Merge branch 'master' into next

172 files changed, 3499 insertions, 3196 deletions

diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 88e3787c6ea9..e298fe194093 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -119,6 +119,7 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
 
 const struct file_operations v9fs_dir_operations = {
 	.read = generic_read_dir,
+	.llseek = generic_file_llseek,
 	.readdir = v9fs_dir_readdir,
 	.open = v9fs_file_open,
 	.release = v9fs_dir_release,
diff --git a/fs/Kconfig b/fs/Kconfig
index d3873583360b..abccb5dab9a8 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1930,6 +1930,16 @@ config CIFS_WEAK_PW_HASH
 
 	  If unsure, say N.
 
+config CIFS_UPCALL
+	  bool "Kerberos/SPNEGO advanced session setup"
+	  depends on CIFS && KEYS
+	  help
+	    Enables an upcall mechanism for CIFS which accesses
+	    userspace helper utilities to provide SPNEGO packaged (RFC 4178)
+	    Kerberos tickets which are needed to mount to certain secure servers
+	    (for which more secure Kerberos authentication is required). If
+	    unsure, say N.
+
 config CIFS_XATTR
         bool "CIFS extended attributes"
         depends on CIFS
@@ -1982,17 +1992,6 @@ config CIFS_EXPERIMENTAL
 	    (which is disabled by default). See the file fs/cifs/README 
 	    for more details.  If unsure, say N.
 
-config CIFS_UPCALL
-	  bool "Kerberos/SPNEGO advanced session setup (EXPERIMENTAL)"
-	  depends on CIFS_EXPERIMENTAL
-	  depends on KEYS
-	  help
-	    Enables an upcall mechanism for CIFS which accesses
-	    userspace helper utilities to provide SPNEGO packaged (RFC 4178)
-	    Kerberos tickets which are needed to mount to certain secure servers
-	    (for which more secure Kerberos authentication is required). If
-	    unsure, say N.
-
 config CIFS_DFS_UPCALL
 	  bool "DFS feature support (EXPERIMENTAL)"
 	  depends on CIFS_EXPERIMENTAL
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c
index fc1a8dc64d78..85a30e929800 100644
--- a/fs/adfs/dir.c
+++ b/fs/adfs/dir.c
@@ -197,6 +197,7 @@ out:
 
 const struct file_operations adfs_dir_operations = {
 	.read		= generic_read_dir,
+	.llseek		= generic_file_llseek,
 	.readdir	= adfs_readdir,
 	.fsync		= file_fsync,
 };
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index 6e3f282424b0..7b36904dbeac 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -19,6 +19,7 @@ static int affs_readdir(struct file *, void *, filldir_t);
 
 const struct file_operations affs_dir_operations = {
 	.read		= generic_read_dir,
+	.llseek		= generic_file_llseek,
 	.readdir	= affs_readdir,
 	.fsync		= file_fsync,
 };
diff --git a/fs/afs/write.c b/fs/afs/write.c
index 9a849ad3c489..065b4e10681a 100644
--- a/fs/afs/write.c
+++ b/fs/afs/write.c
@@ -404,7 +404,7 @@ static int afs_write_back_from_locked_page(struct afs_writeback *wb,
 			page = pages[loop];
 			if (page->index > wb->last)
 				break;
-			if (TestSetPageLocked(page))
+			if (!trylock_page(page))
 				break;
 			if (!PageDirty(page) ||
 			    page_private(page) != (unsigned long) wb) {
diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index bcfb2dc0a61b..2a41c2a7fc52 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -36,6 +36,7 @@ const struct file_operations autofs4_root_operations = {
 	.release	= dcache_dir_close,
 	.read		= generic_read_dir,
 	.readdir	= dcache_readdir,
+	.llseek		= dcache_dir_lseek,
 	.ioctl		= autofs4_root_ioctl,
 };
 
@@ -44,6 +45,7 @@ const struct file_operations autofs4_dir_operations = {
 	.release	= dcache_dir_close,
 	.read		= generic_read_dir,
 	.readdir	= dcache_readdir,
+	.llseek		= dcache_dir_lseek,
 };
 
 const struct inode_operations autofs4_indirect_root_inode_operations = {
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 02c6e62b72f8..740f53672a8a 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -66,6 +66,7 @@ static struct kmem_cache *befs_inode_cachep;
 static const struct file_operations befs_dir_operations = {
 	.read		= generic_read_dir,
 	.readdir	= befs_readdir,
+	.llseek		= generic_file_llseek,
 };
 
 static const struct inode_operations befs_dir_inode_operations = {
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 56372ecf1690..dfc0197905ca 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -914,7 +914,9 @@ static int load_flat_binary(struct linux_binprm * bprm, struct pt_regs * regs)
 	/* Stash our initial stack pointer into the mm structure */
 	current->mm->start_stack = (unsigned long )sp;
 
-	
+#ifdef FLAT_PLAT_INIT
+	FLAT_PLAT_INIT(regs);
+#endif
 	DBG_FLT("start_thread(regs=0x%x, entry=0x%x, start_stack=0x%x)\n",
 		(int)regs, (int)start_addr, (int)current->mm->start_stack);
 	
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index 756205314c24..8d7e88e02e0f 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -120,8 +120,6 @@ static int load_misc_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	if (bprm->misc_bang)
 		goto _ret;
 
-	bprm->misc_bang = 1;
-
 	/* to keep locking time low, we copy the interpreter string */
 	read_lock(&entries_lock);
 	fmt = check_file(bprm);
@@ -199,6 +197,8 @@ static int load_misc_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 	if (retval < 0)
 		goto _error;
 
+	bprm->misc_bang = 1;
+
 	retval = search_binary_handler (bprm, regs);
 	if (retval < 0)
 		goto _error;
diff --git a/fs/bio.c b/fs/bio.c
index 25f1af0d81e5..3cba7ae34d75 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -77,11 +77,8 @@ struct bio_vec *bvec_alloc_bs(gfp_t gfp_mask, int nr, unsigned long *idx, struct
 	 */
 
 	bvl = mempool_alloc(bs->bvec_pools[*idx], gfp_mask);
-	if (bvl) {
-		struct biovec_slab *bp = bvec_slabs + *idx;
-
-		memset(bvl, 0, bp->nr_vecs * sizeof(struct bio_vec));
-	}
+	if (bvl)
+		memset(bvl, 0, bvec_nr_vecs(*idx) * sizeof(struct bio_vec));
 
 	return bvl;
 }
@@ -149,7 +146,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs)
 				goto out;
 			}
 			bio->bi_flags |= idx << BIO_POOL_OFFSET;
-			bio->bi_max_vecs = bvec_slabs[idx].nr_vecs;
+			bio->bi_max_vecs = bvec_nr_vecs(idx);
 		}
 		bio->bi_io_vec = bvl;
 	}
@@ -472,20 +469,21 @@ static void bio_free_map_data(struct bio_map_data *bmd)
 	kfree(bmd);
 }
 
-static struct bio_map_data *bio_alloc_map_data(int nr_segs, int iov_count)
+static struct bio_map_data *bio_alloc_map_data(int nr_segs, int iov_count,
+					       gfp_t gfp_mask)
 {
-	struct bio_map_data *bmd = kmalloc(sizeof(*bmd), GFP_KERNEL);
+	struct bio_map_data *bmd = kmalloc(sizeof(*bmd), gfp_mask);
 
 	if (!bmd)
 		return NULL;
 
-	bmd->iovecs = kmalloc(sizeof(struct bio_vec) * nr_segs, GFP_KERNEL);
+	bmd->iovecs = kmalloc(sizeof(struct bio_vec) * nr_segs, gfp_mask);
 	if (!bmd->iovecs) {
 		kfree(bmd);
 		return NULL;
 	}
 
-	bmd->sgvecs = kmalloc(sizeof(struct sg_iovec) * iov_count, GFP_KERNEL);
+	bmd->sgvecs = kmalloc(sizeof(struct sg_iovec) * iov_count, gfp_mask);
 	if (bmd->sgvecs)
 		return bmd;
 
@@ -494,8 +492,8 @@ static struct bio_map_data *bio_alloc_map_data(int nr_segs, int iov_count)
 	return NULL;
 }
 
-static int __bio_copy_iov(struct bio *bio, struct sg_iovec *iov, int iov_count,
-			  int uncopy)
+static int __bio_copy_iov(struct bio *bio, struct bio_vec *iovecs,
+			  struct sg_iovec *iov, int iov_count, int uncopy)
 {
 	int ret = 0, i;
 	struct bio_vec *bvec;
@@ -505,7 +503,7 @@ static int __bio_copy_iov(struct bio *bio, struct sg_iovec *iov, int iov_count,
 
 	__bio_for_each_segment(bvec, bio, i, 0) {
 		char *bv_addr = page_address(bvec->bv_page);
-		unsigned int bv_len = bvec->bv_len;
+		unsigned int bv_len = iovecs[i].bv_len;
 
 		while (bv_len && iov_idx < iov_count) {
 			unsigned int bytes;
@@ -557,7 +555,7 @@ int bio_uncopy_user(struct bio *bio)
 	struct bio_map_data *bmd = bio->bi_private;
 	int ret;
 
-	ret = __bio_copy_iov(bio, bmd->sgvecs, bmd->nr_sgvecs, 1);
+	ret = __bio_copy_iov(bio, bmd->iovecs, bmd->sgvecs, bmd->nr_sgvecs, 1);
 
 	bio_free_map_data(bmd);
 	bio_put(bio);
@@ -599,7 +597,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q, struct sg_iovec *iov,
 		len += iov[i].iov_len;
 	}
 
-	bmd = bio_alloc_map_data(nr_pages, iov_count);
+	bmd = bio_alloc_map_data(nr_pages, iov_count, GFP_KERNEL);
 	if (!bmd)
 		return ERR_PTR(-ENOMEM);
 
@@ -636,7 +634,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q, struct sg_iovec *iov,
 	 * success
 	 */
 	if (!write_to_vm) {
-		ret = __bio_copy_iov(bio, iov, iov_count, 0);
+		ret = __bio_copy_iov(bio, bio->bi_io_vec, iov, iov_count, 0);
 		if (ret)
 			goto cleanup;
 	}
@@ -945,19 +943,22 @@ static void bio_copy_kern_endio(struct bio *bio, int err)
 {
 	struct bio_vec *bvec;
 	const int read = bio_data_dir(bio) == READ;
-	char *p = bio->bi_private;
+	struct bio_map_data *bmd = bio->bi_private;
 	int i;
+	char *p = bmd->sgvecs[0].iov_base;
 
 	__bio_for_each_segment(bvec, bio, i, 0) {
 		char *addr = page_address(bvec->bv_page);
+		int len = bmd->iovecs[i].bv_len;
 
 		if (read && !err)
-			memcpy(p, addr, bvec->bv_len);
+			memcpy(p, addr, len);
 
 		__free_page(bvec->bv_page);
-		p += bvec->bv_len;
+		p += len;
 	}
 
+	bio_free_map_data(bmd);
 	bio_put(bio);
 }
 
@@ -981,11 +982,21 @@ struct bio *bio_copy_kern(struct request_queue *q, void *data, unsigned int len,
 	const int nr_pages = end - start;
 	struct bio *bio;
 	struct bio_vec *bvec;
+	struct bio_map_data *bmd;
 	int i, ret;
+	struct sg_iovec iov;
+
+	iov.iov_base = data;
+	iov.iov_len = len;
+
+	bmd = bio_alloc_map_data(nr_pages, 1, gfp_mask);
+	if (!bmd)
+		return ERR_PTR(-ENOMEM);
 
+	ret = -ENOMEM;
 	bio = bio_alloc(gfp_mask, nr_pages);
 	if (!bio)
-		return ERR_PTR(-ENOMEM);
+		goto out_bmd;
 
 	while (len) {
 		struct page *page;
@@ -1019,14 +1030,18 @@ struct bio *bio_copy_kern(struct request_queue *q, void *data, unsigned int len,
 		}
 	}
 
-	bio->bi_private = data;
+	bio->bi_private = bmd;
 	bio->bi_end_io = bio_copy_kern_endio;
+
+	bio_set_map_data(bmd, bio, &iov, 1);
 	return bio;
 cleanup:
 	bio_for_each_segment(bvec, bio, i)
 		__free_page(bvec->bv_page);
 
 	bio_put(bio);
+out_bmd:
+	bio_free_map_data(bmd);
 
 	return ERR_PTR(ret);
 }
diff --git a/fs/buffer.c b/fs/buffer.c
index 4dbe52948e8f..ac78d4c19b3b 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -1720,7 +1720,7 @@ static int __block_write_full_page(struct inode *inode, struct page *page,
 		 */
 		if (wbc->sync_mode != WB_SYNC_NONE || !wbc->nonblocking) {
 			lock_buffer(bh);
-		} else if (test_set_buffer_locked(bh)) {
+		} else if (!trylock_buffer(bh)) {
 			redirty_page_for_writepage(wbc, page);
 			continue;
 		}
@@ -2926,14 +2926,17 @@ int submit_bh(int rw, struct buffer_head * bh)
 	BUG_ON(!buffer_mapped(bh));
 	BUG_ON(!bh->b_end_io);
 
-	if (buffer_ordered(bh) && (rw == WRITE))
-		rw = WRITE_BARRIER;
+	/*
+	 * Mask in barrier bit for a write (could be either a WRITE or a
+	 * WRITE_SYNC
+	 */
+	if (buffer_ordered(bh) && (rw & WRITE))
+		rw |= WRITE_BARRIER;
 
 	/*
-	 * Only clear out a write error when rewriting, should this
-	 * include WRITE_SYNC as well?
+	 * Only clear out a write error when rewriting
 	 */
-	if (test_set_buffer_req(bh) && (rw == WRITE || rw == WRITE_BARRIER))
+	if (test_set_buffer_req(bh) && (rw & WRITE))
 		clear_buffer_write_io_error(bh);
 
 	/*
@@ -3000,7 +3003,7 @@ void ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
 
 		if (rw == SWRITE || rw == SWRITE_SYNC)
 			lock_buffer(bh);
-		else if (test_set_buffer_locked(bh))
+		else if (!trylock_buffer(bh))
 			continue;
 
 		if (rw == WRITE || rw == SWRITE || rw == SWRITE_SYNC) {
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES
index 1f3465201fdf..f9e4ad97a79e 100644
--- a/fs/cifs/CHANGES
+++ b/fs/cifs/CHANGES
@@ -1,3 +1,16 @@
+Version 1.54
+------------
+Fix premature write failure on congested networks (we would give up
+on EAGAIN from the socket too quickly on large writes).
+Cifs_mkdir and cifs_create now respect the setgid bit on parent dir.
+Fix endian problems in acl (mode from/to cifs acl) on bigendian
+architectures.  Fix problems with preserving timestamps on copying open
+files (e.g. "cp -a") to Windows servers.  For mkdir and create honor setgid bit
+on parent directory when server supports Unix Extensions but not POSIX
+create. Update cifs.upcall version to handle new Kerberos sec flags
+(this requires update of cifs.upcall program from Samba).  Fix memory leak
+on dns_upcall (resolving DFS referralls).
+
 Version 1.53
 ------------
 DFS support added (Microsoft Distributed File System client support needed
diff --git a/fs/cifs/README b/fs/cifs/README
index 2bd6fe556f88..68b5c1169d9d 100644
--- a/fs/cifs/README
+++ b/fs/cifs/README
@@ -642,8 +642,30 @@ The statistics for the number of total SMBs and oplock breaks are different in
 that they represent all for that share, not just those for which the server
 returned success.
 	
-Also note that "cat /proc/fs/cifs/DebugData" will display information about 
+Also note that "cat /proc/fs/cifs/DebugData" will display information about
 the active sessions and the shares that are mounted.
-Enabling Kerberos (extended security) works when CONFIG_CIFS_EXPERIMENTAL is
-on but requires a user space helper (from the Samba project). NTLM and NTLMv2 and
-LANMAN support do not require this helper.
+
+Enabling Kerberos (extended security) works but requires version 1.2 or later
+of the helper program cifs.upcall to be present and to be configured in the
+/etc/request-key.conf file.  The cifs.upcall helper program is from the Samba
+project(http://www.samba.org). NTLM and NTLMv2 and LANMAN support do not
+require this helper. Note that NTLMv2 security (which does not require the
+cifs.upcall helper program), instead of using Kerberos, is sufficient for
+some use cases.
+
+Enabling DFS support (used to access shares transparently in an MS-DFS
+global name space) requires that CONFIG_CIFS_EXPERIMENTAL be enabled.  In
+addition, DFS support for target shares which are specified as UNC
+names which begin with host names (rather than IP addresses) requires
+a user space helper (such as cifs.upcall) to be present in order to
+translate host names to ip address, and the user space helper must also
+be configured in the file /etc/request-key.conf
+
+To use cifs Kerberos and DFS support, the Linux keyutils package should be
+installed and something like the following lines should be added to the
+/etc/request-key.conf file:
+
+create cifs.spnego * * /usr/local/sbin/cifs.upcall %k
+create dns_resolver * * /usr/local/sbin/cifs.upcall %k
+
+
diff --git a/fs/cifs/asn1.c b/fs/cifs/asn1.c
index 6bb440b257b0..1b09f1670061 100644
--- a/fs/cifs/asn1.c
+++ b/fs/cifs/asn1.c
@@ -476,6 +476,7 @@ decode_negTokenInit(unsigned char *security_blob, int length,
 	unsigned int cls, con, tag, oidlen, rc;
 	bool use_ntlmssp = false;
 	bool use_kerberos = false;
+	bool use_mskerberos = false;
 
 	*secType = NTLM; /* BB eventually make Kerberos or NLTMSSP the default*/
 
@@ -483,6 +484,7 @@ decode_negTokenInit(unsigned char *security_blob, int length,
 
 	asn1_open(&ctx, security_blob, length);
 
+	/* GSSAPI header */
 	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
 		cFYI(1, ("Error decoding negTokenInit header"));
 		return 0;
@@ -490,156 +492,149 @@ decode_negTokenInit(unsigned char *security_blob, int length,
 		   || (tag != ASN1_EOC)) {
 		cFYI(1, ("cls = %d con = %d tag = %d", cls, con, tag));
 		return 0;
-	} else {
-		/*      remember to free obj->oid */
-		rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
-		if (rc) {
-			if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
-				rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
-				if (rc) {
-					rc = compare_oid(oid, oidlen,
-							 SPNEGO_OID,
-							 SPNEGO_OID_LEN);
-					kfree(oid);
-				}
-			} else
-				rc = 0;
-		}
+	}
 
-		if (!rc) {
-			cFYI(1, ("Error decoding negTokenInit header"));
-			return 0;
-		}
+	/* Check for SPNEGO OID -- remember to free obj->oid */
+	rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
+	if (rc) {
+		if ((tag == ASN1_OJI) && (con == ASN1_PRI) &&
+		    (cls == ASN1_UNI)) {
+			rc = asn1_oid_decode(&ctx, end, &oid, &oidlen);
+			if (rc) {
+				rc = compare_oid(oid, oidlen, SPNEGO_OID,
+						 SPNEGO_OID_LEN);
+				kfree(oid);
+			}
+		} else
+			rc = 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
-			   || (tag != ASN1_EOC)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	/* SPNEGO OID not present or garbled -- bail out */
+	if (!rc) {
+		cFYI(1, ("Error decoding negTokenInit header"));
+		return 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
-			   || (tag != ASN1_SEQ)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
+		   || (tag != ASN1_EOC)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding 2nd part of negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
-			   || (tag != ASN1_EOC)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+		   || (tag != ASN1_SEQ)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		if (asn1_header_decode
-		    (&ctx, &sequence_end, &cls, &con, &tag) == 0) {
-			cFYI(1, ("Error decoding 2nd part of negTokenInit"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
-			   || (tag != ASN1_SEQ)) {
-			cFYI(1,
-			     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding 2nd part of negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)
+		   || (tag != ASN1_EOC)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 0",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		while (!asn1_eoc_decode(&ctx, sequence_end)) {
-			rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
-			if (!rc) {
-				cFYI(1,
-				     ("Error decoding negTokenInit hdr exit2"));
-				return 0;
-			}
-			if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
-				if (asn1_oid_decode(&ctx, end, &oid, &oidlen)) {
-
-					cFYI(1,
-					  ("OID len = %d oid = 0x%lx 0x%lx "
-					   "0x%lx 0x%lx",
-					   oidlen, *oid, *(oid + 1),
-					   *(oid + 2), *(oid + 3)));
-
-					if (compare_oid(oid, oidlen,
-							MSKRB5_OID,
-							MSKRB5_OID_LEN))
-						use_kerberos = true;
-					else if (compare_oid(oid, oidlen,
-							     KRB5_OID,
-							     KRB5_OID_LEN))
-						use_kerberos = true;
-					else if (compare_oid(oid, oidlen,
-							     NTLMSSP_OID,
-							     NTLMSSP_OID_LEN))
-						use_ntlmssp = true;
-
-					kfree(oid);
-				}
-			} else {
-				cFYI(1, ("Should be an oid what is going on?"));
-			}
-		}
+	if (asn1_header_decode
+	    (&ctx, &sequence_end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding 2nd part of negTokenInit"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+		   || (tag != ASN1_SEQ)) {
+		cFYI(1,
+		     ("cls = %d con = %d tag = %d end = %p (%d) exit 1",
+		      cls, con, tag, end, *end));
+		return 0;
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit3"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
-			/* tag = 3 indicating mechListMIC */
+	while (!asn1_eoc_decode(&ctx, sequence_end)) {
+		rc = asn1_header_decode(&ctx, &end, &cls, &con, &tag);
+		if (!rc) {
 			cFYI(1,
-			     ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",
-			      cls, con, tag, end, *end));
+			     ("Error decoding negTokenInit hdr exit2"));
 			return 0;
 		}
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit5"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
-			   || (tag != ASN1_SEQ)) {
-			cFYI(1, ("cls = %d con = %d tag = %d end = %p (%d)",
-				cls, con, tag, end, *end));
+		if ((tag == ASN1_OJI) && (con == ASN1_PRI)) {
+			if (asn1_oid_decode(&ctx, end, &oid, &oidlen)) {
+
+				cFYI(1, ("OID len = %d oid = 0x%lx 0x%lx "
+					 "0x%lx 0x%lx", oidlen, *oid,
+					 *(oid + 1), *(oid + 2), *(oid + 3)));
+
+				if (compare_oid(oid, oidlen, MSKRB5_OID,
+						MSKRB5_OID_LEN) &&
+						!use_kerberos)
+					use_mskerberos = true;
+				else if (compare_oid(oid, oidlen, KRB5_OID,
+						     KRB5_OID_LEN) &&
+						     !use_mskerberos)
+					use_kerberos = true;
+				else if (compare_oid(oid, oidlen, NTLMSSP_OID,
+						     NTLMSSP_OID_LEN))
+					use_ntlmssp = true;
+
+				kfree(oid);
+			}
+		} else {
+			cFYI(1, ("Should be an oid what is going on?"));
 		}
+	}
 
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit 7"));
-			return 0;
-		} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
-			cFYI(1,
-			     ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
-		if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
-			cFYI(1,
-			     ("Error decoding last part negTokenInit exit9"));
-			return 0;
-		} else if ((cls != ASN1_UNI) || (con != ASN1_PRI)
-			   || (tag != ASN1_GENSTR)) {
-			cFYI(1,
-			     ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",
-			      cls, con, tag, end, *end));
-			return 0;
-		}
-		cFYI(1, ("Need to call asn1_octets_decode() function for %s",
-			 ctx.pointer));	/* is this UTF-8 or ASCII? */
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit3"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
+		/* tag = 3 indicating mechListMIC */
+		cFYI(1, ("Exit 4 cls = %d con = %d tag = %d end = %p (%d)",
+			 cls, con, tag, end, *end));
+		return 0;
+	}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit5"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_CON)
+		   || (tag != ASN1_SEQ)) {
+		cFYI(1, ("cls = %d con = %d tag = %d end = %p (%d)",
+			cls, con, tag, end, *end));
+	}
+
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit 7"));
+		return 0;
+	} else if ((cls != ASN1_CTX) || (con != ASN1_CON)) {
+		cFYI(1, ("Exit 8 cls = %d con = %d tag = %d end = %p (%d)",
+			 cls, con, tag, end, *end));
+		return 0;
+	}
+	if (asn1_header_decode(&ctx, &end, &cls, &con, &tag) == 0) {
+		cFYI(1, ("Error decoding last part negTokenInit exit9"));
+		return 0;
+	} else if ((cls != ASN1_UNI) || (con != ASN1_PRI)
+		   || (tag != ASN1_GENSTR)) {
+		cFYI(1, ("Exit10 cls = %d con = %d tag = %d end = %p (%d)",
+			 cls, con, tag, end, *end));
+		return 0;
 	}
+	cFYI(1, ("Need to call asn1_octets_decode() function for %s",
+		 ctx.pointer));	/* is this UTF-8 or ASCII? */
 
 	if (use_kerberos)
 		*secType = Kerberos;
+	else if (use_mskerberos)
+		*secType = MSKerberos;
 	else if (use_ntlmssp)
 		*secType = NTLMSSP;
 
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 688a2d42153f..69a12aae91d3 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -79,27 +79,25 @@ void cifs_dump_mids(struct TCP_Server_Info *server)
 	spin_lock(&GlobalMid_Lock);
 	list_for_each(tmp, &server->pending_mid_q) {
 		mid_entry = list_entry(tmp, struct mid_q_entry, qhead);
-		if (mid_entry) {
-			cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
-				mid_entry->midState,
-				(int)mid_entry->command,
-				mid_entry->pid,
-				mid_entry->tsk,
-				mid_entry->mid));
+		cERROR(1, ("State: %d Cmd: %d Pid: %d Tsk: %p Mid %d",
+			mid_entry->midState,
+			(int)mid_entry->command,
+			mid_entry->pid,
+			mid_entry->tsk,
+			mid_entry->mid));
 #ifdef CONFIG_CIFS_STATS2
-			cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
-				mid_entry->largeBuf,
-				mid_entry->resp_buf,
-				mid_entry->when_received,
-				jiffies));
+		cERROR(1, ("IsLarge: %d buf: %p time rcv: %ld now: %ld",
+			mid_entry->largeBuf,
+			mid_entry->resp_buf,
+			mid_entry->when_received,
+			jiffies));
 #endif /* STATS2 */
-			cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
-				  mid_entry->multiEnd));
-			if (mid_entry->resp_buf) {
-				cifs_dump_detail(mid_entry->resp_buf);
-				cifs_dump_mem("existing buf: ",
-					mid_entry->resp_buf, 62);
-			}
+		cERROR(1, ("IsMult: %d IsEnd: %d", mid_entry->multiRsp,
+			  mid_entry->multiEnd));
+		if (mid_entry->resp_buf) {
+			cifs_dump_detail(mid_entry->resp_buf);
+			cifs_dump_mem("existing buf: ",
+				mid_entry->resp_buf, 62);
 		}
 	}
 	spin_unlock(&GlobalMid_Lock);
@@ -163,16 +161,13 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
 				mid_entry = list_entry(tmp1, struct
 					mid_q_entry,
 					qhead);
-				if (mid_entry) {
-					seq_printf(m,
-							"State: %d com: %d pid:"
-							" %d tsk: %p mid %d\n",
-							mid_entry->midState,
-							(int)mid_entry->command,
-							mid_entry->pid,
-							mid_entry->tsk,
-							mid_entry->mid);
-				}
+				seq_printf(m, "State: %d com: %d pid:"
+						" %d tsk: %p mid %d\n",
+						mid_entry->midState,
+						(int)mid_entry->command,
+						mid_entry->pid,
+						mid_entry->tsk,
+						mid_entry->mid);
 			}
 			spin_unlock(&GlobalMid_Lock);
 		}
diff --git a/fs/cifs/cifs_spnego.c b/fs/cifs/cifs_spnego.c
index 7013aaff6aed..117ef4bba68e 100644
--- a/fs/cifs/cifs_spnego.c
+++ b/fs/cifs/cifs_spnego.c
@@ -66,8 +66,8 @@ struct key_type cifs_spnego_key_type = {
 	.describe	= user_describe,
 };
 
-#define MAX_VER_STR_LEN   9 /* length of longest version string e.g.
-				strlen(";ver=0xFF") */
+#define MAX_VER_STR_LEN   8 /* length of longest version string e.g.
+				strlen("ver=0xFF") */
 #define MAX_MECH_STR_LEN 13 /* length of longest security mechanism name, eg
 			       in future could have strlen(";sec=ntlmsspi") */
 #define MAX_IPV6_ADDR_LEN 42 /* eg FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/60 */
@@ -81,11 +81,15 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
 	struct key *spnego_key;
 	const char *hostname = server->hostname;
 
-	/* BB: come up with better scheme for determining length */
-	/* length of fields (with semicolons): ver=0xyz ipv4= ipaddress host=
-	   hostname sec=mechanism uid=0x uid */
-	desc_len = MAX_VER_STR_LEN + 5 + MAX_IPV6_ADDR_LEN + 1 + 6 +
-		  strlen(hostname) + MAX_MECH_STR_LEN + 8 + (sizeof(uid_t) * 2);
+	/* length of fields (with semicolons): ver=0xyz ip4=ipaddress
+	   host=hostname sec=mechanism uid=0xFF user=username */
+	desc_len = MAX_VER_STR_LEN +
+		   6 /* len of "host=" */ + strlen(hostname) +
+		   5 /* len of ";ipv4=" */ + MAX_IPV6_ADDR_LEN +
+		   MAX_MECH_STR_LEN +
+		   7 /* len of ";uid=0x" */ + (sizeof(uid_t) * 2) +
+		   6 /* len of ";user=" */ + strlen(sesInfo->userName) + 1;
+
 	spnego_key = ERR_PTR(-ENOMEM);
 	description = kzalloc(desc_len, GFP_KERNEL);
 	if (description == NULL)
@@ -110,9 +114,11 @@ cifs_get_spnego_key(struct cifsSesInfo *sesInfo)
 
 	dp = description + strlen(description);
 
-	/* for now, only sec=krb5 is valid */
+	/* for now, only sec=krb5 and sec=mskrb5 are valid */
 	if (server->secType == Kerberos)
 		sprintf(dp, ";sec=krb5");
+	else if (server->secType == MSKerberos)
+		sprintf(dp, ";sec=mskrb5");
 	else
 		goto out;
 
diff --git a/fs/cifs/cifs_spnego.h b/fs/cifs/cifs_spnego.h
index 05a34b17a1ab..e4041ec4d712 100644
--- a/fs/cifs/cifs_spnego.h
+++ b/fs/cifs/cifs_spnego.h
@@ -23,7 +23,7 @@
 #ifndef _CIFS_SPNEGO_H
 #define _CIFS_SPNEGO_H
 
-#define CIFS_SPNEGO_UPCALL_VERSION 1
+#define CIFS_SPNEGO_UPCALL_VERSION 2
 
 /*
  * The version field should always be set to CIFS_SPNEGO_UPCALL_VERSION.
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 1ec7076f7b24..25ecbd5b0404 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -175,6 +175,8 @@ out_no_root:
 	if (inode)
 		iput(inode);
 
+	cifs_umount(sb, cifs_sb);
+
 out_mount_failed:
 	if (cifs_sb) {
 #ifdef CONFIG_CIFS_DFS_UPCALL
@@ -930,36 +932,34 @@ static int cifs_oplock_thread(void *dummyarg)
 			schedule_timeout(39*HZ);
 		} else {
 			oplock_item = list_entry(GlobalOplock_Q.next,
-				struct oplock_q_entry, qhead);
-			if (oplock_item) {
-				cFYI(1, ("found oplock item to write out"));
-				pTcon = oplock_item->tcon;
-				inode = oplock_item->pinode;
-				netfid = oplock_item->netfid;
-				spin_unlock(&GlobalMid_Lock);
-				DeleteOplockQEntry(oplock_item);
-				/* can not grab inode sem here since it would
+						struct oplock_q_entry, qhead);
+			cFYI(1, ("found oplock item to write out"));
+			pTcon = oplock_item->tcon;
+			inode = oplock_item->pinode;
+			netfid = oplock_item->netfid;
+			spin_unlock(&GlobalMid_Lock);
+			DeleteOplockQEntry(oplock_item);
+			/* can not grab inode sem here since it would
 				deadlock when oplock received on delete
 				since vfs_unlink holds the i_mutex across
 				the call */
-				/* mutex_lock(&inode->i_mutex);*/
-				if (S_ISREG(inode->i_mode)) {
-					rc =
-					   filemap_fdatawrite(inode->i_mapping);
-					if (CIFS_I(inode)->clientCanCacheRead
-									 == 0) {
-						waitrc = filemap_fdatawait(inode->i_mapping);
-						invalidate_remote_inode(inode);
-					}
-					if (rc == 0)
-						rc = waitrc;
-				} else
-					rc = 0;
-				/* mutex_unlock(&inode->i_mutex);*/
-				if (rc)
-					CIFS_I(inode)->write_behind_rc = rc;
-				cFYI(1, ("Oplock flush inode %p rc %d",
-					inode, rc));
+			/* mutex_lock(&inode->i_mutex);*/
+			if (S_ISREG(inode->i_mode)) {
+				rc = filemap_fdatawrite(inode->i_mapping);
+				if (CIFS_I(inode)->clientCanCacheRead == 0) {
+					waitrc = filemap_fdatawait(
+							      inode->i_mapping);
+					invalidate_remote_inode(inode);
+				}
+				if (rc == 0)
+					rc = waitrc;
+			} else
+				rc = 0;
+			/* mutex_unlock(&inode->i_mutex);*/
+			if (rc)
+				CIFS_I(inode)->write_behind_rc = rc;
+			cFYI(1, ("Oplock flush inode %p rc %d",
+				inode, rc));
 
 				/* releasing stale oplock after recent reconnect
 				of smb session using a now incorrect file
@@ -967,15 +967,13 @@ static int cifs_oplock_thread(void *dummyarg)
 				not bother sending an oplock release if session
 				to server still is disconnected since oplock
 				already released by the server in that case */
-				if (pTcon->tidStatus != CifsNeedReconnect) {
-				    rc = CIFSSMBLock(0, pTcon, netfid,
-					    0 /* len */ , 0 /* offset */, 0,
-					    0, LOCKING_ANDX_OPLOCK_RELEASE,
-					    false /* wait flag */);
-					cFYI(1, ("Oplock release rc = %d", rc));
-				}
-			} else
-				spin_unlock(&GlobalMid_Lock);
+			if (pTcon->tidStatus != CifsNeedReconnect) {
+				rc = CIFSSMBLock(0, pTcon, netfid,
+						0 /* len */ , 0 /* offset */, 0,
+						0, LOCKING_ANDX_OPLOCK_RELEASE,
+						false /* wait flag */);
+				cFYI(1, ("Oplock release rc = %d", rc));
+			}
 			set_current_state(TASK_INTERRUPTIBLE);
 			schedule_timeout(1);  /* yield in case q were corrupt */
 		}
@@ -1001,8 +999,7 @@ static int cifs_dnotify_thread(void *dummyarg)
 		list_for_each(tmp, &GlobalSMBSessionList) {
 			ses = list_entry(tmp, struct cifsSesInfo,
 				cifsSessionList);
-			if (ses && ses->server &&
-			     atomic_read(&ses->server->inFlight))
+			if (ses->server && atomic_read(&ses->server->inFlight))
 				wake_up_all(&ses->server->response_q);
 		}
 		read_unlock(&GlobalSMBSeslock);
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 25a6cbd15529..135c965c4137 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -101,5 +101,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 extern const struct export_operations cifs_export_ops;
 #endif /* EXPERIMENTAL */
 
-#define CIFS_VERSION   "1.53"
+#define CIFS_VERSION   "1.54"
 #endif				/* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 7e1cf262effe..8dfd6f24d488 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -80,7 +80,8 @@ enum securityEnum {
 	NTLMv2,			/* Legacy NTLM auth with NTLMv2 hash */
 	RawNTLMSSP,		/* NTLMSSP without SPNEGO */
 	NTLMSSP,		/* NTLMSSP via SPNEGO */
-	Kerberos		/* Kerberos via SPNEGO */
+	Kerberos,		/* Kerberos via SPNEGO */
+	MSKerberos,		/* MS Kerberos via SPNEGO */
 };
 
 enum protocolEnum {
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 409abce12732..d2a073edd1b8 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -262,7 +262,7 @@
  */
 #define CIFS_NO_HANDLE        0xFFFF
 
-#define NO_CHANGE_64          cpu_to_le64(0xFFFFFFFFFFFFFFFFULL)
+#define NO_CHANGE_64          0xFFFFFFFFFFFFFFFFULL
 #define NO_CHANGE_32          0xFFFFFFFFUL
 
 /* IPC$ in ASCII */
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index b9f5e935f821..a729d083e6f4 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -172,12 +172,13 @@ extern int CIFSSMBQFSUnixInfo(const int xid, struct cifsTconInfo *tcon);
 extern int CIFSSMBQFSPosixInfo(const int xid, struct cifsTconInfo *tcon,
 			struct kstatfs *FSData);
 
-extern int CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon,
+extern int CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
 			const char *fileName, const FILE_BASIC_INFO *data,
 			const struct nls_table *nls_codepage,
 			int remap_special_chars);
-extern int CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
-			const FILE_BASIC_INFO *data, __u16 fid);
+extern int CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+			const FILE_BASIC_INFO *data, __u16 fid,
+			__u32 pid_of_opener);
 #if 0
 extern int CIFSSMBSetAttrLegacy(int xid, struct cifsTconInfo *tcon,
 			char *fileName, __u16 dos_attributes,
@@ -191,9 +192,20 @@ extern int CIFSSMBSetEOF(const int xid, struct cifsTconInfo *tcon,
 extern int CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon,
 			 __u64 size, __u16 fileHandle, __u32 opener_pid,
 			bool AllocSizeFlag);
-extern int CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *pTcon,
-			char *full_path, __u64 mode, __u64 uid,
-			__u64 gid, dev_t dev,
+
+struct cifs_unix_set_info_args {
+	__u64	ctime;
+	__u64	atime;
+	__u64	mtime;
+	__u64	mode;
+	__u64	uid;
+	__u64	gid;
+	dev_t	device;
+};
+
+extern int CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *pTcon,
+			char *fileName,
+			const struct cifs_unix_set_info_args *args,
 			const struct nls_table *nls_codepage,
 			int remap_special_chars);
 
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index c621ffa2ca90..994de7c90474 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -128,8 +128,7 @@ static void mark_open_files_invalid(struct cifsTconInfo *pTcon)
 	write_lock(&GlobalSMBSeslock);
 	list_for_each_safe(tmp, tmp1, &pTcon->openFileList) {
 		open_file = list_entry(tmp, struct cifsFileInfo, tlist);
-		if (open_file)
-			open_file->invalidHandle = true;
+		open_file->invalidHandle = true;
 	}
 	write_unlock(&GlobalSMBSeslock);
 	/* BB Add call to invalidate_inodes(sb) for all superblocks mounted
@@ -4816,8 +4815,8 @@ CIFSSMBSetFileSize(const int xid, struct cifsTconInfo *tcon, __u64 size,
    time and resort to the original setpathinfo level which takes the ancient
    DOS time format with 2 second granularity */
 int
-CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
-		    const FILE_BASIC_INFO *data, __u16 fid)
+CIFSSMBSetFileInfo(const int xid, struct cifsTconInfo *tcon,
+		    const FILE_BASIC_INFO *data, __u16 fid, __u32 pid_of_opener)
 {
 	struct smb_com_transaction2_sfi_req *pSMB  = NULL;
 	char *data_offset;
@@ -4830,11 +4829,8 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
 	if (rc)
 		return rc;
 
-	/* At this point there is no need to override the current pid
-	with the pid of the opener, but that could change if we someday
-	use an existing handle (rather than opening one on the fly) */
-	/* pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
-	pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));*/
+	pSMB->hdr.Pid = cpu_to_le16((__u16)pid_of_opener);
+	pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid_of_opener >> 16));
 
 	params = 6;
 	pSMB->MaxSetupCount = 0;
@@ -4882,9 +4878,9 @@ CIFSSMBSetFileTimes(const int xid, struct cifsTconInfo *tcon,
 
 
 int
-CIFSSMBSetTimes(const int xid, struct cifsTconInfo *tcon, const char *fileName,
-		const FILE_BASIC_INFO *data,
-		const struct nls_table *nls_codepage, int remap)
+CIFSSMBSetPathInfo(const int xid, struct cifsTconInfo *tcon,
+		   const char *fileName, const FILE_BASIC_INFO *data,
+		   const struct nls_table *nls_codepage, int remap)
 {
 	TRANSACTION2_SPI_REQ *pSMB = NULL;
 	TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5013,10 +5009,9 @@ SetAttrLgcyRetry:
 #endif /* temporarily unneeded SetAttr legacy function */
 
 int
-CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
-		    char *fileName, __u64 mode, __u64 uid, __u64 gid,
-		    dev_t device, const struct nls_table *nls_codepage,
-		    int remap)
+CIFSSMBUnixSetInfo(const int xid, struct cifsTconInfo *tcon, char *fileName,
+		   const struct cifs_unix_set_info_args *args,
+		   const struct nls_table *nls_codepage, int remap)
 {
 	TRANSACTION2_SPI_REQ *pSMB = NULL;
 	TRANSACTION2_SPI_RSP *pSMBr = NULL;
@@ -5025,6 +5020,7 @@ CIFSSMBUnixSetPerms(const int xid, struct cifsTconInfo *tcon,
 	int bytes_returned = 0;
 	FILE_UNIX_BASIC_INFO *data_offset;
 	__u16 params, param_offset, offset, count, byte_count;
+	__u64 mode = args->mode;
 
 	cFYI(1, ("In SetUID/GID/Mode"));
 setPermsRetry:
@@ -5080,16 +5076,16 @@ setPermsRetry:
 	set file size and do not want to truncate file size to zero
 	accidently as happened on one Samba server beta by putting
 	zero instead of -1 here */
-	data_offset->EndOfFile = NO_CHANGE_64;
-	data_offset->NumOfBytes = NO_CHANGE_64;
-	data_offset->LastStatusChange = NO_CHANGE_64;
-	data_offset->LastAccessTime = NO_CHANGE_64;
-	data_offset->LastModificationTime = NO_CHANGE_64;
-	data_offset->Uid = cpu_to_le64(uid);
-	data_offset->Gid = cpu_to_le64(gid);
+	data_offset->EndOfFile = cpu_to_le64(NO_CHANGE_64);
+	data_offset->NumOfBytes = cpu_to_le64(NO_CHANGE_64);
+	data_offset->LastStatusChange = cpu_to_le64(args->ctime);
+	data_offset->LastAccessTime = cpu_to_le64(args->atime);
+	data_offset->LastModificationTime = cpu_to_le64(args->mtime);
+	data_offset->Uid = cpu_to_le64(args->uid);
+	data_offset->Gid = cpu_to_le64(args->gid);
 	/* better to leave device as zero when it is  */
-	data_offset->DevMajor = cpu_to_le64(MAJOR(device));
-	data_offset->DevMinor = cpu_to_le64(MINOR(device));
+	data_offset->DevMajor = cpu_to_le64(MAJOR(args->device));
+	data_offset->DevMinor = cpu_to_le64(MINOR(args->device));
 	data_offset->Permissions = cpu_to_le64(mode);
 
 	if (S_ISREG(mode))
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index b51d5777cde6..4c13bcdb92a5 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -151,7 +151,7 @@ cifs_reconnect(struct TCP_Server_Info *server)
 	}
 	list_for_each(tmp, &GlobalTreeConnectionList) {
 		tcon = list_entry(tmp, struct cifsTconInfo, cifsConnectionList);
-		if ((tcon) && (tcon->ses) && (tcon->ses->server == server))
+		if ((tcon->ses) && (tcon->ses->server == server))
 			tcon->tidStatus = CifsNeedReconnect;
 	}
 	read_unlock(&GlobalSMBSeslock);
@@ -173,14 +173,12 @@ cifs_reconnect(struct TCP_Server_Info *server)
 		mid_entry = list_entry(tmp, struct
 					mid_q_entry,
 					qhead);
-		if (mid_entry) {
-			if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
+		if (mid_entry->midState == MID_REQUEST_SUBMITTED) {
 				/* Mark other intransit requests as needing
 				   retry so we do not immediately mark the
 				   session bad again (ie after we reconnect
 				   below) as they timeout too */
-				mid_entry->midState = MID_RETRY_NEEDED;
-			}
+			mid_entry->midState = MID_RETRY_NEEDED;
 		}
 	}
 	spin_unlock(&GlobalMid_Lock);
@@ -351,11 +349,9 @@ cifs_demultiplex_thread(struct TCP_Server_Info *server)
 
 	current->flags |= PF_MEMALLOC;
 	cFYI(1, ("Demultiplex PID: %d", task_pid_nr(current)));
-	write_lock(&GlobalSMBSeslock);
-	atomic_inc(&tcpSesAllocCount);
-	length = tcpSesAllocCount.counter;
-	write_unlock(&GlobalSMBSeslock);
-	if (length  > 1)
+
+	length = atomic_inc_return(&tcpSesAllocCount);
+	if (length > 1)
 		mempool_resize(cifs_req_poolp, length + cifs_min_rcv,
 				GFP_KERNEL);
 
@@ -745,14 +741,11 @@ multi_t2_fnd:
 		coming home not much else we can do but free the memory */
 	}
 
-	write_lock(&GlobalSMBSeslock);
-	atomic_dec(&tcpSesAllocCount);
-	length = tcpSesAllocCount.counter;
-
 	/* last chance to mark ses pointers invalid
 	if there are any pointing to this (e.g
 	if a crazy root user tried to kill cifsd
 	kernel thread explicitly this might happen) */
+	write_lock(&GlobalSMBSeslock);
 	list_for_each(tmp, &GlobalSMBSessionList) {
 		ses = list_entry(tmp, struct cifsSesInfo,
 				cifsSessionList);
@@ -763,6 +756,8 @@ multi_t2_fnd:
 
 	kfree(server->hostname);
 	kfree(server);
+
+	length = atomic_dec_return(&tcpSesAllocCount);
 	if (length  > 0)
 		mempool_resize(cifs_req_poolp, length + cifs_min_rcv,
 				GFP_KERNEL);
@@ -3603,19 +3598,21 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 	char ntlm_session_key[CIFS_SESS_KEY_SIZE];
 	bool ntlmv2_flag = false;
 	int first_time = 0;
+	struct TCP_Server_Info *server = pSesInfo->server;
 
 	/* what if server changes its buffer size after dropping the session? */
-	if (pSesInfo->server->maxBuf == 0) /* no need to send on reconnect */ {
+	if (server->maxBuf == 0) /* no need to send on reconnect */ {
 		rc = CIFSSMBNegotiate(xid, pSesInfo);
-		if (rc == -EAGAIN) /* retry only once on 1st time connection */ {
+		if (rc == -EAGAIN) {
+			/* retry only once on 1st time connection */
 			rc = CIFSSMBNegotiate(xid, pSesInfo);
 			if (rc == -EAGAIN)
 				rc = -EHOSTDOWN;
 		}
 		if (rc == 0) {
 			spin_lock(&GlobalMid_Lock);
-			if (pSesInfo->server->tcpStatus != CifsExiting)
-				pSesInfo->server->tcpStatus = CifsGood;
+			if (server->tcpStatus != CifsExiting)
+				server->tcpStatus = CifsGood;
 			else
 				rc = -EHOSTDOWN;
 			spin_unlock(&GlobalMid_Lock);
@@ -3623,97 +3620,90 @@ int cifs_setup_session(unsigned int xid, struct cifsSesInfo *pSesInfo,
 		}
 		first_time = 1;
 	}
-	if (!rc) {
-		pSesInfo->flags = 0;
-		pSesInfo->capabilities = pSesInfo->server->capabilities;
-		if (linuxExtEnabled == 0)
-			pSesInfo->capabilities &= (~CAP_UNIX);
+
+	if (rc)
+		goto ss_err_exit;
+
+	pSesInfo->flags = 0;
+	pSesInfo->capabilities = server->capabilities;
+	if (linuxExtEnabled == 0)
+		pSesInfo->capabilities &= (~CAP_UNIX);
 	/*	pSesInfo->sequence_number = 0;*/
-		cFYI(1,
-		      ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
-			pSesInfo->server->secMode,
-			pSesInfo->server->capabilities,
-			pSesInfo->server->timeAdj));
-		if (experimEnabled < 2)
-			rc = CIFS_SessSetup(xid, pSesInfo,
-					    first_time, nls_info);
-		else if (extended_security
-				&& (pSesInfo->capabilities
-					& CAP_EXTENDED_SECURITY)
-				&& (pSesInfo->server->secType == NTLMSSP)) {
-			rc = -EOPNOTSUPP;
-		} else if (extended_security
-			   && (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
-			   && (pSesInfo->server->secType == RawNTLMSSP)) {
-			cFYI(1, ("NTLMSSP sesssetup"));
-			rc = CIFSNTLMSSPNegotiateSessSetup(xid,
-						pSesInfo,
-						&ntlmv2_flag,
-						nls_info);
-			if (!rc) {
-				if (ntlmv2_flag) {
-					char *v2_response;
-					cFYI(1, ("more secure NTLM ver2 hash"));
-					if (CalcNTLMv2_partial_mac_key(pSesInfo,
-						nls_info)) {
-						rc = -ENOMEM;
-						goto ss_err_exit;
-					} else
-						v2_response = kmalloc(16 + 64 /* blob */, GFP_KERNEL);
-					if (v2_response) {
-						CalcNTLMv2_response(pSesInfo,
-								   v2_response);
-				/*		if (first_time)
-						  cifs_calculate_ntlmv2_mac_key(
-						   pSesInfo->server->mac_signing_key,
-						   response, ntlm_session_key,*/
-						kfree(v2_response);
+	cFYI(1, ("Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d",
+		 server->secMode, server->capabilities, server->timeAdj));
+
+	if (experimEnabled < 2)
+		rc = CIFS_SessSetup(xid, pSesInfo, first_time, nls_info);
+	else if (extended_security
+			&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+			&& (server->secType == NTLMSSP)) {
+		rc = -EOPNOTSUPP;
+	} else if (extended_security
+			&& (pSesInfo->capabilities & CAP_EXTENDED_SECURITY)
+			&& (server->secType == RawNTLMSSP)) {
+		cFYI(1, ("NTLMSSP sesssetup"));
+		rc = CIFSNTLMSSPNegotiateSessSetup(xid, pSesInfo, &ntlmv2_flag,
+						   nls_info);
+		if (!rc) {
+			if (ntlmv2_flag) {
+				char *v2_response;
+				cFYI(1, ("more secure NTLM ver2 hash"));
+				if (CalcNTLMv2_partial_mac_key(pSesInfo,
+								nls_info)) {
+					rc = -ENOMEM;
+					goto ss_err_exit;
+				} else
+					v2_response = kmalloc(16 + 64 /* blob*/,
+								GFP_KERNEL);
+				if (v2_response) {
+					CalcNTLMv2_response(pSesInfo,
+								v2_response);
+				/*	if (first_time)
+						cifs_calculate_ntlmv2_mac_key */
+					kfree(v2_response);
 					/* BB Put dummy sig in SessSetup PDU? */
-					} else {
-						rc = -ENOMEM;
-						goto ss_err_exit;
-					}
-
 				} else {
-					SMBNTencrypt(pSesInfo->password,
-						pSesInfo->server->cryptKey,
-						ntlm_session_key);
-
-					if (first_time)
-						cifs_calculate_mac_key(
-							&pSesInfo->server->mac_signing_key,
-							ntlm_session_key,
-							pSesInfo->password);
+					rc = -ENOMEM;
+					goto ss_err_exit;
 				}
+
+			} else {
+				SMBNTencrypt(pSesInfo->password,
+					     server->cryptKey,
+					     ntlm_session_key);
+
+				if (first_time)
+					cifs_calculate_mac_key(
+					     &server->mac_signing_key,
+					     ntlm_session_key,
+					     pSesInfo->password);
+			}
 			/* for better security the weaker lanman hash not sent
 			   in AuthSessSetup so we no longer calculate it */
 
-				rc = CIFSNTLMSSPAuthSessSetup(xid,
-					pSesInfo,
-					ntlm_session_key,
-					ntlmv2_flag,
-					nls_info);
-			}
-		} else { /* old style NTLM 0.12 session setup */
-			SMBNTencrypt(pSesInfo->password,
-				pSesInfo->server->cryptKey,
-				ntlm_session_key);
+			rc = CIFSNTLMSSPAuthSessSetup(xid, pSesInfo,
+						      ntlm_session_key,
+						      ntlmv2_flag,
+						      nls_info);
+		}
+	} else { /* old style NTLM 0.12 session setup */
+		SMBNTencrypt(pSesInfo->password, server->cryptKey,
+			     ntlm_session_key);
 
-			if (first_time)
-				cifs_calculate_mac_key(
-					&pSesInfo->server->mac_signing_key,
-					ntlm_session_key, pSesInfo->password);
+		if (first_time)
+			cifs_calculate_mac_key(&server->mac_signing_key,
+						ntlm_session_key,
+						pSesInfo->password);
 
-			rc = CIFSSessSetup(xid, pSesInfo,
-				ntlm_session_key, nls_info);
-		}
-		if (rc) {
-			cERROR(1, ("Send error in SessSetup = %d", rc));
-		} else {
-			cFYI(1, ("CIFS Session Established successfully"));
+		rc = CIFSSessSetup(xid, pSesInfo, ntlm_session_key, nls_info);
+	}
+	if (rc) {
+		cERROR(1, ("Send error in SessSetup = %d", rc));
+	} else {
+		cFYI(1, ("CIFS Session Established successfully"));
 			pSesInfo->status = CifsGood;
-		}
 	}
+
 ss_err_exit:
 	return rc;
 }
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index fb69c1fa85c9..e962e75e6f7b 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -226,23 +226,28 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 		/* If Open reported that we actually created a file
 		then we now have to set the mode if possible */
 		if ((pTcon->unix_ext) && (oplock & CIFS_CREATE_ACTION)) {
+			struct cifs_unix_set_info_args args = {
+				.mode	= mode,
+				.ctime	= NO_CHANGE_64,
+				.atime	= NO_CHANGE_64,
+				.mtime	= NO_CHANGE_64,
+				.device	= 0,
+			};
+
 			if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
-				CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
-					(__u64)current->fsuid,
-					(__u64)current->fsgid,
-					0 /* dev */,
-					cifs_sb->local_nls,
-					cifs_sb->mnt_cifs_flags &
-						CIFS_MOUNT_MAP_SPECIAL_CHR);
+				args.uid = (__u64) current->fsuid;
+				if (inode->i_mode & S_ISGID)
+					args.gid = (__u64) inode->i_gid;
+				else
+					args.gid = (__u64) current->fsgid;
 			} else {
-				CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode,
-					(__u64)-1,
-					(__u64)-1,
-					0 /* dev */,
-					cifs_sb->local_nls,
-					cifs_sb->mnt_cifs_flags &
-						CIFS_MOUNT_MAP_SPECIAL_CHR);
+				args.uid = NO_CHANGE_64;
+				args.gid = NO_CHANGE_64;
 			}
+			CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args,
+				cifs_sb->local_nls,
+				cifs_sb->mnt_cifs_flags &
+					CIFS_MOUNT_MAP_SPECIAL_CHR);
 		} else {
 			/* BB implement mode setting via Windows security
 			   descriptors e.g. */
@@ -267,7 +272,12 @@ cifs_create(struct inode *inode, struct dentry *direntry, int mode,
 				    (cifs_sb->mnt_cifs_flags &
 				     CIFS_MOUNT_SET_UID)) {
 					newinode->i_uid = current->fsuid;
-					newinode->i_gid = current->fsgid;
+					if (inode->i_mode & S_ISGID)
+						newinode->i_gid =
+							inode->i_gid;
+					else
+						newinode->i_gid =
+							current->fsgid;
 				}
 			}
 		}
@@ -357,21 +367,24 @@ int cifs_mknod(struct inode *inode, struct dentry *direntry, int mode,
 	if (full_path == NULL)
 		rc = -ENOMEM;
 	else if (pTcon->unix_ext) {
-		mode &= ~current->fs->umask;
+		struct cifs_unix_set_info_args args = {
+			.mode	= mode & ~current->fs->umask,
+			.ctime	= NO_CHANGE_64,
+			.atime	= NO_CHANGE_64,
+			.mtime	= NO_CHANGE_64,
+			.device	= device_number,
+		};
 		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
-			rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path,
-				mode, (__u64)current->fsuid,
-				(__u64)current->fsgid,
-				device_number, cifs_sb->local_nls,
-				cifs_sb->mnt_cifs_flags &
-					CIFS_MOUNT_MAP_SPECIAL_CHR);
+			args.uid = (__u64) current->fsuid;
+			args.gid = (__u64) current->fsgid;
 		} else {
-			rc = CIFSSMBUnixSetPerms(xid, pTcon,
-				full_path, mode, (__u64)-1, (__u64)-1,
-				device_number, cifs_sb->local_nls,
-				cifs_sb->mnt_cifs_flags &
-					CIFS_MOUNT_MAP_SPECIAL_CHR);
+			args.uid = NO_CHANGE_64;
+			args.gid = NO_CHANGE_64;
 		}
+		rc = CIFSSMBUnixSetInfo(xid, pTcon, full_path,
+			&args, cifs_sb->local_nls,
+			cifs_sb->mnt_cifs_flags &
+				CIFS_MOUNT_MAP_SPECIAL_CHR);
 
 		if (!rc) {
 			rc = cifs_get_inode_info_unix(&newinode, full_path,
diff --git a/fs/cifs/dns_resolve.c b/fs/cifs/dns_resolve.c
index f730ef35499e..a2e0673e1b08 100644
--- a/fs/cifs/dns_resolve.c
+++ b/fs/cifs/dns_resolve.c
@@ -47,11 +47,18 @@ static int dns_resolver_instantiate(struct key *key, const void *data,
 	return rc;
 }
 
+static void
+dns_resolver_destroy(struct key *key)
+{
+	kfree(key->payload.data);
+}
+
 struct key_type key_type_dns_resolver = {
 	.name        = "dns_resolver",
 	.def_datalen = sizeof(struct in_addr),
 	.describe    = user_describe,
 	.instantiate = dns_resolver_instantiate,
+	.destroy     = dns_resolver_destroy,
 	.match       = user_match,
 };
 
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0aac824371a5..ff14d14903a0 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -310,18 +310,19 @@ int cifs_open(struct inode *inode, struct file *file)
 		/* time to set mode which we can not set earlier due to
 		   problems creating new read-only files */
 		if (pTcon->unix_ext) {
-			CIFSSMBUnixSetPerms(xid, pTcon, full_path,
-					    inode->i_mode,
-					    (__u64)-1, (__u64)-1, 0 /* dev */,
+			struct cifs_unix_set_info_args args = {
+				.mode	= inode->i_mode,
+				.uid	= NO_CHANGE_64,
+				.gid	= NO_CHANGE_64,
+				.ctime	= NO_CHANGE_64,
+				.atime	= NO_CHANGE_64,
+				.mtime	= NO_CHANGE_64,
+				.device	= 0,
+			};
+			CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args,
 					    cifs_sb->local_nls,
 					    cifs_sb->mnt_cifs_flags &
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
-		} else {
-			/* BB implement via Windows security descriptors eg
-			   CIFSSMBWinSetPerms(xid, pTcon, full_path, mode,
-					      -1, -1, local_nls);
-			   in the meantime could set r/o dos attribute when
-			   perms are eg: mode & 0222 == 0 */
 		}
 	}
 
@@ -1280,7 +1281,7 @@ retry:
 
 			if (first < 0)
 				lock_page(page);
-			else if (TestSetPageLocked(page))
+			else if (!trylock_page(page))
 				break;
 
 			if (unlikely(page->mapping != mapping)) {
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 46e54d39461d..9c548f110102 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -546,7 +546,8 @@ int cifs_get_inode_info(struct inode **pinode,
 		if ((inode->i_mode & S_IWUGO) == 0 &&
 		    (attr & ATTR_READONLY) == 0)
 			inode->i_mode |= (S_IWUGO & default_mode);
-			inode->i_mode &= ~S_IFMT;
+
+		inode->i_mode &= ~S_IFMT;
 	}
 	/* clear write bits if ATTR_READONLY is set */
 	if (attr & ATTR_READONLY)
@@ -649,6 +650,7 @@ struct inode *cifs_iget(struct super_block *sb, unsigned long ino)
 		inode->i_fop = &simple_dir_operations;
 		inode->i_uid = cifs_sb->mnt_uid;
 		inode->i_gid = cifs_sb->mnt_gid;
+	} else if (rc) {
 		_FreeXid(xid);
 		iget_failed(inode);
 		return ERR_PTR(rc);
@@ -737,7 +739,7 @@ psx_del_no_retry:
 			/* ATTRS set to normal clears r/o bit */
 			pinfo_buf->Attributes = cpu_to_le32(ATTR_NORMAL);
 			if (!(pTcon->ses->flags & CIFS_SES_NT4))
-				rc = CIFSSMBSetTimes(xid, pTcon, full_path,
+				rc = CIFSSMBSetPathInfo(xid, pTcon, full_path,
 						     pinfo_buf,
 						     cifs_sb->local_nls,
 						     cifs_sb->mnt_cifs_flags &
@@ -767,9 +769,10 @@ psx_del_no_retry:
 						 cifs_sb->mnt_cifs_flags &
 						    CIFS_MOUNT_MAP_SPECIAL_CHR);
 				if (rc == 0) {
-					rc = CIFSSMBSetFileTimes(xid, pTcon,
-								 pinfo_buf,
-								 netfid);
+					rc = CIFSSMBSetFileInfo(xid, pTcon,
+								pinfo_buf,
+								netfid,
+								current->tgid);
 					CIFSSMBClose(xid, pTcon, netfid);
 				}
 			}
@@ -984,32 +987,41 @@ mkdir_get_info:
 		  * failed to get it from the server or was set bogus */
 		if ((direntry->d_inode) && (direntry->d_inode->i_nlink < 2))
 				direntry->d_inode->i_nlink = 2;
+
 		mode &= ~current->fs->umask;
+		/* must turn on setgid bit if parent dir has it */
+		if (inode->i_mode & S_ISGID)
+			mode |= S_ISGID;
+
 		if (pTcon->unix_ext) {
+			struct cifs_unix_set_info_args args = {
+				.mode	= mode,
+				.ctime	= NO_CHANGE_64,
+				.atime	= NO_CHANGE_64,
+				.mtime	= NO_CHANGE_64,
+				.device	= 0,
+			};
 			if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID) {
-				CIFSSMBUnixSetPerms(xid, pTcon, full_path,
-						    mode,
-						    (__u64)current->fsuid,
-						    (__u64)current->fsgid,
-						    0 /* dev_t */,
-						    cifs_sb->local_nls,
-						    cifs_sb->mnt_cifs_flags &
-						    CIFS_MOUNT_MAP_SPECIAL_CHR);
+				args.uid = (__u64)current->fsuid;
+				if (inode->i_mode & S_ISGID)
+					args.gid = (__u64)inode->i_gid;
+				else
+					args.gid = (__u64)current->fsgid;
 			} else {
-				CIFSSMBUnixSetPerms(xid, pTcon, full_path,
-						    mode, (__u64)-1,
-						    (__u64)-1, 0 /* dev_t */,
-						    cifs_sb->local_nls,
-						    cifs_sb->mnt_cifs_flags &
-						    CIFS_MOUNT_MAP_SPECIAL_CHR);
+				args.uid = NO_CHANGE_64;
+				args.gid = NO_CHANGE_64;
 			}
+			CIFSSMBUnixSetInfo(xid, pTcon, full_path, &args,
+					    cifs_sb->local_nls,
+					    cifs_sb->mnt_cifs_flags &
+					    CIFS_MOUNT_MAP_SPECIAL_CHR);
 		} else {
 			if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL) &&
 			    (mode & S_IWUGO) == 0) {
 				FILE_BASIC_INFO pInfo;
 				memset(&pInfo, 0, sizeof(pInfo));
 				pInfo.Attributes = cpu_to_le32(ATTR_READONLY);
-				CIFSSMBSetTimes(xid, pTcon, full_path,
+				CIFSSMBSetPathInfo(xid, pTcon, full_path,
 						&pInfo, cifs_sb->local_nls,
 						cifs_sb->mnt_cifs_flags &
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
@@ -1024,8 +1036,12 @@ mkdir_get_info:
 				     CIFS_MOUNT_SET_UID) {
 					direntry->d_inode->i_uid =
 						current->fsuid;
-					direntry->d_inode->i_gid =
-						current->fsgid;
+					if (inode->i_mode & S_ISGID)
+						direntry->d_inode->i_gid =
+							inode->i_gid;
+					else
+						direntry->d_inode->i_gid =
+							current->fsgid;
 				}
 			}
 		}
@@ -1310,10 +1326,11 @@ int cifs_revalidate(struct dentry *direntry)
 /*		if (S_ISDIR(direntry->d_inode->i_mode))
 			shrink_dcache_parent(direntry); */
 		if (S_ISREG(direntry->d_inode->i_mode)) {
-			if (direntry->d_inode->i_mapping)
+			if (direntry->d_inode->i_mapping) {
 				wbrc = filemap_fdatawait(direntry->d_inode->i_mapping);
 				if (wbrc)
 					CIFS_I(direntry->d_inode)->write_behind_rc = wbrc;
+			}
 			/* may eventually have to do this for open files too */
 			if (list_empty(&(cifsInode->openFileList))) {
 				/* changed on server - flush read ahead pages */
@@ -1489,30 +1506,228 @@ cifs_set_file_size(struct inode *inode, struct iattr *attrs,
 	return rc;
 }
 
-int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
+static int
+cifs_set_file_info(struct inode *inode, struct iattr *attrs, int xid,
+		    char *full_path, __u32 dosattr)
 {
+	int rc;
+	int oplock = 0;
+	__u16 netfid;
+	__u32 netpid;
+	bool set_time = false;
+	struct cifsFileInfo *open_file;
+	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+	struct cifsTconInfo *pTcon = cifs_sb->tcon;
+	FILE_BASIC_INFO	info_buf;
+
+	if (attrs->ia_valid & ATTR_ATIME) {
+		set_time = true;
+		info_buf.LastAccessTime =
+			cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_atime));
+	} else
+		info_buf.LastAccessTime = 0;
+
+	if (attrs->ia_valid & ATTR_MTIME) {
+		set_time = true;
+		info_buf.LastWriteTime =
+		    cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime));
+	} else
+		info_buf.LastWriteTime = 0;
+
+	/*
+	 * Samba throws this field away, but windows may actually use it.
+	 * Do not set ctime unless other time stamps are changed explicitly
+	 * (i.e. by utimes()) since we would then have a mix of client and
+	 * server times.
+	 */
+	if (set_time && (attrs->ia_valid & ATTR_CTIME)) {
+		cFYI(1, ("CIFS - CTIME changed"));
+		info_buf.ChangeTime =
+		    cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime));
+	} else
+		info_buf.ChangeTime = 0;
+
+	info_buf.CreationTime = 0;	/* don't change */
+	info_buf.Attributes = cpu_to_le32(dosattr);
+
+	/*
+	 * If the file is already open for write, just use that fileid
+	 */
+	open_file = find_writable_file(cifsInode);
+	if (open_file) {
+		netfid = open_file->netfid;
+		netpid = open_file->pid;
+		goto set_via_filehandle;
+	}
+
+	/*
+	 * NT4 apparently returns success on this call, but it doesn't
+	 * really work.
+	 */
+	if (!(pTcon->ses->flags & CIFS_SES_NT4)) {
+		rc = CIFSSMBSetPathInfo(xid, pTcon, full_path,
+				     &info_buf, cifs_sb->local_nls,
+				     cifs_sb->mnt_cifs_flags &
+					CIFS_MOUNT_MAP_SPECIAL_CHR);
+		if (rc != -EOPNOTSUPP && rc != -EINVAL)
+			goto out;
+	}
+
+	cFYI(1, ("calling SetFileInfo since SetPathInfo for "
+		 "times not supported by this server"));
+	rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
+			 SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
+			 CREATE_NOT_DIR, &netfid, &oplock,
+			 NULL, cifs_sb->local_nls,
+			 cifs_sb->mnt_cifs_flags &
+				CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+	if (rc != 0) {
+		if (rc == -EIO)
+			rc = -EINVAL;
+		goto out;
+	}
+
+	netpid = current->tgid;
+
+set_via_filehandle:
+	rc = CIFSSMBSetFileInfo(xid, pTcon, &info_buf, netfid, netpid);
+	if (open_file == NULL)
+		CIFSSMBClose(xid, pTcon, netfid);
+	else
+		atomic_dec(&open_file->wrtPending);
+out:
+	return rc;
+}
+
+static int
+cifs_setattr_unix(struct dentry *direntry, struct iattr *attrs)
+{
+	int rc;
 	int xid;
-	struct cifs_sb_info *cifs_sb;
-	struct cifsTconInfo *pTcon;
 	char *full_path = NULL;
-	int rc = -EACCES;
-	FILE_BASIC_INFO time_buf;
-	bool set_time = false;
-	bool set_dosattr = false;
-	__u64 mode = 0xFFFFFFFFFFFFFFFFULL;
-	__u64 uid = 0xFFFFFFFFFFFFFFFFULL;
-	__u64 gid = 0xFFFFFFFFFFFFFFFFULL;
-	struct cifsInodeInfo *cifsInode;
 	struct inode *inode = direntry->d_inode;
+	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+	struct cifsTconInfo *pTcon = cifs_sb->tcon;
+	struct cifs_unix_set_info_args *args = NULL;
+
+	cFYI(1, ("setattr_unix on file %s attrs->ia_valid=0x%x",
+		 direntry->d_name.name, attrs->ia_valid));
+
+	xid = GetXid();
+
+	if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) {
+		/* check if we have permission to change attrs */
+		rc = inode_change_ok(inode, attrs);
+		if (rc < 0)
+			goto out;
+		else
+			rc = 0;
+	}
+
+	full_path = build_path_from_dentry(direntry);
+	if (full_path == NULL) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	if ((attrs->ia_valid & ATTR_MTIME) || (attrs->ia_valid & ATTR_SIZE)) {
+		/*
+		   Flush data before changing file size or changing the last
+		   write time of the file on the server. If the
+		   flush returns error, store it to report later and continue.
+		   BB: This should be smarter. Why bother flushing pages that
+		   will be truncated anyway? Also, should we error out here if
+		   the flush returns error?
+		 */
+		rc = filemap_write_and_wait(inode->i_mapping);
+		if (rc != 0) {
+			cifsInode->write_behind_rc = rc;
+			rc = 0;
+		}
+	}
+
+	if (attrs->ia_valid & ATTR_SIZE) {
+		rc = cifs_set_file_size(inode, attrs, xid, full_path);
+		if (rc != 0)
+			goto out;
+	}
+
+	/* skip mode change if it's just for clearing setuid/setgid */
+	if (attrs->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID))
+		attrs->ia_valid &= ~ATTR_MODE;
+
+	args = kmalloc(sizeof(*args), GFP_KERNEL);
+	if (args == NULL) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	/* set up the struct */
+	if (attrs->ia_valid & ATTR_MODE)
+		args->mode = attrs->ia_mode;
+	else
+		args->mode = NO_CHANGE_64;
+
+	if (attrs->ia_valid & ATTR_UID)
+		args->uid = attrs->ia_uid;
+	else
+		args->uid = NO_CHANGE_64;
+
+	if (attrs->ia_valid & ATTR_GID)
+		args->gid = attrs->ia_gid;
+	else
+		args->gid = NO_CHANGE_64;
+
+	if (attrs->ia_valid & ATTR_ATIME)
+		args->atime = cifs_UnixTimeToNT(attrs->ia_atime);
+	else
+		args->atime = NO_CHANGE_64;
+
+	if (attrs->ia_valid & ATTR_MTIME)
+		args->mtime = cifs_UnixTimeToNT(attrs->ia_mtime);
+	else
+		args->mtime = NO_CHANGE_64;
+
+	if (attrs->ia_valid & ATTR_CTIME)
+		args->ctime = cifs_UnixTimeToNT(attrs->ia_ctime);
+	else
+		args->ctime = NO_CHANGE_64;
+
+	args->device = 0;
+	rc = CIFSSMBUnixSetInfo(xid, pTcon, full_path, args,
+				cifs_sb->local_nls,
+				cifs_sb->mnt_cifs_flags &
+				CIFS_MOUNT_MAP_SPECIAL_CHR);
+
+	if (!rc)
+		rc = inode_setattr(inode, attrs);
+out:
+	kfree(args);
+	kfree(full_path);
+	FreeXid(xid);
+	return rc;
+}
+
+static int
+cifs_setattr_nounix(struct dentry *direntry, struct iattr *attrs)
+{
+	int xid;
+	struct inode *inode = direntry->d_inode;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+	struct cifsInodeInfo *cifsInode = CIFS_I(inode);
+	char *full_path = NULL;
+	int rc = -EACCES;
+	__u32 dosattr = 0;
+	__u64 mode = NO_CHANGE_64;
 
 	xid = GetXid();
 
 	cFYI(1, ("setattr on file %s attrs->iavalid 0x%x",
 		 direntry->d_name.name, attrs->ia_valid));
 
-	cifs_sb = CIFS_SB(inode->i_sb);
-	pTcon = cifs_sb->tcon;
-
 	if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_PERM) == 0) {
 		/* check if we have permission to change attrs */
 		rc = inode_change_ok(inode, attrs);
@@ -1528,7 +1743,6 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 		FreeXid(xid);
 		return -ENOMEM;
 	}
-	cifsInode = CIFS_I(inode);
 
 	if ((attrs->ia_valid & ATTR_MTIME) || (attrs->ia_valid & ATTR_SIZE)) {
 		/*
@@ -1559,21 +1773,8 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 	 * CIFSACL support + proper Windows to Unix idmapping, we may be
 	 * able to support this in the future.
 	 */
-	if (!pTcon->unix_ext &&
-	    !(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID)) {
+	if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SET_UID))
 		attrs->ia_valid &= ~(ATTR_UID | ATTR_GID);
-	} else {
-		if (attrs->ia_valid & ATTR_UID) {
-			cFYI(1, ("UID changed to %d", attrs->ia_uid));
-			uid = attrs->ia_uid;
-		}
-		if (attrs->ia_valid & ATTR_GID) {
-			cFYI(1, ("GID changed to %d", attrs->ia_gid));
-			gid = attrs->ia_gid;
-		}
-	}
-
-	time_buf.Attributes = 0;
 
 	/* skip mode change if it's just for clearing setuid/setgid */
 	if (attrs->ia_valid & (ATTR_KILL_SUID|ATTR_KILL_SGID))
@@ -1584,13 +1785,7 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 		mode = attrs->ia_mode;
 	}
 
-	if ((pTcon->unix_ext)
-	    && (attrs->ia_valid & (ATTR_MODE | ATTR_GID | ATTR_UID)))
-		rc = CIFSSMBUnixSetPerms(xid, pTcon, full_path, mode, uid, gid,
-					 0 /* dev_t */, cifs_sb->local_nls,
-					 cifs_sb->mnt_cifs_flags &
-						CIFS_MOUNT_MAP_SPECIAL_CHR);
-	else if (attrs->ia_valid & ATTR_MODE) {
+	if (attrs->ia_valid & ATTR_MODE) {
 		rc = 0;
 #ifdef CONFIG_CIFS_EXPERIMENTAL
 		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_CIFS_ACL)
@@ -1599,24 +1794,19 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 #endif
 		if (((mode & S_IWUGO) == 0) &&
 		    (cifsInode->cifsAttrs & ATTR_READONLY) == 0) {
-			set_dosattr = true;
-			time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs |
-							  ATTR_READONLY);
+
+			dosattr = cifsInode->cifsAttrs | ATTR_READONLY;
+
 			/* fix up mode if we're not using dynperm */
 			if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM) == 0)
 				attrs->ia_mode = inode->i_mode & ~S_IWUGO;
 		} else if ((mode & S_IWUGO) &&
 			   (cifsInode->cifsAttrs & ATTR_READONLY)) {
-			/* If file is readonly on server, we would
-			not be able to write to it - so if any write
-			bit is enabled for user or group or other we
-			need to at least try to remove r/o dos attr */
-			set_dosattr = true;
-			time_buf.Attributes = cpu_to_le32(cifsInode->cifsAttrs &
-					    (~ATTR_READONLY));
-			/* Windows ignores set to zero */
-			if (time_buf.Attributes == 0)
-				time_buf.Attributes |= cpu_to_le32(ATTR_NORMAL);
+
+			dosattr = cifsInode->cifsAttrs & ~ATTR_READONLY;
+			/* Attributes of 0 are ignored */
+			if (dosattr == 0)
+				dosattr |= ATTR_NORMAL;
 
 			/* reset local inode permissions to normal */
 			if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_DYNPERM)) {
@@ -1634,82 +1824,18 @@ int cifs_setattr(struct dentry *direntry, struct iattr *attrs)
 		}
 	}
 
-	if (attrs->ia_valid & ATTR_ATIME) {
-		set_time = true;
-		time_buf.LastAccessTime =
-		    cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_atime));
-	} else
-		time_buf.LastAccessTime = 0;
-
-	if (attrs->ia_valid & ATTR_MTIME) {
-		set_time = true;
-		time_buf.LastWriteTime =
-		    cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_mtime));
-	} else
-		time_buf.LastWriteTime = 0;
-	/* Do not set ctime explicitly unless other time
-	   stamps are changed explicitly (i.e. by utime()
-	   since we would then have a mix of client and
-	   server times */
+	if (attrs->ia_valid & (ATTR_MTIME|ATTR_ATIME|ATTR_CTIME) ||
+	    ((attrs->ia_valid & ATTR_MODE) && dosattr)) {
+		rc = cifs_set_file_info(inode, attrs, xid, full_path, dosattr);
+		/* BB: check for rc = -EOPNOTSUPP and switch to legacy mode */
 
-	if (set_time && (attrs->ia_valid & ATTR_CTIME)) {
-		set_time = true;
-		/* Although Samba throws this field away
-		it may be useful to Windows - but we do
-		not want to set ctime unless some other
-		timestamp is changing */
-		cFYI(1, ("CIFS - CTIME changed"));
-		time_buf.ChangeTime =
-		    cpu_to_le64(cifs_UnixTimeToNT(attrs->ia_ctime));
-	} else
-		time_buf.ChangeTime = 0;
-
-	if (set_time || set_dosattr) {
-		time_buf.CreationTime = 0;	/* do not change */
-		/* In the future we should experiment - try setting timestamps
-		   via Handle (SetFileInfo) instead of by path */
-		if (!(pTcon->ses->flags & CIFS_SES_NT4))
-			rc = CIFSSMBSetTimes(xid, pTcon, full_path, &time_buf,
-					     cifs_sb->local_nls,
-					     cifs_sb->mnt_cifs_flags &
-						CIFS_MOUNT_MAP_SPECIAL_CHR);
-		else
-			rc = -EOPNOTSUPP;
-
-		if (rc == -EOPNOTSUPP) {
-			int oplock = 0;
-			__u16 netfid;
-
-			cFYI(1, ("calling SetFileInfo since SetPathInfo for "
-				 "times not supported by this server"));
-			/* BB we could scan to see if we already have it open
-			   and pass in pid of opener to function */
-			rc = CIFSSMBOpen(xid, pTcon, full_path, FILE_OPEN,
-					 SYNCHRONIZE | FILE_WRITE_ATTRIBUTES,
-					 CREATE_NOT_DIR, &netfid, &oplock,
-					 NULL, cifs_sb->local_nls,
-					 cifs_sb->mnt_cifs_flags &
-						CIFS_MOUNT_MAP_SPECIAL_CHR);
-			if (rc == 0) {
-				rc = CIFSSMBSetFileTimes(xid, pTcon, &time_buf,
-							 netfid);
-				CIFSSMBClose(xid, pTcon, netfid);
-			} else {
-			/* BB For even older servers we could convert time_buf
-			   into old DOS style which uses two second
-			   granularity */
-
-			/* rc = CIFSSMBSetTimesLegacy(xid, pTcon, full_path,
-					&time_buf, cifs_sb->local_nls); */
-			}
-		}
 		/* Even if error on time set, no sense failing the call if
 		the server would set the time to a reasonable value anyway,
 		and this check ensures that we are not being called from
 		sys_utimes in which case we ought to fail the call back to
 		the user when the server rejects the call */
 		if ((rc) && (attrs->ia_valid &
-			 (ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE)))
+				(ATTR_MODE | ATTR_GID | ATTR_UID | ATTR_SIZE)))
 			rc = 0;
 	}
 
@@ -1723,6 +1849,21 @@ cifs_setattr_exit:
 	return rc;
 }
 
+int
+cifs_setattr(struct dentry *direntry, struct iattr *attrs)
+{
+	struct inode *inode = direntry->d_inode;
+	struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
+	struct cifsTconInfo *pTcon = cifs_sb->tcon;
+
+	if (pTcon->unix_ext)
+		return cifs_setattr_unix(direntry, attrs);
+
+	return cifs_setattr_nounix(direntry, attrs);
+
+	/* BB: add cifs_setattr_legacy for really old servers */
+}
+
 #if 0
 void cifs_delete_inode(struct inode *inode)
 {
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index ed150efbe27c..b537fad3bf50 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -505,7 +505,7 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 			unicode_ssetup_strings(&bcc_ptr, ses, nls_cp);
 		} else
 			ascii_ssetup_strings(&bcc_ptr, ses, nls_cp);
-	} else if (type == Kerberos) {
+	} else if (type == Kerberos || type == MSKerberos) {
 #ifdef CONFIG_CIFS_UPCALL
 		struct cifs_spnego_msg *msg;
 		spnego_key = cifs_get_spnego_key(ses);
@@ -516,6 +516,15 @@ CIFS_SessSetup(unsigned int xid, struct cifsSesInfo *ses, int first_time,
 		}
 
 		msg = spnego_key->payload.data;
+		/* check version field to make sure that cifs.upcall is
+		   sending us a response in an expected form */
+		if (msg->version != CIFS_SPNEGO_UPCALL_VERSION) {
+			cERROR(1, ("incorrect version of cifs.upcall (expected"
+				   " %d but got %d)",
+				   CIFS_SPNEGO_UPCALL_VERSION, msg->version));
+			rc = -EKEYREJECTED;
+			goto ssetup_exit;
+		}
 		/* bail out if key is too long */
 		if (msg->sesskey_len >
 		    sizeof(ses->server->mac_signing_key.data.krb5)) {
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 000ac509c98a..e286db9f5ee2 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -265,6 +265,7 @@ smb_send2(struct socket *ssocket, struct kvec *iov, int n_vec,
 	cFYI(1, ("Sending smb:  total_len %d", total_len));
 	dump_smb(smb_buffer, len);
 
+	i = 0;
 	while (total_len) {
 		rc = kernel_sendmsg(ssocket, &smb_msg, &iov[first_vec],
 				    n_vec - first_vec, total_len);
diff --git a/fs/compat.c b/fs/compat.c
index c9d1472e65c5..075d0509970d 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -792,8 +792,10 @@ static int compat_fillonedir(void *__buf, const char *name, int namlen,
 	if (buf->result)
 		return -EINVAL;
 	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
+	}
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -862,8 +864,10 @@ static int compat_filldir(void *__buf, const char *name, int namlen,
 	if (reclen > buf->count)
 		return -EINVAL;
 	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
+	}
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 7a8db78a91d2..8e93341f3e82 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -1311,16 +1311,18 @@ static int configfs_rmdir(struct inode *dir, struct dentry *dentry)
 	 * Ensure that no racing symlink() will make detach_prep() fail while
 	 * the new link is temporarily attached
 	 */
-	mutex_lock(&configfs_symlink_mutex);
-	spin_lock(&configfs_dirent_lock);
 	do {
 		struct mutex *wait_mutex;
 
+		mutex_lock(&configfs_symlink_mutex);
+		spin_lock(&configfs_dirent_lock);
 		ret = configfs_detach_prep(dentry, &wait_mutex);
-		if (ret) {
+		if (ret)
 			configfs_detach_rollback(dentry);
-			spin_unlock(&configfs_dirent_lock);
-			mutex_unlock(&configfs_symlink_mutex);
+		spin_unlock(&configfs_dirent_lock);
+		mutex_unlock(&configfs_symlink_mutex);
+
+		if (ret) {
 			if (ret != -EAGAIN) {
 				config_item_put(parent_item);
 				return ret;
@@ -1329,13 +1331,8 @@ static int configfs_rmdir(struct inode *dir, struct dentry *dentry)
 			/* Wait until the racing operation terminates */
 			mutex_lock(wait_mutex);
 			mutex_unlock(wait_mutex);
-
-			mutex_lock(&configfs_symlink_mutex);
-			spin_lock(&configfs_dirent_lock);
 		}
 	} while (ret == -EAGAIN);
-	spin_unlock(&configfs_dirent_lock);
-	mutex_unlock(&configfs_symlink_mutex);
 
 	/* Get a working ref for the duration of this function */
 	item = configfs_get_config_item(dentry);
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c
index 0c3b618c15b3..f40423eb1a14 100644
--- a/fs/cramfs/inode.c
+++ b/fs/cramfs/inode.c
@@ -43,58 +43,13 @@ static DEFINE_MUTEX(read_mutex);
 static int cramfs_iget5_test(struct inode *inode, void *opaque)
 {
 	struct cramfs_inode *cramfs_inode = opaque;
-
-	if (inode->i_ino != CRAMINO(cramfs_inode))
-		return 0; /* does not match */
-
-	if (inode->i_ino != 1)
-		return 1;
-
-	/* all empty directories, char, block, pipe, and sock, share inode #1 */
-
-	if ((inode->i_mode != cramfs_inode->mode) ||
-	    (inode->i_gid != cramfs_inode->gid) ||
-	    (inode->i_uid != cramfs_inode->uid))
-		return 0; /* does not match */
-
-	if ((S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) &&
-	    (inode->i_rdev != old_decode_dev(cramfs_inode->size)))
-		return 0; /* does not match */
-
-	return 1; /* matches */
+	return inode->i_ino == CRAMINO(cramfs_inode) && inode->i_ino != 1;
 }
 
 static int cramfs_iget5_set(struct inode *inode, void *opaque)
 {
-	static struct timespec zerotime;
 	struct cramfs_inode *cramfs_inode = opaque;
-	inode->i_mode = cramfs_inode->mode;
-	inode->i_uid = cramfs_inode->uid;
-	inode->i_size = cramfs_inode->size;
-	inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
-	inode->i_gid = cramfs_inode->gid;
-	/* Struct copy intentional */
-	inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime;
 	inode->i_ino = CRAMINO(cramfs_inode);
-	/* inode->i_nlink is left 1 - arguably wrong for directories,
-	   but it's the best we can do without reading the directory
-           contents.  1 yields the right result in GNU find, even
-	   without -noleaf option. */
-	if (S_ISREG(inode->i_mode)) {
-		inode->i_fop = &generic_ro_fops;
-		inode->i_data.a_ops = &cramfs_aops;
-	} else if (S_ISDIR(inode->i_mode)) {
-		inode->i_op = &cramfs_dir_inode_operations;
-		inode->i_fop = &cramfs_directory_operations;
-	} else if (S_ISLNK(inode->i_mode)) {
-		inode->i_op = &page_symlink_inode_operations;
-		inode->i_data.a_ops = &cramfs_aops;
-	} else {
-		inode->i_size = 0;
-		inode->i_blocks = 0;
-		init_special_inode(inode, inode->i_mode,
-			old_decode_dev(cramfs_inode->size));
-	}
 	return 0;
 }
 
@@ -104,12 +59,48 @@ static struct inode *get_cramfs_inode(struct super_block *sb,
 	struct inode *inode = iget5_locked(sb, CRAMINO(cramfs_inode),
 					    cramfs_iget5_test, cramfs_iget5_set,
 					    cramfs_inode);
+	static struct timespec zerotime;
+
 	if (inode && (inode->i_state & I_NEW)) {
+		inode->i_mode = cramfs_inode->mode;
+		inode->i_uid = cramfs_inode->uid;
+		inode->i_size = cramfs_inode->size;
+		inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1;
+		inode->i_gid = cramfs_inode->gid;
+		/* Struct copy intentional */
+		inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime;
+		/* inode->i_nlink is left 1 - arguably wrong for directories,
+		   but it's the best we can do without reading the directory
+		   contents.  1 yields the right result in GNU find, even
+		   without -noleaf option. */
+		if (S_ISREG(inode->i_mode)) {
+			inode->i_fop = &generic_ro_fops;
+			inode->i_data.a_ops = &cramfs_aops;
+		} else if (S_ISDIR(inode->i_mode)) {
+			inode->i_op = &cramfs_dir_inode_operations;
+			inode->i_fop = &cramfs_directory_operations;
+		} else if (S_ISLNK(inode->i_mode)) {
+			inode->i_op = &page_symlink_inode_operations;
+			inode->i_data.a_ops = &cramfs_aops;
+		} else {
+			inode->i_size = 0;
+			inode->i_blocks = 0;
+			init_special_inode(inode, inode->i_mode,
+				old_decode_dev(cramfs_inode->size));
+		}
 		unlock_new_inode(inode);
 	}
 	return inode;
 }
 
+static void cramfs_drop_inode(struct inode *inode)
+{
+	if (inode->i_ino == 1)
+		generic_delete_inode(inode);
+	else
+		generic_drop_inode(inode);
+}
+
 /*
  * We have our own block cache: don't fill up the buffer cache
  * with the rom-image, because the way the filesystem is set
@@ -534,6 +525,7 @@ static const struct super_operations cramfs_ops = {
 	.put_super	= cramfs_put_super,
 	.remount_fs	= cramfs_remount,
 	.statfs		= cramfs_statfs,
+	.drop_inode	= cramfs_drop_inode,
 };
 
 static int cramfs_get_sb(struct file_system_type *fs_type,
diff --git a/fs/dcache.c b/fs/dcache.c
index 101663d15e9f..80e93956aced 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1236,7 +1236,7 @@ struct dentry *d_splice_alias(struct inode *inode, struct dentry *dentry)
  * If no entry exists with the exact case name, allocate new dentry with
  * the exact case, and return the spliced entry.
  */
-struct dentry *d_add_ci(struct inode *inode, struct dentry *dentry,
+struct dentry *d_add_ci(struct dentry *dentry, struct inode *inode,
 			struct qstr *name)
 {
 	int error;
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index c4e7d721bd8d..89d2fb7b991a 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -30,16 +30,16 @@
 
 static struct config_group *space_list;
 static struct config_group *comm_list;
-static struct comm *local_comm;
+static struct dlm_comm *local_comm;
 
-struct clusters;
-struct cluster;
-struct spaces;
-struct space;
-struct comms;
-struct comm;
-struct nodes;
-struct node;
+struct dlm_clusters;
+struct dlm_cluster;
+struct dlm_spaces;
+struct dlm_space;
+struct dlm_comms;
+struct dlm_comm;
+struct dlm_nodes;
+struct dlm_node;
 
 static struct config_group *make_cluster(struct config_group *, const char *);
 static void drop_cluster(struct config_group *, struct config_item *);
@@ -68,17 +68,22 @@ static ssize_t show_node(struct config_item *i, struct configfs_attribute *a,
 static ssize_t store_node(struct config_item *i, struct configfs_attribute *a,
 			  const char *buf, size_t len);
 
-static ssize_t comm_nodeid_read(struct comm *cm, char *buf);
-static ssize_t comm_nodeid_write(struct comm *cm, const char *buf, size_t len);
-static ssize_t comm_local_read(struct comm *cm, char *buf);
-static ssize_t comm_local_write(struct comm *cm, const char *buf, size_t len);
-static ssize_t comm_addr_write(struct comm *cm, const char *buf, size_t len);
-static ssize_t node_nodeid_read(struct node *nd, char *buf);
-static ssize_t node_nodeid_write(struct node *nd, const char *buf, size_t len);
-static ssize_t node_weight_read(struct node *nd, char *buf);
-static ssize_t node_weight_write(struct node *nd, const char *buf, size_t len);
-
-struct cluster {
+static ssize_t comm_nodeid_read(struct dlm_comm *cm, char *buf);
+static ssize_t comm_nodeid_write(struct dlm_comm *cm, const char *buf,
+				size_t len);
+static ssize_t comm_local_read(struct dlm_comm *cm, char *buf);
+static ssize_t comm_local_write(struct dlm_comm *cm, const char *buf,
+				size_t len);
+static ssize_t comm_addr_write(struct dlm_comm *cm, const char *buf,
+				size_t len);
+static ssize_t node_nodeid_read(struct dlm_node *nd, char *buf);
+static ssize_t node_nodeid_write(struct dlm_node *nd, const char *buf,
+				size_t len);
+static ssize_t node_weight_read(struct dlm_node *nd, char *buf);
+static ssize_t node_weight_write(struct dlm_node *nd, const char *buf,
+				size_t len);
+
+struct dlm_cluster {
 	struct config_group group;
 	unsigned int cl_tcp_port;
 	unsigned int cl_buffer_size;
@@ -109,11 +114,11 @@ enum {
 
 struct cluster_attribute {
 	struct configfs_attribute attr;
-	ssize_t (*show)(struct cluster *, char *);
-	ssize_t (*store)(struct cluster *, const char *, size_t);
+	ssize_t (*show)(struct dlm_cluster *, char *);
+	ssize_t (*store)(struct dlm_cluster *, const char *, size_t);
 };
 
-static ssize_t cluster_set(struct cluster *cl, unsigned int *cl_field,
+static ssize_t cluster_set(struct dlm_cluster *cl, unsigned int *cl_field,
 			   int *info_field, int check_zero,
 			   const char *buf, size_t len)
 {
@@ -134,12 +139,12 @@ static ssize_t cluster_set(struct cluster *cl, unsigned int *cl_field,
 }
 
 #define CLUSTER_ATTR(name, check_zero)                                        \
-static ssize_t name##_write(struct cluster *cl, const char *buf, size_t len)  \
+static ssize_t name##_write(struct dlm_cluster *cl, const char *buf, size_t len) \
 {                                                                             \
 	return cluster_set(cl, &cl->cl_##name, &dlm_config.ci_##name,         \
 			   check_zero, buf, len);                             \
 }                                                                             \
-static ssize_t name##_read(struct cluster *cl, char *buf)                     \
+static ssize_t name##_read(struct dlm_cluster *cl, char *buf)                 \
 {                                                                             \
 	return snprintf(buf, PAGE_SIZE, "%u\n", cl->cl_##name);               \
 }                                                                             \
@@ -181,8 +186,8 @@ enum {
 
 struct comm_attribute {
 	struct configfs_attribute attr;
-	ssize_t (*show)(struct comm *, char *);
-	ssize_t (*store)(struct comm *, const char *, size_t);
+	ssize_t (*show)(struct dlm_comm *, char *);
+	ssize_t (*store)(struct dlm_comm *, const char *, size_t);
 };
 
 static struct comm_attribute comm_attr_nodeid = {
@@ -222,8 +227,8 @@ enum {
 
 struct node_attribute {
 	struct configfs_attribute attr;
-	ssize_t (*show)(struct node *, char *);
-	ssize_t (*store)(struct node *, const char *, size_t);
+	ssize_t (*show)(struct dlm_node *, char *);
+	ssize_t (*store)(struct dlm_node *, const char *, size_t);
 };
 
 static struct node_attribute node_attr_nodeid = {
@@ -248,26 +253,26 @@ static struct configfs_attribute *node_attrs[] = {
 	NULL,
 };
 
-struct clusters {
+struct dlm_clusters {
 	struct configfs_subsystem subsys;
 };
 
-struct spaces {
+struct dlm_spaces {
 	struct config_group ss_group;
 };
 
-struct space {
+struct dlm_space {
 	struct config_group group;
 	struct list_head members;
 	struct mutex members_lock;
 	int members_count;
 };
 
-struct comms {
+struct dlm_comms {
 	struct config_group cs_group;
 };
 
-struct comm {
+struct dlm_comm {
 	struct config_item item;
 	int nodeid;
 	int local;
@@ -275,11 +280,11 @@ struct comm {
 	struct sockaddr_storage *addr[DLM_MAX_ADDR_COUNT];
 };
 
-struct nodes {
+struct dlm_nodes {
 	struct config_group ns_group;
 };
 
-struct node {
+struct dlm_node {
 	struct config_item item;
 	struct list_head list; /* space->members */
 	int nodeid;
@@ -372,38 +377,40 @@ static struct config_item_type node_type = {
 	.ct_owner = THIS_MODULE,
 };
 
-static struct cluster *to_cluster(struct config_item *i)
+static struct dlm_cluster *to_cluster(struct config_item *i)
 {
-	return i ? container_of(to_config_group(i), struct cluster, group):NULL;
+	return i ? container_of(to_config_group(i), struct dlm_cluster, group) :
+		   NULL;
 }
 
-static struct space *to_space(struct config_item *i)
+static struct dlm_space *to_space(struct config_item *i)
 {
-	return i ? container_of(to_config_group(i), struct space, group) : NULL;
+	return i ? container_of(to_config_group(i), struct dlm_space, group) :
+		   NULL;
 }
 
-static struct comm *to_comm(struct config_item *i)
+static struct dlm_comm *to_comm(struct config_item *i)
 {
-	return i ? container_of(i, struct comm, item) : NULL;
+	return i ? container_of(i, struct dlm_comm, item) : NULL;
 }
 
-static struct node *to_node(struct config_item *i)
+static struct dlm_node *to_node(struct config_item *i)
 {
-	return i ? container_of(i, struct node, item) : NULL;
+	return i ? container_of(i, struct dlm_node, item) : NULL;
 }
 
 static struct config_group *make_cluster(struct config_group *g,
 					 const char *name)
 {
-	struct cluster *cl = NULL;
-	struct spaces *sps = NULL;
-	struct comms *cms = NULL;
+	struct dlm_cluster *cl = NULL;
+	struct dlm_spaces *sps = NULL;
+	struct dlm_comms *cms = NULL;
 	void *gps = NULL;
 
-	cl = kzalloc(sizeof(struct cluster), GFP_KERNEL);
+	cl = kzalloc(sizeof(struct dlm_cluster), GFP_KERNEL);
 	gps = kcalloc(3, sizeof(struct config_group *), GFP_KERNEL);
-	sps = kzalloc(sizeof(struct spaces), GFP_KERNEL);
-	cms = kzalloc(sizeof(struct comms), GFP_KERNEL);
+	sps = kzalloc(sizeof(struct dlm_spaces), GFP_KERNEL);
+	cms = kzalloc(sizeof(struct dlm_comms), GFP_KERNEL);
 
 	if (!cl || !gps || !sps || !cms)
 		goto fail;
@@ -443,7 +450,7 @@ static struct config_group *make_cluster(struct config_group *g,
 
 static void drop_cluster(struct config_group *g, struct config_item *i)
 {
-	struct cluster *cl = to_cluster(i);
+	struct dlm_cluster *cl = to_cluster(i);
 	struct config_item *tmp;
 	int j;
 
@@ -461,20 +468,20 @@ static void drop_cluster(struct config_group *g, struct config_item *i)
 
 static void release_cluster(struct config_item *i)
 {
-	struct cluster *cl = to_cluster(i);
+	struct dlm_cluster *cl = to_cluster(i);
 	kfree(cl->group.default_groups);
 	kfree(cl);
 }
 
 static struct config_group *make_space(struct config_group *g, const char *name)
 {
-	struct space *sp = NULL;
-	struct nodes *nds = NULL;
+	struct dlm_space *sp = NULL;
+	struct dlm_nodes *nds = NULL;
 	void *gps = NULL;
 
-	sp = kzalloc(sizeof(struct space), GFP_KERNEL);
+	sp = kzalloc(sizeof(struct dlm_space), GFP_KERNEL);
 	gps = kcalloc(2, sizeof(struct config_group *), GFP_KERNEL);
-	nds = kzalloc(sizeof(struct nodes), GFP_KERNEL);
+	nds = kzalloc(sizeof(struct dlm_nodes), GFP_KERNEL);
 
 	if (!sp || !gps || !nds)
 		goto fail;
@@ -500,7 +507,7 @@ static struct config_group *make_space(struct config_group *g, const char *name)
 
 static void drop_space(struct config_group *g, struct config_item *i)
 {
-	struct space *sp = to_space(i);
+	struct dlm_space *sp = to_space(i);
 	struct config_item *tmp;
 	int j;
 
@@ -517,16 +524,16 @@ static void drop_space(struct config_group *g, struct config_item *i)
 
 static void release_space(struct config_item *i)
 {
-	struct space *sp = to_space(i);
+	struct dlm_space *sp = to_space(i);
 	kfree(sp->group.default_groups);
 	kfree(sp);
 }
 
 static struct config_item *make_comm(struct config_group *g, const char *name)
 {
-	struct comm *cm;
+	struct dlm_comm *cm;
 
-	cm = kzalloc(sizeof(struct comm), GFP_KERNEL);
+	cm = kzalloc(sizeof(struct dlm_comm), GFP_KERNEL);
 	if (!cm)
 		return ERR_PTR(-ENOMEM);
 
@@ -539,7 +546,7 @@ static struct config_item *make_comm(struct config_group *g, const char *name)
 
 static void drop_comm(struct config_group *g, struct config_item *i)
 {
-	struct comm *cm = to_comm(i);
+	struct dlm_comm *cm = to_comm(i);
 	if (local_comm == cm)
 		local_comm = NULL;
 	dlm_lowcomms_close(cm->nodeid);
@@ -550,16 +557,16 @@ static void drop_comm(struct config_group *g, struct config_item *i)
 
 static void release_comm(struct config_item *i)
 {
-	struct comm *cm = to_comm(i);
+	struct dlm_comm *cm = to_comm(i);
 	kfree(cm);
 }
 
 static struct config_item *make_node(struct config_group *g, const char *name)
 {
-	struct space *sp = to_space(g->cg_item.ci_parent);
-	struct node *nd;
+	struct dlm_space *sp = to_space(g->cg_item.ci_parent);
+	struct dlm_node *nd;
 
-	nd = kzalloc(sizeof(struct node), GFP_KERNEL);
+	nd = kzalloc(sizeof(struct dlm_node), GFP_KERNEL);
 	if (!nd)
 		return ERR_PTR(-ENOMEM);
 
@@ -578,8 +585,8 @@ static struct config_item *make_node(struct config_group *g, const char *name)
 
 static void drop_node(struct config_group *g, struct config_item *i)
 {
-	struct space *sp = to_space(g->cg_item.ci_parent);
-	struct node *nd = to_node(i);
+	struct dlm_space *sp = to_space(g->cg_item.ci_parent);
+	struct dlm_node *nd = to_node(i);
 
 	mutex_lock(&sp->members_lock);
 	list_del(&nd->list);
@@ -591,11 +598,11 @@ static void drop_node(struct config_group *g, struct config_item *i)
 
 static void release_node(struct config_item *i)
 {
-	struct node *nd = to_node(i);
+	struct dlm_node *nd = to_node(i);
 	kfree(nd);
 }
 
-static struct clusters clusters_root = {
+static struct dlm_clusters clusters_root = {
 	.subsys = {
 		.su_group = {
 			.cg_item = {
@@ -625,7 +632,7 @@ void dlm_config_exit(void)
 static ssize_t show_cluster(struct config_item *i, struct configfs_attribute *a,
 			    char *buf)
 {
-	struct cluster *cl = to_cluster(i);
+	struct dlm_cluster *cl = to_cluster(i);
 	struct cluster_attribute *cla =
 			container_of(a, struct cluster_attribute, attr);
 	return cla->show ? cla->show(cl, buf) : 0;
@@ -635,7 +642,7 @@ static ssize_t store_cluster(struct config_item *i,
 			     struct configfs_attribute *a,
 			     const char *buf, size_t len)
 {
-	struct cluster *cl = to_cluster(i);
+	struct dlm_cluster *cl = to_cluster(i);
 	struct cluster_attribute *cla =
 		container_of(a, struct cluster_attribute, attr);
 	return cla->store ? cla->store(cl, buf, len) : -EINVAL;
@@ -644,7 +651,7 @@ static ssize_t store_cluster(struct config_item *i,
 static ssize_t show_comm(struct config_item *i, struct configfs_attribute *a,
 			 char *buf)
 {
-	struct comm *cm = to_comm(i);
+	struct dlm_comm *cm = to_comm(i);
 	struct comm_attribute *cma =
 			container_of(a, struct comm_attribute, attr);
 	return cma->show ? cma->show(cm, buf) : 0;
@@ -653,29 +660,31 @@ static ssize_t show_comm(struct config_item *i, struct configfs_attribute *a,
 static ssize_t store_comm(struct config_item *i, struct configfs_attribute *a,
 			  const char *buf, size_t len)
 {
-	struct comm *cm = to_comm(i);
+	struct dlm_comm *cm = to_comm(i);
 	struct comm_attribute *cma =
 		container_of(a, struct comm_attribute, attr);
 	return cma->store ? cma->store(cm, buf, len) : -EINVAL;
 }
 
-static ssize_t comm_nodeid_read(struct comm *cm, char *buf)
+static ssize_t comm_nodeid_read(struct dlm_comm *cm, char *buf)
 {
 	return sprintf(buf, "%d\n", cm->nodeid);
 }
 
-static ssize_t comm_nodeid_write(struct comm *cm, const char *buf, size_t len)
+static ssize_t comm_nodeid_write(struct dlm_comm *cm, const char *buf,
+				 size_t len)
 {
 	cm->nodeid = simple_strtol(buf, NULL, 0);
 	return len;
 }
 
-static ssize_t comm_local_read(struct comm *cm, char *buf)
+static ssize_t comm_local_read(struct dlm_comm *cm, char *buf)
 {
 	return sprintf(buf, "%d\n", cm->local);
 }
 
-static ssize_t comm_local_write(struct comm *cm, const char *buf, size_t len)
+static ssize_t comm_local_write(struct dlm_comm *cm, const char *buf,
+				size_t len)
 {
 	cm->local= simple_strtol(buf, NULL, 0);
 	if (cm->local && !local_comm)
@@ -683,7 +692,7 @@ static ssize_t comm_local_write(struct comm *cm, const char *buf, size_t len)
 	return len;
 }
 
-static ssize_t comm_addr_write(struct comm *cm, const char *buf, size_t len)
+static ssize_t comm_addr_write(struct dlm_comm *cm, const char *buf, size_t len)
 {
 	struct sockaddr_storage *addr;
 
@@ -705,7 +714,7 @@ static ssize_t comm_addr_write(struct comm *cm, const char *buf, size_t len)
 static ssize_t show_node(struct config_item *i, struct configfs_attribute *a,
 			 char *buf)
 {
-	struct node *nd = to_node(i);
+	struct dlm_node *nd = to_node(i);
 	struct node_attribute *nda =
 			container_of(a, struct node_attribute, attr);
 	return nda->show ? nda->show(nd, buf) : 0;
@@ -714,29 +723,31 @@ static ssize_t show_node(struct config_item *i, struct configfs_attribute *a,
 static ssize_t store_node(struct config_item *i, struct configfs_attribute *a,
 			  const char *buf, size_t len)
 {
-	struct node *nd = to_node(i);
+	struct dlm_node *nd = to_node(i);
 	struct node_attribute *nda =
 		container_of(a, struct node_attribute, attr);
 	return nda->store ? nda->store(nd, buf, len) : -EINVAL;
 }
 
-static ssize_t node_nodeid_read(struct node *nd, char *buf)
+static ssize_t node_nodeid_read(struct dlm_node *nd, char *buf)
 {
 	return sprintf(buf, "%d\n", nd->nodeid);
 }
 
-static ssize_t node_nodeid_write(struct node *nd, const char *buf, size_t len)
+static ssize_t node_nodeid_write(struct dlm_node *nd, const char *buf,
+				 size_t len)
 {
 	nd->nodeid = simple_strtol(buf, NULL, 0);
 	return len;
 }
 
-static ssize_t node_weight_read(struct node *nd, char *buf)
+static ssize_t node_weight_read(struct dlm_node *nd, char *buf)
 {
 	return sprintf(buf, "%d\n", nd->weight);
 }
 
-static ssize_t node_weight_write(struct node *nd, const char *buf, size_t len)
+static ssize_t node_weight_write(struct dlm_node *nd, const char *buf,
+				 size_t len)
 {
 	nd->weight = simple_strtol(buf, NULL, 0);
 	return len;
@@ -746,7 +757,7 @@ static ssize_t node_weight_write(struct node *nd, const char *buf, size_t len)
  * Functions for the dlm to get the info that's been configured
  */
 
-static struct space *get_space(char *name)
+static struct dlm_space *get_space(char *name)
 {
 	struct config_item *i;
 
@@ -760,15 +771,15 @@ static struct space *get_space(char *name)
 	return to_space(i);
 }
 
-static void put_space(struct space *sp)
+static void put_space(struct dlm_space *sp)
 {
 	config_item_put(&sp->group.cg_item);
 }
 
-static struct comm *get_comm(int nodeid, struct sockaddr_storage *addr)
+static struct dlm_comm *get_comm(int nodeid, struct sockaddr_storage *addr)
 {
 	struct config_item *i;
-	struct comm *cm = NULL;
+	struct dlm_comm *cm = NULL;
 	int found = 0;
 
 	if (!comm_list)
@@ -801,7 +812,7 @@ static struct comm *get_comm(int nodeid, struct sockaddr_storage *addr)
 	return cm;
 }
 
-static void put_comm(struct comm *cm)
+static void put_comm(struct dlm_comm *cm)
 {
 	config_item_put(&cm->item);
 }
@@ -810,8 +821,8 @@ static void put_comm(struct comm *cm)
 int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
 		    int **new_out, int *new_count_out)
 {
-	struct space *sp;
-	struct node *nd;
+	struct dlm_space *sp;
+	struct dlm_node *nd;
 	int i = 0, rv = 0, ids_count = 0, new_count = 0;
 	int *ids, *new;
 
@@ -874,8 +885,8 @@ int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
 
 int dlm_node_weight(char *lsname, int nodeid)
 {
-	struct space *sp;
-	struct node *nd;
+	struct dlm_space *sp;
+	struct dlm_node *nd;
 	int w = -EEXIST;
 
 	sp = get_space(lsname);
@@ -897,7 +908,7 @@ int dlm_node_weight(char *lsname, int nodeid)
 
 int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr)
 {
-	struct comm *cm = get_comm(nodeid, NULL);
+	struct dlm_comm *cm = get_comm(nodeid, NULL);
 	if (!cm)
 		return -EEXIST;
 	if (!cm->addr_count)
@@ -909,7 +920,7 @@ int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr)
 
 int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid)
 {
-	struct comm *cm = get_comm(0, addr);
+	struct dlm_comm *cm = get_comm(0, addr);
 	if (!cm)
 		return -EEXIST;
 	*nodeid = cm->nodeid;
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index 929e48ae7591..34f14a14fb4e 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -527,8 +527,10 @@ static ssize_t device_write(struct file *file, const char __user *buf,
 		k32buf = (struct dlm_write_request32 *)kbuf;
 		kbuf = kmalloc(count + 1 + (sizeof(struct dlm_write_request) -
 			       sizeof(struct dlm_write_request32)), GFP_KERNEL);
-		if (!kbuf)
+		if (!kbuf) {
+			kfree(k32buf);
 			return -ENOMEM;
+		}
 
 		if (proc)
 			set_bit(DLM_PROC_FLAGS_COMPAT, &proc->flags);
@@ -539,8 +541,10 @@ static ssize_t device_write(struct file *file, const char __user *buf,
 
 	/* do we really need this? can a write happen after a close? */
 	if ((kbuf->cmd == DLM_USER_LOCK || kbuf->cmd == DLM_USER_UNLOCK) &&
-	    (proc && test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags)))
-		return -EINVAL;
+	    (proc && test_bit(DLM_PROC_FLAGS_CLOSING, &proc->flags))) {
+		error = -EINVAL;
+		goto out_free;
+	}
 
 	sigfillset(&allsigs);
 	sigprocmask(SIG_BLOCK, &allsigs, &tmpsig);
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index 3a404e7fad53..291abb11e20e 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -74,8 +74,7 @@ struct dentry *efs_lookup(struct inode *dir, struct dentry *dentry, struct namei
 	}
 	unlock_kernel();
 
-	d_add(dentry, inode);
-	return NULL;
+	return d_splice_alias(inode, dentry);
 }
 
 static struct inode *efs_nfs_get_inode(struct super_block *sb, u64 ino,
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 0c87474f7917..7cc0eb756b55 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1041,10 +1041,7 @@ retry:
 }
 
 /*
- * It opens an eventpoll file descriptor. The "size" parameter is there
- * for historical reasons, when epoll was using an hash instead of an
- * RB tree. With the current implementation, the "size" parameter is ignored
- * (besides sanity checks).
+ * Open an eventpoll file descriptor.
  */
 asmlinkage long sys_epoll_create1(int flags)
 {
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index c7d04e165446..694ed6fadcc8 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -40,34 +40,35 @@ ext4_acl_from_disk(const void *value, size_t size)
 	acl = posix_acl_alloc(count, GFP_NOFS);
 	if (!acl)
 		return ERR_PTR(-ENOMEM);
-	for (n=0; n < count; n++) {
+	for (n = 0; n < count; n++) {
 		ext4_acl_entry *entry =
 			(ext4_acl_entry *)value;
 		if ((char *)value + sizeof(ext4_acl_entry_short) > end)
 			goto fail;
 		acl->a_entries[n].e_tag  = le16_to_cpu(entry->e_tag);
 		acl->a_entries[n].e_perm = le16_to_cpu(entry->e_perm);
-		switch(acl->a_entries[n].e_tag) {
-			case ACL_USER_OBJ:
-			case ACL_GROUP_OBJ:
-			case ACL_MASK:
-			case ACL_OTHER:
-				value = (char *)value +
-					sizeof(ext4_acl_entry_short);
-				acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
-				break;
-
-			case ACL_USER:
-			case ACL_GROUP:
-				value = (char *)value + sizeof(ext4_acl_entry);
-				if ((char *)value > end)
-					goto fail;
-				acl->a_entries[n].e_id =
-					le32_to_cpu(entry->e_id);
-				break;
-
-			default:
+
+		switch (acl->a_entries[n].e_tag) {
+		case ACL_USER_OBJ:
+		case ACL_GROUP_OBJ:
+		case ACL_MASK:
+		case ACL_OTHER:
+			value = (char *)value +
+				sizeof(ext4_acl_entry_short);
+			acl->a_entries[n].e_id = ACL_UNDEFINED_ID;
+			break;
+
+		case ACL_USER:
+		case ACL_GROUP:
+			value = (char *)value + sizeof(ext4_acl_entry);
+			if ((char *)value > end)
 				goto fail;
+			acl->a_entries[n].e_id =
+				le32_to_cpu(entry->e_id);
+			break;
+
+		default:
+			goto fail;
 		}
 	}
 	if (value != end)
@@ -96,27 +97,26 @@ ext4_acl_to_disk(const struct posix_acl *acl, size_t *size)
 		return ERR_PTR(-ENOMEM);
 	ext_acl->a_version = cpu_to_le32(EXT4_ACL_VERSION);
 	e = (char *)ext_acl + sizeof(ext4_acl_header);
-	for (n=0; n < acl->a_count; n++) {
+	for (n = 0; n < acl->a_count; n++) {
 		ext4_acl_entry *entry = (ext4_acl_entry *)e;
 		entry->e_tag  = cpu_to_le16(acl->a_entries[n].e_tag);
 		entry->e_perm = cpu_to_le16(acl->a_entries[n].e_perm);
-		switch(acl->a_entries[n].e_tag) {
-			case ACL_USER:
-			case ACL_GROUP:
-				entry->e_id =
-					cpu_to_le32(acl->a_entries[n].e_id);
-				e += sizeof(ext4_acl_entry);
-				break;
-
-			case ACL_USER_OBJ:
-			case ACL_GROUP_OBJ:
-			case ACL_MASK:
-			case ACL_OTHER:
-				e += sizeof(ext4_acl_entry_short);
-				break;
-
-			default:
-				goto fail;
+		switch (acl->a_entries[n].e_tag) {
+		case ACL_USER:
+		case ACL_GROUP:
+			entry->e_id = cpu_to_le32(acl->a_entries[n].e_id);
+			e += sizeof(ext4_acl_entry);
+			break;
+
+		case ACL_USER_OBJ:
+		case ACL_GROUP_OBJ:
+		case ACL_MASK:
+		case ACL_OTHER:
+			e += sizeof(ext4_acl_entry_short);
+			break;
+
+		default:
+			goto fail;
 		}
 	}
 	return (char *)ext_acl;
@@ -167,23 +167,23 @@ ext4_get_acl(struct inode *inode, int type)
 	if (!test_opt(inode->i_sb, POSIX_ACL))
 		return NULL;
 
-	switch(type) {
-		case ACL_TYPE_ACCESS:
-			acl = ext4_iget_acl(inode, &ei->i_acl);
-			if (acl != EXT4_ACL_NOT_CACHED)
-				return acl;
-			name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
-			break;
-
-		case ACL_TYPE_DEFAULT:
-			acl = ext4_iget_acl(inode, &ei->i_default_acl);
-			if (acl != EXT4_ACL_NOT_CACHED)
-				return acl;
-			name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
-			break;
-
-		default:
-			return ERR_PTR(-EINVAL);
+	switch (type) {
+	case ACL_TYPE_ACCESS:
+		acl = ext4_iget_acl(inode, &ei->i_acl);
+		if (acl != EXT4_ACL_NOT_CACHED)
+			return acl;
+		name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
+		break;
+
+	case ACL_TYPE_DEFAULT:
+		acl = ext4_iget_acl(inode, &ei->i_default_acl);
+		if (acl != EXT4_ACL_NOT_CACHED)
+			return acl;
+		name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
+		break;
+
+	default:
+		return ERR_PTR(-EINVAL);
 	}
 	retval = ext4_xattr_get(inode, name_index, "", NULL, 0);
 	if (retval > 0) {
@@ -201,14 +201,14 @@ ext4_get_acl(struct inode *inode, int type)
 	kfree(value);
 
 	if (!IS_ERR(acl)) {
-		switch(type) {
-			case ACL_TYPE_ACCESS:
-				ext4_iset_acl(inode, &ei->i_acl, acl);
-				break;
-
-			case ACL_TYPE_DEFAULT:
-				ext4_iset_acl(inode, &ei->i_default_acl, acl);
-				break;
+		switch (type) {
+		case ACL_TYPE_ACCESS:
+			ext4_iset_acl(inode, &ei->i_acl, acl);
+			break;
+
+		case ACL_TYPE_DEFAULT:
+			ext4_iset_acl(inode, &ei->i_default_acl, acl);
+			break;
 		}
 	}
 	return acl;
@@ -232,31 +232,31 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
 
-	switch(type) {
-		case ACL_TYPE_ACCESS:
-			name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
-			if (acl) {
-				mode_t mode = inode->i_mode;
-				error = posix_acl_equiv_mode(acl, &mode);
-				if (error < 0)
-					return error;
-				else {
-					inode->i_mode = mode;
-					ext4_mark_inode_dirty(handle, inode);
-					if (error == 0)
-						acl = NULL;
-				}
+	switch (type) {
+	case ACL_TYPE_ACCESS:
+		name_index = EXT4_XATTR_INDEX_POSIX_ACL_ACCESS;
+		if (acl) {
+			mode_t mode = inode->i_mode;
+			error = posix_acl_equiv_mode(acl, &mode);
+			if (error < 0)
+				return error;
+			else {
+				inode->i_mode = mode;
+				ext4_mark_inode_dirty(handle, inode);
+				if (error == 0)
+					acl = NULL;
 			}
-			break;
+		}
+		break;
 
-		case ACL_TYPE_DEFAULT:
-			name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
-			if (!S_ISDIR(inode->i_mode))
-				return acl ? -EACCES : 0;
-			break;
+	case ACL_TYPE_DEFAULT:
+		name_index = EXT4_XATTR_INDEX_POSIX_ACL_DEFAULT;
+		if (!S_ISDIR(inode->i_mode))
+			return acl ? -EACCES : 0;
+		break;
 
-		default:
-			return -EINVAL;
+	default:
+		return -EINVAL;
 	}
 	if (acl) {
 		value = ext4_acl_to_disk(acl, &size);
@@ -269,14 +269,14 @@ ext4_set_acl(handle_t *handle, struct inode *inode, int type,
 
 	kfree(value);
 	if (!error) {
-		switch(type) {
-			case ACL_TYPE_ACCESS:
-				ext4_iset_acl(inode, &ei->i_acl, acl);
-				break;
-
-			case ACL_TYPE_DEFAULT:
-				ext4_iset_acl(inode, &ei->i_default_acl, acl);
-				break;
+		switch (type) {
+		case ACL_TYPE_ACCESS:
+			ext4_iset_acl(inode, &ei->i_acl, acl);
+			break;
+
+		case ACL_TYPE_DEFAULT:
+			ext4_iset_acl(inode, &ei->i_default_acl, acl);
+			break;
 		}
 	}
 	return error;
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 495ab21b9832..e9fa960ba6da 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -314,25 +314,28 @@ ext4_read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
 	if (unlikely(!bh)) {
 		ext4_error(sb, __func__,
 			    "Cannot read block bitmap - "
-			    "block_group = %d, block_bitmap = %llu",
-			    (int)block_group, (unsigned long long)bitmap_blk);
+			    "block_group = %lu, block_bitmap = %llu",
+			    block_group, bitmap_blk);
 		return NULL;
 	}
 	if (bh_uptodate_or_lock(bh))
 		return bh;
 
+	spin_lock(sb_bgl_lock(EXT4_SB(sb), block_group));
 	if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
 		ext4_init_block_bitmap(sb, bh, block_group, desc);
 		set_buffer_uptodate(bh);
 		unlock_buffer(bh);
+		spin_unlock(sb_bgl_lock(EXT4_SB(sb), block_group));
 		return bh;
 	}
+	spin_unlock(sb_bgl_lock(EXT4_SB(sb), block_group));
 	if (bh_submit_read(bh) < 0) {
 		put_bh(bh);
 		ext4_error(sb, __func__,
 			    "Cannot read block bitmap - "
-			    "block_group = %d, block_bitmap = %llu",
-			    (int)block_group, (unsigned long long)bitmap_blk);
+			    "block_group = %lu, block_bitmap = %llu",
+			    block_group, bitmap_blk);
 		return NULL;
 	}
 	ext4_valid_block_bitmap(sb, desc, block_group, bh);
@@ -1623,6 +1626,9 @@ ext4_fsblk_t ext4_has_free_blocks(struct ext4_sb_info *sbi,
 		free_blocks =
 			percpu_counter_sum_and_set(&sbi->s_freeblocks_counter);
 #endif
+	if (free_blocks <= root_blocks)
+		/* we don't have free space */
+		return 0;
 	if (free_blocks - root_blocks < nblocks)
 		return free_blocks - root_blocks;
 	return nblocks;
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index d3d23d73c08b..ec8e33b45219 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -411,7 +411,7 @@ static int call_filldir(struct file * filp, void * dirent,
 				get_dtype(sb, fname->file_type));
 		if (error) {
 			filp->f_pos = curr_pos;
-			info->extra_fname = fname->next;
+			info->extra_fname = fname;
 			return error;
 		}
 		fname = fname->next;
@@ -450,11 +450,21 @@ static int ext4_dx_readdir(struct file * filp,
 	 * If there are any leftover names on the hash collision
 	 * chain, return them first.
 	 */
-	if (info->extra_fname &&
-	    call_filldir(filp, dirent, filldir, info->extra_fname))
-		goto finished;
+	if (info->extra_fname) {
+		if (call_filldir(filp, dirent, filldir, info->extra_fname))
+			goto finished;
 
-	if (!info->curr_node)
+		info->extra_fname = NULL;
+		info->curr_node = rb_next(info->curr_node);
+		if (!info->curr_node) {
+			if (info->next_hash == ~0) {
+				filp->f_pos = EXT4_HTREE_EOF;
+				goto finished;
+			}
+			info->curr_hash = info->next_hash;
+			info->curr_minor_hash = 0;
+		}
+	} else if (!info->curr_node)
 		info->curr_node = rb_first(&info->root);
 
 	while (1) {
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 303e41cf7b14..295003241d3d 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1044,7 +1044,6 @@ extern void ext4_mb_update_group_info(struct ext4_group_info *grp,
 
 
 /* inode.c */
-void ext4_da_release_space(struct inode *inode, int used, int to_free);
 int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
 		struct buffer_head *bh, ext4_fsblk_t blocknr);
 struct buffer_head *ext4_getblk(handle_t *, struct inode *,
@@ -1073,6 +1072,8 @@ extern void ext4_set_inode_flags(struct inode *);
 extern void ext4_get_inode_flags(struct ext4_inode_info *);
 extern void ext4_set_aops(struct inode *inode);
 extern int ext4_writepage_trans_blocks(struct inode *);
+extern int ext4_meta_trans_blocks(struct inode *, int nrblocks, int idxblocks);
+extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
 extern int ext4_block_truncate_page(handle_t *handle,
 		struct address_space *mapping, loff_t from);
 extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct page *page);
@@ -1228,6 +1229,8 @@ extern const struct inode_operations ext4_fast_symlink_inode_operations;
 /* extents.c */
 extern int ext4_ext_tree_init(handle_t *handle, struct inode *);
 extern int ext4_ext_writepage_trans_blocks(struct inode *, int);
+extern int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks,
+				       int chunk);
 extern int ext4_ext_get_blocks(handle_t *handle, struct inode *inode,
 			ext4_lblk_t iblock,
 			unsigned long max_blocks, struct buffer_head *bh_result,
diff --git a/fs/ext4/ext4_extents.h b/fs/ext4/ext4_extents.h
index 6c166c0a54b7..d33dc56d6986 100644
--- a/fs/ext4/ext4_extents.h
+++ b/fs/ext4/ext4_extents.h
@@ -216,7 +216,9 @@ extern int ext4_ext_calc_metadata_amount(struct inode *inode, int blocks);
 extern ext4_fsblk_t idx_pblock(struct ext4_extent_idx *);
 extern void ext4_ext_store_pblock(struct ext4_extent *, ext4_fsblk_t);
 extern int ext4_extent_tree_init(handle_t *, struct inode *);
-extern int ext4_ext_calc_credits_for_insert(struct inode *, struct ext4_ext_path *);
+extern int ext4_ext_calc_credits_for_single_extent(struct inode *inode,
+						   int num,
+						   struct ext4_ext_path *path);
 extern int ext4_ext_try_to_merge(struct inode *inode,
 				 struct ext4_ext_path *path,
 				 struct ext4_extent *);
diff --git a/fs/ext4/ext4_jbd2.h b/fs/ext4/ext4_jbd2.h
index eb8bc3afe6e9..b455c685a98b 100644
--- a/fs/ext4/ext4_jbd2.h
+++ b/fs/ext4/ext4_jbd2.h
@@ -51,6 +51,14 @@
 					 EXT4_XATTR_TRANS_BLOCKS - 2 + \
 					 2*EXT4_QUOTA_TRANS_BLOCKS(sb))
 
+/*
+ * Define the number of metadata blocks we need to account to modify data.
+ *
+ * This include super block, inode block, quota blocks and xattr blocks
+ */
+#define EXT4_META_TRANS_BLOCKS(sb)	(EXT4_XATTR_TRANS_BLOCKS + \
+					2*EXT4_QUOTA_TRANS_BLOCKS(sb))
+
 /* Delete operations potentially hit one directory's namespace plus an
  * entire inode, plus arbitrary amounts of bitmap/indirection data.  Be
  * generous.  We can grow the delete transaction later if necessary. */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 42c4c0c892ed..b24d3c53f20c 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -99,7 +99,7 @@ static int ext4_ext_journal_restart(handle_t *handle, int needed)
 	if (handle->h_buffer_credits > needed)
 		return 0;
 	err = ext4_journal_extend(handle, needed);
-	if (err)
+	if (err <= 0)
 		return err;
 	return ext4_journal_restart(handle, needed);
 }
@@ -1441,7 +1441,7 @@ unsigned int ext4_ext_check_overlap(struct inode *inode,
 
 	/*
 	 * get the next allocated block if the extent in the path
-	 * is before the requested block(s) 
+	 * is before the requested block(s)
 	 */
 	if (b2 < b1) {
 		b2 = ext4_ext_next_allocated_block(path);
@@ -1747,54 +1747,61 @@ static int ext4_ext_rm_idx(handle_t *handle, struct inode *inode,
 }
 
 /*
- * ext4_ext_calc_credits_for_insert:
- * This routine returns max. credits that the extent tree can consume.
- * It should be OK for low-performance paths like ->writepage()
- * To allow many writing processes to fit into a single transaction,
- * the caller should calculate credits under i_data_sem and
- * pass the actual path.
+ * ext4_ext_calc_credits_for_single_extent:
+ * This routine returns max. credits that needed to insert an extent
+ * to the extent tree.
+ * When pass the actual path, the caller should calculate credits
+ * under i_data_sem.
  */
-int ext4_ext_calc_credits_for_insert(struct inode *inode,
+int ext4_ext_calc_credits_for_single_extent(struct inode *inode, int nrblocks,
 						struct ext4_ext_path *path)
 {
-	int depth, needed;
-
 	if (path) {
+		int depth = ext_depth(inode);
+		int ret = 0;
+
 		/* probably there is space in leaf? */
-		depth = ext_depth(inode);
 		if (le16_to_cpu(path[depth].p_hdr->eh_entries)
-				< le16_to_cpu(path[depth].p_hdr->eh_max))
-			return 1;
-	}
-
-	/*
-	 * given 32-bit logical block (4294967296 blocks), max. tree
-	 * can be 4 levels in depth -- 4 * 340^4 == 53453440000.
-	 * Let's also add one more level for imbalance.
-	 */
-	depth = 5;
+				< le16_to_cpu(path[depth].p_hdr->eh_max)) {
 
-	/* allocation of new data block(s) */
-	needed = 2;
+			/*
+			 *  There are some space in the leaf tree, no
+			 *  need to account for leaf block credit
+			 *
+			 *  bitmaps and block group descriptor blocks
+			 *  and other metadat blocks still need to be
+			 *  accounted.
+			 */
+			/* 1 bitmap, 1 block group descriptor */
+			ret = 2 + EXT4_META_TRANS_BLOCKS(inode->i_sb);
+		}
+	}
 
-	/*
-	 * tree can be full, so it would need to grow in depth:
-	 * we need one credit to modify old root, credits for
-	 * new root will be added in split accounting
-	 */
-	needed += 1;
+	return ext4_chunk_trans_blocks(inode, nrblocks);
+}
 
-	/*
-	 * Index split can happen, we would need:
-	 *    allocate intermediate indexes (bitmap + group)
-	 *  + change two blocks at each level, but root (already included)
-	 */
-	needed += (depth * 2) + (depth * 2);
+/*
+ * How many index/leaf blocks need to change/allocate to modify nrblocks?
+ *
+ * if nrblocks are fit in a single extent (chunk flag is 1), then
+ * in the worse case, each tree level index/leaf need to be changed
+ * if the tree split due to insert a new extent, then the old tree
+ * index/leaf need to be updated too
+ *
+ * If the nrblocks are discontiguous, they could cause
+ * the whole tree split more than once, but this is really rare.
+ */
+int ext4_ext_index_trans_blocks(struct inode *inode, int nrblocks, int chunk)
+{
+	int index;
+	int depth = ext_depth(inode);
 
-	/* any allocation modifies superblock */
-	needed += 1;
+	if (chunk)
+		index = depth * 2;
+	else
+		index = depth * 3;
 
-	return needed;
+	return index;
 }
 
 static int ext4_remove_blocks(handle_t *handle, struct inode *inode,
@@ -1910,16 +1917,18 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
 			BUG_ON(b != ex_ee_block + ex_ee_len - 1);
 		}
 
-		/* at present, extent can't cross block group: */
-		/* leaf + bitmap + group desc + sb + inode */
-		credits = 5;
+		/*
+		 * 3 for leaf, sb, and inode plus 2 (bmap and group
+		 * descriptor) for each block group; assume two block
+		 * groups plus ex_ee_len/blocks_per_block_group for
+		 * the worst case
+		 */
+		credits = 7 + 2*(ex_ee_len/EXT4_BLOCKS_PER_GROUP(inode->i_sb));
 		if (ex == EXT_FIRST_EXTENT(eh)) {
 			correct_index = 1;
 			credits += (ext_depth(inode)) + 1;
 		}
-#ifdef CONFIG_QUOTA
 		credits += 2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
-#endif
 
 		err = ext4_ext_journal_restart(handle, credits);
 		if (err)
@@ -2323,7 +2332,10 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 		unsigned int newdepth;
 		/* If extent has less than EXT4_EXT_ZERO_LEN zerout directly */
 		if (allocated <= EXT4_EXT_ZERO_LEN) {
-			/* Mark first half uninitialized.
+			/*
+			 * iblock == ee_block is handled by the zerouout
+			 * at the beginning.
+			 * Mark first half uninitialized.
 			 * Mark second half initialized and zero out the
 			 * initialized extent
 			 */
@@ -2346,7 +2358,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 				ex->ee_len   = orig_ex.ee_len;
 				ext4_ext_store_pblock(ex, ext_pblock(&orig_ex));
 				ext4_ext_dirty(handle, inode, path + depth);
-				/* zeroed the full extent */
+				/* blocks available from iblock */
 				return allocated;
 
 			} else if (err)
@@ -2374,6 +2386,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 					err = PTR_ERR(path);
 					return err;
 				}
+				/* get the second half extent details */
 				ex = path[depth].p_ext;
 				err = ext4_ext_get_access(handle, inode,
 								path + depth);
@@ -2403,6 +2416,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 			ext4_ext_store_pblock(ex, ext_pblock(&orig_ex));
 			ext4_ext_dirty(handle, inode, path + depth);
 			/* zeroed the full extent */
+			/* blocks available from iblock */
 			return allocated;
 
 		} else if (err)
@@ -2418,23 +2432,22 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 		 */
 		orig_ex.ee_len = cpu_to_le16(ee_len -
 						ext4_ext_get_actual_len(ex3));
-		if (newdepth != depth) {
-			depth = newdepth;
-			ext4_ext_drop_refs(path);
-			path = ext4_ext_find_extent(inode, iblock, path);
-			if (IS_ERR(path)) {
-				err = PTR_ERR(path);
-				goto out;
-			}
-			eh = path[depth].p_hdr;
-			ex = path[depth].p_ext;
-			if (ex2 != &newex)
-				ex2 = ex;
-
-			err = ext4_ext_get_access(handle, inode, path + depth);
-			if (err)
-				goto out;
+		depth = newdepth;
+		ext4_ext_drop_refs(path);
+		path = ext4_ext_find_extent(inode, iblock, path);
+		if (IS_ERR(path)) {
+			err = PTR_ERR(path);
+			goto out;
 		}
+		eh = path[depth].p_hdr;
+		ex = path[depth].p_ext;
+		if (ex2 != &newex)
+			ex2 = ex;
+
+		err = ext4_ext_get_access(handle, inode, path + depth);
+		if (err)
+			goto out;
+
 		allocated = max_blocks;
 
 		/* If extent has less than EXT4_EXT_ZERO_LEN and we are trying
@@ -2452,6 +2465,7 @@ static int ext4_ext_convert_to_initialized(handle_t *handle,
 			ext4_ext_store_pblock(ex, ext_pblock(&orig_ex));
 			ext4_ext_dirty(handle, inode, path + depth);
 			/* zero out the first half */
+			/* blocks available from iblock */
 			return allocated;
 		}
 	}
@@ -2796,7 +2810,7 @@ void ext4_ext_truncate(struct inode *inode)
 	/*
 	 * probably first extent we're gonna free will be last in block
 	 */
-	err = ext4_writepage_trans_blocks(inode) + 3;
+	err = ext4_writepage_trans_blocks(inode);
 	handle = ext4_journal_start(inode, err);
 	if (IS_ERR(handle))
 		return;
@@ -2810,7 +2824,7 @@ void ext4_ext_truncate(struct inode *inode)
 	down_write(&EXT4_I(inode)->i_data_sem);
 	ext4_ext_invalidate_cache(inode);
 
-	ext4_mb_discard_inode_preallocations(inode);
+	ext4_discard_reservation(inode);
 
 	/*
 	 * TODO: optimization is possible here.
@@ -2849,27 +2863,6 @@ out_stop:
 	ext4_journal_stop(handle);
 }
 
-/*
- * ext4_ext_writepage_trans_blocks:
- * calculate max number of blocks we could modify
- * in order to allocate new block for an inode
- */
-int ext4_ext_writepage_trans_blocks(struct inode *inode, int num)
-{
-	int needed;
-
-	needed = ext4_ext_calc_credits_for_insert(inode, NULL);
-
-	/* caller wants to allocate num blocks, but note it includes sb */
-	needed = needed * num - (num - 1);
-
-#ifdef CONFIG_QUOTA
-	needed += 2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
-#endif
-
-	return needed;
-}
-
 static void ext4_falloc_update_inode(struct inode *inode,
 				int mode, loff_t new_size, int update_ctime)
 {
@@ -2930,10 +2923,9 @@ long ext4_fallocate(struct inode *inode, int mode, loff_t offset, loff_t len)
 	max_blocks = (EXT4_BLOCK_ALIGN(len + offset, blkbits) >> blkbits)
 							- block;
 	/*
-	 * credits to insert 1 extent into extent tree + buffers to be able to
-	 * modify 1 super block, 1 block bitmap and 1 group descriptor.
+	 * credits to insert 1 extent into extent tree
 	 */
-	credits = EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + 3;
+	credits = ext4_chunk_trans_blocks(inode, max_blocks);
 	mutex_lock(&inode->i_mutex);
 retry:
 	while (ret >= 0 && ret < max_blocks) {
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index a92eb305344f..f344834bbf58 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -97,34 +97,44 @@ unsigned ext4_init_inode_bitmap(struct super_block *sb, struct buffer_head *bh,
  * Return buffer_head of bitmap on success or NULL.
  */
 static struct buffer_head *
-read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
+ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
 {
 	struct ext4_group_desc *desc;
 	struct buffer_head *bh = NULL;
+	ext4_fsblk_t bitmap_blk;
 
 	desc = ext4_get_group_desc(sb, block_group, NULL);
 	if (!desc)
-		goto error_out;
-	if (desc->bg_flags & cpu_to_le16(EXT4_BG_INODE_UNINIT)) {
-		bh = sb_getblk(sb, ext4_inode_bitmap(sb, desc));
-		if (!buffer_uptodate(bh)) {
-			lock_buffer(bh);
-			if (!buffer_uptodate(bh)) {
-				ext4_init_inode_bitmap(sb, bh, block_group,
-						       desc);
-				set_buffer_uptodate(bh);
-			}
-			unlock_buffer(bh);
-		}
-	} else {
-		bh = sb_bread(sb, ext4_inode_bitmap(sb, desc));
+		return NULL;
+	bitmap_blk = ext4_inode_bitmap(sb, desc);
+	bh = sb_getblk(sb, bitmap_blk);
+	if (unlikely(!bh)) {
+		ext4_error(sb, __func__,
+			    "Cannot read inode bitmap - "
+			    "block_group = %lu, inode_bitmap = %llu",
+			    block_group, bitmap_blk);
+		return NULL;
 	}
-	if (!bh)
-		ext4_error(sb, "read_inode_bitmap",
+	if (bh_uptodate_or_lock(bh))
+		return bh;
+
+	spin_lock(sb_bgl_lock(EXT4_SB(sb), block_group));
+	if (desc->bg_flags & cpu_to_le16(EXT4_BG_INODE_UNINIT)) {
+		ext4_init_inode_bitmap(sb, bh, block_group, desc);
+		set_buffer_uptodate(bh);
+		unlock_buffer(bh);
+		spin_unlock(sb_bgl_lock(EXT4_SB(sb), block_group));
+		return bh;
+	}
+	spin_unlock(sb_bgl_lock(EXT4_SB(sb), block_group));
+	if (bh_submit_read(bh) < 0) {
+		put_bh(bh);
+		ext4_error(sb, __func__,
 			    "Cannot read inode bitmap - "
 			    "block_group = %lu, inode_bitmap = %llu",
-			    block_group, ext4_inode_bitmap(sb, desc));
-error_out:
+			    block_group, bitmap_blk);
+		return NULL;
+	}
 	return bh;
 }
 
@@ -200,7 +210,7 @@ void ext4_free_inode (handle_t *handle, struct inode * inode)
 	}
 	block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
 	bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
-	bitmap_bh = read_inode_bitmap(sb, block_group);
+	bitmap_bh = ext4_read_inode_bitmap(sb, block_group);
 	if (!bitmap_bh)
 		goto error_return;
 
@@ -341,7 +351,7 @@ find_close_to_parent:
 			goto found_flexbg;
 		}
 
-		if (best_flex < 0 ||
+		if (flex_group[best_flex].free_inodes == 0 ||
 		    (flex_group[i].free_blocks >
 		     flex_group[best_flex].free_blocks &&
 		     flex_group[i].free_inodes))
@@ -623,7 +633,7 @@ got_group:
 			goto fail;
 
 		brelse(bitmap_bh);
-		bitmap_bh = read_inode_bitmap(sb, group);
+		bitmap_bh = ext4_read_inode_bitmap(sb, group);
 		if (!bitmap_bh)
 			goto fail;
 
@@ -728,7 +738,7 @@ got:
 
 			/* When marking the block group with
 			 * ~EXT4_BG_INODE_UNINIT we don't want to depend
-			 * on the value of bg_itable_unsed even though
+			 * on the value of bg_itable_unused even though
 			 * mke2fs could have initialized the same for us.
 			 * Instead we calculated the value below
 			 */
@@ -891,7 +901,7 @@ struct inode *ext4_orphan_get(struct super_block *sb, unsigned long ino)
 
 	block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
 	bit = (ino - 1) % EXT4_INODES_PER_GROUP(sb);
-	bitmap_bh = read_inode_bitmap(sb, block_group);
+	bitmap_bh = ext4_read_inode_bitmap(sb, block_group);
 	if (!bitmap_bh) {
 		ext4_warning(sb, __func__,
 			     "inode bitmap error for orphan %lu", ino);
@@ -969,7 +979,7 @@ unsigned long ext4_count_free_inodes (struct super_block * sb)
 			continue;
 		desc_count += le16_to_cpu(gdp->bg_free_inodes_count);
 		brelse(bitmap_bh);
-		bitmap_bh = read_inode_bitmap(sb, i);
+		bitmap_bh = ext4_read_inode_bitmap(sb, i);
 		if (!bitmap_bh)
 			continue;
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 9843b046c235..7e91913e325b 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -41,6 +41,8 @@
 #include "acl.h"
 #include "ext4_extents.h"
 
+#define MPAGE_DA_EXTENT_TAIL 0x01
+
 static inline int ext4_begin_ordered_truncate(struct inode *inode,
 					      loff_t new_size)
 {
@@ -191,6 +193,7 @@ static int ext4_journal_test_restart(handle_t *handle, struct inode *inode)
 void ext4_delete_inode (struct inode * inode)
 {
 	handle_t *handle;
+	int err;
 
 	if (ext4_should_order_data(inode))
 		ext4_begin_ordered_truncate(inode, 0);
@@ -199,8 +202,9 @@ void ext4_delete_inode (struct inode * inode)
 	if (is_bad_inode(inode))
 		goto no_delete;
 
-	handle = start_transaction(inode);
+	handle = ext4_journal_start(inode, blocks_for_truncate(inode)+3);
 	if (IS_ERR(handle)) {
+		ext4_std_error(inode->i_sb, PTR_ERR(handle));
 		/*
 		 * If we're going to skip the normal cleanup, we still need to
 		 * make sure that the in-core orphan linked list is properly
@@ -213,8 +217,34 @@ void ext4_delete_inode (struct inode * inode)
 	if (IS_SYNC(inode))
 		handle->h_sync = 1;
 	inode->i_size = 0;
+	err = ext4_mark_inode_dirty(handle, inode);
+	if (err) {
+		ext4_warning(inode->i_sb, __func__,
+			     "couldn't mark inode dirty (err %d)", err);
+		goto stop_handle;
+	}
 	if (inode->i_blocks)
 		ext4_truncate(inode);
+
+	/*
+	 * ext4_ext_truncate() doesn't reserve any slop when it
+	 * restarts journal transactions; therefore there may not be
+	 * enough credits left in the handle to remove the inode from
+	 * the orphan list and set the dtime field.
+	 */
+	if (handle->h_buffer_credits < 3) {
+		err = ext4_journal_extend(handle, 3);
+		if (err > 0)
+			err = ext4_journal_restart(handle, 3);
+		if (err != 0) {
+			ext4_warning(inode->i_sb, __func__,
+				     "couldn't extend journal (err %d)", err);
+		stop_handle:
+			ext4_journal_stop(handle);
+			goto no_delete;
+		}
+	}
+
 	/*
 	 * Kill off the orphan record which ext4_truncate created.
 	 * AKPM: I think this can be inside the above `if'.
@@ -952,23 +982,74 @@ out:
 	return err;
 }
 
-/* Maximum number of blocks we map for direct IO at once. */
-#define DIO_MAX_BLOCKS 4096
 /*
- * Number of credits we need for writing DIO_MAX_BLOCKS:
- * We need sb + group descriptor + bitmap + inode -> 4
- * For B blocks with A block pointers per block we need:
- * 1 (triple ind.) + (B/A/A + 2) (doubly ind.) + (B/A + 2) (indirect).
- * If we plug in 4096 for B and 256 for A (for 1KB block size), we get 25.
+ * Calculate the number of metadata blocks need to reserve
+ * to allocate @blocks for non extent file based file
  */
-#define DIO_CREDITS 25
+static int ext4_indirect_calc_metadata_amount(struct inode *inode, int blocks)
+{
+	int icap = EXT4_ADDR_PER_BLOCK(inode->i_sb);
+	int ind_blks, dind_blks, tind_blks;
+
+	/* number of new indirect blocks needed */
+	ind_blks = (blocks + icap - 1) / icap;
+
+	dind_blks = (ind_blks + icap - 1) / icap;
 
+	tind_blks = 1;
+
+	return ind_blks + dind_blks + tind_blks;
+}
 
 /*
+ * Calculate the number of metadata blocks need to reserve
+ * to allocate given number of blocks
+ */
+static int ext4_calc_metadata_amount(struct inode *inode, int blocks)
+{
+	if (!blocks)
+		return 0;
+
+	if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)
+		return ext4_ext_calc_metadata_amount(inode, blocks);
+
+	return ext4_indirect_calc_metadata_amount(inode, blocks);
+}
+
+static void ext4_da_update_reserve_space(struct inode *inode, int used)
+{
+	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
+	int total, mdb, mdb_free;
+
+	spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+	/* recalculate the number of metablocks still need to be reserved */
+	total = EXT4_I(inode)->i_reserved_data_blocks - used;
+	mdb = ext4_calc_metadata_amount(inode, total);
+
+	/* figure out how many metablocks to release */
+	BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
+	mdb_free = EXT4_I(inode)->i_reserved_meta_blocks - mdb;
+
+	/* Account for allocated meta_blocks */
+	mdb_free -= EXT4_I(inode)->i_allocated_meta_blocks;
+
+	/* update fs free blocks counter for truncate case */
+	percpu_counter_add(&sbi->s_freeblocks_counter, mdb_free);
+
+	/* update per-inode reservations */
+	BUG_ON(used  > EXT4_I(inode)->i_reserved_data_blocks);
+	EXT4_I(inode)->i_reserved_data_blocks -= used;
+
+	BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
+	EXT4_I(inode)->i_reserved_meta_blocks = mdb;
+	EXT4_I(inode)->i_allocated_meta_blocks = 0;
+	spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+}
+
+/*
+ * The ext4_get_blocks_wrap() function try to look up the requested blocks,
+ * and returns if the blocks are already mapped.
  *
- *
- * ext4_ext4 get_block() wrapper function
- * It will do a look up first, and returns if the blocks already mapped.
  * Otherwise it takes the write lock of the i_data_sem and allocate blocks
  * and store the allocated blocks in the result buffer head and mark it
  * mapped.
@@ -1069,26 +1150,30 @@ int ext4_get_blocks_wrap(handle_t *handle, struct inode *inode, sector_t block,
 		 * which were deferred till now
 		 */
 		if ((retval > 0) && buffer_delay(bh))
-			ext4_da_release_space(inode, retval, 0);
+			ext4_da_update_reserve_space(inode, retval);
 	}
 
 	up_write((&EXT4_I(inode)->i_data_sem));
 	return retval;
 }
 
+/* Maximum number of blocks we map for direct IO at once. */
+#define DIO_MAX_BLOCKS 4096
+
 static int ext4_get_block(struct inode *inode, sector_t iblock,
 			struct buffer_head *bh_result, int create)
 {
 	handle_t *handle = ext4_journal_current_handle();
 	int ret = 0, started = 0;
 	unsigned max_blocks = bh_result->b_size >> inode->i_blkbits;
+	int dio_credits;
 
 	if (create && !handle) {
 		/* Direct IO write... */
 		if (max_blocks > DIO_MAX_BLOCKS)
 			max_blocks = DIO_MAX_BLOCKS;
-		handle = ext4_journal_start(inode, DIO_CREDITS +
-			      2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb));
+		dio_credits = ext4_chunk_trans_blocks(inode, max_blocks);
+		handle = ext4_journal_start(inode, dio_credits);
 		if (IS_ERR(handle)) {
 			ret = PTR_ERR(handle);
 			goto out;
@@ -1336,12 +1421,8 @@ static int ext4_ordered_write_end(struct file *file,
 {
 	handle_t *handle = ext4_journal_current_handle();
 	struct inode *inode = mapping->host;
-	unsigned from, to;
 	int ret = 0, ret2;
 
-	from = pos & (PAGE_CACHE_SIZE - 1);
-	to = from + len;
-
 	ret = ext4_jbd2_file_inode(handle, inode);
 
 	if (ret == 0) {
@@ -1437,36 +1518,6 @@ static int ext4_journalled_write_end(struct file *file,
 
 	return ret ? ret : copied;
 }
-/*
- * Calculate the number of metadata blocks need to reserve
- * to allocate @blocks for non extent file based file
- */
-static int ext4_indirect_calc_metadata_amount(struct inode *inode, int blocks)
-{
-	int icap = EXT4_ADDR_PER_BLOCK(inode->i_sb);
-	int ind_blks, dind_blks, tind_blks;
-
-	/* number of new indirect blocks needed */
-	ind_blks = (blocks + icap - 1) / icap;
-
-	dind_blks = (ind_blks + icap - 1) / icap;
-
-	tind_blks = 1;
-
-	return ind_blks + dind_blks + tind_blks;
-}
-
-/*
- * Calculate the number of metadata blocks need to reserve
- * to allocate given number of blocks
- */
-static int ext4_calc_metadata_amount(struct inode *inode, int blocks)
-{
-	if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)
-		return ext4_ext_calc_metadata_amount(inode, blocks);
-
-	return ext4_indirect_calc_metadata_amount(inode, blocks);
-}
 
 static int ext4_da_reserve_space(struct inode *inode, int nrblocks)
 {
@@ -1490,7 +1541,6 @@ static int ext4_da_reserve_space(struct inode *inode, int nrblocks)
 		spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
 		return -ENOSPC;
 	}
-
 	/* reduce fs free blocks counter */
 	percpu_counter_sub(&sbi->s_freeblocks_counter, total);
 
@@ -1501,35 +1551,49 @@ static int ext4_da_reserve_space(struct inode *inode, int nrblocks)
 	return 0;       /* success */
 }
 
-void ext4_da_release_space(struct inode *inode, int used, int to_free)
+static void ext4_da_release_space(struct inode *inode, int to_free)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	int total, mdb, mdb_free, release;
 
+	if (!to_free)
+		return;		/* Nothing to release, exit */
+
 	spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
+
+	if (!EXT4_I(inode)->i_reserved_data_blocks) {
+		/*
+		 * if there is no reserved blocks, but we try to free some
+		 * then the counter is messed up somewhere.
+		 * but since this function is called from invalidate
+		 * page, it's harmless to return without any action
+		 */
+		printk(KERN_INFO "ext4 delalloc try to release %d reserved "
+			    "blocks for inode %lu, but there is no reserved "
+			    "data blocks\n", to_free, inode->i_ino);
+		spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
+		return;
+	}
+
 	/* recalculate the number of metablocks still need to be reserved */
-	total = EXT4_I(inode)->i_reserved_data_blocks - used - to_free;
+	total = EXT4_I(inode)->i_reserved_data_blocks - to_free;
 	mdb = ext4_calc_metadata_amount(inode, total);
 
 	/* figure out how many metablocks to release */
 	BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
 	mdb_free = EXT4_I(inode)->i_reserved_meta_blocks - mdb;
 
-	/* Account for allocated meta_blocks */
-	mdb_free -= EXT4_I(inode)->i_allocated_meta_blocks;
-
 	release = to_free + mdb_free;
 
 	/* update fs free blocks counter for truncate case */
 	percpu_counter_add(&sbi->s_freeblocks_counter, release);
 
 	/* update per-inode reservations */
-	BUG_ON(used + to_free > EXT4_I(inode)->i_reserved_data_blocks);
-	EXT4_I(inode)->i_reserved_data_blocks -= (used + to_free);
+	BUG_ON(to_free > EXT4_I(inode)->i_reserved_data_blocks);
+	EXT4_I(inode)->i_reserved_data_blocks -= to_free;
 
 	BUG_ON(mdb > EXT4_I(inode)->i_reserved_meta_blocks);
 	EXT4_I(inode)->i_reserved_meta_blocks = mdb;
-	EXT4_I(inode)->i_allocated_meta_blocks = 0;
 	spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
 }
 
@@ -1551,7 +1615,7 @@ static void ext4_da_page_release_reservation(struct page *page,
 		}
 		curr_off = next_off;
 	} while ((bh = bh->b_this_page) != head);
-	ext4_da_release_space(page->mapping->host, 0, to_release);
+	ext4_da_release_space(page->mapping->host, to_release);
 }
 
 /*
@@ -1564,11 +1628,13 @@ struct mpage_da_data {
 	unsigned long first_page, next_page;	/* extent of pages */
 	get_block_t *get_block;
 	struct writeback_control *wbc;
+	int io_done;
+	long pages_written;
 };
 
 /*
  * mpage_da_submit_io - walks through extent of pages and try to write
- * them with __mpage_writepage()
+ * them with writepage() call back
  *
  * @mpd->inode: inode
  * @mpd->first_page: first page of the extent
@@ -1583,18 +1649,11 @@ struct mpage_da_data {
 static int mpage_da_submit_io(struct mpage_da_data *mpd)
 {
 	struct address_space *mapping = mpd->inode->i_mapping;
-	struct mpage_data mpd_pp = {
-		.bio = NULL,
-		.last_block_in_bio = 0,
-		.get_block = mpd->get_block,
-		.use_writepage = 1,
-	};
 	int ret = 0, err, nr_pages, i;
 	unsigned long index, end;
 	struct pagevec pvec;
 
 	BUG_ON(mpd->next_page <= mpd->first_page);
-
 	pagevec_init(&pvec, 0);
 	index = mpd->first_page;
 	end = mpd->next_page - 1;
@@ -1612,8 +1671,9 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd)
 				break;
 			index++;
 
-			err = __mpage_writepage(page, mpd->wbc, &mpd_pp);
-
+			err = mapping->a_ops->writepage(page, mpd->wbc);
+			if (!err)
+				mpd->pages_written++;
 			/*
 			 * In error case, we have to continue because
 			 * remaining pages are still locked
@@ -1624,9 +1684,6 @@ static int mpage_da_submit_io(struct mpage_da_data *mpd)
 		}
 		pagevec_release(&pvec);
 	}
-	if (mpd_pp.bio)
-		mpage_bio_submit(WRITE, mpd_pp.bio);
-
 	return ret;
 }
 
@@ -1649,7 +1706,7 @@ static void mpage_put_bnr_to_bhs(struct mpage_da_data *mpd, sector_t logical,
 	int blocks = exbh->b_size >> inode->i_blkbits;
 	sector_t pblock = exbh->b_blocknr, cur_logical;
 	struct buffer_head *head, *bh;
-	unsigned long index, end;
+	pgoff_t index, end;
 	struct pagevec pvec;
 	int nr_pages, i;
 
@@ -1692,6 +1749,13 @@ static void mpage_put_bnr_to_bhs(struct mpage_da_data *mpd, sector_t logical,
 				if (buffer_delay(bh)) {
 					bh->b_blocknr = pblock;
 					clear_buffer_delay(bh);
+					bh->b_bdev = inode->i_sb->s_bdev;
+				} else if (buffer_unwritten(bh)) {
+					bh->b_blocknr = pblock;
+					clear_buffer_unwritten(bh);
+					set_buffer_mapped(bh);
+					set_buffer_new(bh);
+					bh->b_bdev = inode->i_sb->s_bdev;
 				} else if (buffer_mapped(bh))
 					BUG_ON(bh->b_blocknr != pblock);
 
@@ -1727,13 +1791,11 @@ static inline void __unmap_underlying_blocks(struct inode *inode,
  *
  * The function skips space we know is already mapped to disk blocks.
  *
- * The function ignores errors ->get_block() returns, thus real
- * error handling is postponed to __mpage_writepage()
  */
 static void mpage_da_map_blocks(struct mpage_da_data *mpd)
 {
+	int err = 0;
 	struct buffer_head *lbh = &mpd->lbh;
-	int err = 0, remain = lbh->b_size;
 	sector_t next = lbh->b_blocknr;
 	struct buffer_head new;
 
@@ -1743,38 +1805,36 @@ static void mpage_da_map_blocks(struct mpage_da_data *mpd)
 	if (buffer_mapped(lbh) && !buffer_delay(lbh))
 		return;
 
-	while (remain) {
-		new.b_state = lbh->b_state;
-		new.b_blocknr = 0;
-		new.b_size = remain;
-		err = mpd->get_block(mpd->inode, next, &new, 1);
-		if (err) {
-			/*
-			 * Rather than implement own error handling
-			 * here, we just leave remaining blocks
-			 * unallocated and try again with ->writepage()
-			 */
-			break;
-		}
-		BUG_ON(new.b_size == 0);
+	new.b_state = lbh->b_state;
+	new.b_blocknr = 0;
+	new.b_size = lbh->b_size;
 
-		if (buffer_new(&new))
-			__unmap_underlying_blocks(mpd->inode, &new);
+	/*
+	 * If we didn't accumulate anything
+	 * to write simply return
+	 */
+	if (!new.b_size)
+		return;
+	err = mpd->get_block(mpd->inode, next, &new, 1);
+	if (err)
+		return;
+	BUG_ON(new.b_size == 0);
 
-		/*
-		 * If blocks are delayed marked, we need to
-		 * put actual blocknr and drop delayed bit
-		 */
-		if (buffer_delay(lbh))
-			mpage_put_bnr_to_bhs(mpd, next, &new);
+	if (buffer_new(&new))
+		__unmap_underlying_blocks(mpd->inode, &new);
 
-		/* go for the remaining blocks */
-		next += new.b_size >> mpd->inode->i_blkbits;
-		remain -= new.b_size;
-	}
+	/*
+	 * If blocks are delayed marked, we need to
+	 * put actual blocknr and drop delayed bit
+	 */
+	if (buffer_delay(lbh) || buffer_unwritten(lbh))
+		mpage_put_bnr_to_bhs(mpd, next, &new);
+
+	return;
 }
 
-#define BH_FLAGS ((1 << BH_Uptodate) | (1 << BH_Mapped) | (1 << BH_Delay))
+#define BH_FLAGS ((1 << BH_Uptodate) | (1 << BH_Mapped) | \
+		(1 << BH_Delay) | (1 << BH_Unwritten))
 
 /*
  * mpage_add_bh_to_extent - try to add one more block to extent of blocks
@@ -1788,41 +1848,61 @@ static void mpage_da_map_blocks(struct mpage_da_data *mpd)
 static void mpage_add_bh_to_extent(struct mpage_da_data *mpd,
 				   sector_t logical, struct buffer_head *bh)
 {
-	struct buffer_head *lbh = &mpd->lbh;
 	sector_t next;
+	size_t b_size = bh->b_size;
+	struct buffer_head *lbh = &mpd->lbh;
+	int nrblocks = lbh->b_size >> mpd->inode->i_blkbits;
 
-	next = lbh->b_blocknr + (lbh->b_size >> mpd->inode->i_blkbits);
-
+	/* check if thereserved journal credits might overflow */
+	if (!(EXT4_I(mpd->inode)->i_flags & EXT4_EXTENTS_FL)) {
+		if (nrblocks >= EXT4_MAX_TRANS_DATA) {
+			/*
+			 * With non-extent format we are limited by the journal
+			 * credit available.  Total credit needed to insert
+			 * nrblocks contiguous blocks is dependent on the
+			 * nrblocks.  So limit nrblocks.
+			 */
+			goto flush_it;
+		} else if ((nrblocks + (b_size >> mpd->inode->i_blkbits)) >
+				EXT4_MAX_TRANS_DATA) {
+			/*
+			 * Adding the new buffer_head would make it cross the
+			 * allowed limit for which we have journal credit
+			 * reserved. So limit the new bh->b_size
+			 */
+			b_size = (EXT4_MAX_TRANS_DATA - nrblocks) <<
+						mpd->inode->i_blkbits;
+			/* we will do mpage_da_submit_io in the next loop */
+		}
+	}
 	/*
 	 * First block in the extent
 	 */
 	if (lbh->b_size == 0) {
 		lbh->b_blocknr = logical;
-		lbh->b_size = bh->b_size;
+		lbh->b_size = b_size;
 		lbh->b_state = bh->b_state & BH_FLAGS;
 		return;
 	}
 
+	next = lbh->b_blocknr + nrblocks;
 	/*
 	 * Can we merge the block to our big extent?
 	 */
 	if (logical == next && (bh->b_state & BH_FLAGS) == lbh->b_state) {
-		lbh->b_size += bh->b_size;
+		lbh->b_size += b_size;
 		return;
 	}
 
+flush_it:
 	/*
 	 * We couldn't merge the block to our extent, so we
 	 * need to flush current  extent and start new one
 	 */
 	mpage_da_map_blocks(mpd);
-
-	/*
-	 * Now start a new extent
-	 */
-	lbh->b_size = bh->b_size;
-	lbh->b_state = bh->b_state & BH_FLAGS;
-	lbh->b_blocknr = logical;
+	mpage_da_submit_io(mpd);
+	mpd->io_done = 1;
+	return;
 }
 
 /*
@@ -1842,17 +1922,35 @@ static int __mpage_da_writepage(struct page *page,
 	struct buffer_head *bh, *head, fake;
 	sector_t logical;
 
+	if (mpd->io_done) {
+		/*
+		 * Rest of the page in the page_vec
+		 * redirty then and skip then. We will
+		 * try to to write them again after
+		 * starting a new transaction
+		 */
+		redirty_page_for_writepage(wbc, page);
+		unlock_page(page);
+		return MPAGE_DA_EXTENT_TAIL;
+	}
 	/*
 	 * Can we merge this page to current extent?
 	 */
 	if (mpd->next_page != page->index) {
 		/*
 		 * Nope, we can't. So, we map non-allocated blocks
-		 * and start IO on them using __mpage_writepage()
+		 * and start IO on them using writepage()
 		 */
 		if (mpd->next_page != mpd->first_page) {
 			mpage_da_map_blocks(mpd);
 			mpage_da_submit_io(mpd);
+			/*
+			 * skip rest of the page in the page_vec
+			 */
+			mpd->io_done = 1;
+			redirty_page_for_writepage(wbc, page);
+			unlock_page(page);
+			return MPAGE_DA_EXTENT_TAIL;
 		}
 
 		/*
@@ -1883,6 +1981,8 @@ static int __mpage_da_writepage(struct page *page,
 		set_buffer_dirty(bh);
 		set_buffer_uptodate(bh);
 		mpage_add_bh_to_extent(mpd, logical, bh);
+		if (mpd->io_done)
+			return MPAGE_DA_EXTENT_TAIL;
 	} else {
 		/*
 		 * Page with regular buffer heads, just add all dirty ones
@@ -1891,8 +1991,12 @@ static int __mpage_da_writepage(struct page *page,
 		bh = head;
 		do {
 			BUG_ON(buffer_locked(bh));
-			if (buffer_dirty(bh))
+			if (buffer_dirty(bh) &&
+				(!buffer_mapped(bh) || buffer_delay(bh))) {
 				mpage_add_bh_to_extent(mpd, logical, bh);
+				if (mpd->io_done)
+					return MPAGE_DA_EXTENT_TAIL;
+			}
 			logical++;
 		} while ((bh = bh->b_this_page) != head);
 	}
@@ -1911,22 +2015,13 @@ static int __mpage_da_writepage(struct page *page,
  *
  * This is a library function, which implements the writepages()
  * address_space_operation.
- *
- * In order to avoid duplication of logic that deals with partial pages,
- * multiple bio per page, etc, we find non-allocated blocks, allocate
- * them with minimal calls to ->get_block() and re-use __mpage_writepage()
- *
- * It's important that we call __mpage_writepage() only once for each
- * involved page, otherwise we'd have to implement more complicated logic
- * to deal with pages w/o PG_lock or w/ PG_writeback and so on.
- *
- * See comments to mpage_writepages()
  */
 static int mpage_da_writepages(struct address_space *mapping,
 			       struct writeback_control *wbc,
 			       get_block_t get_block)
 {
 	struct mpage_da_data mpd;
+	long to_write;
 	int ret;
 
 	if (!get_block)
@@ -1940,17 +2035,22 @@ static int mpage_da_writepages(struct address_space *mapping,
 	mpd.first_page = 0;
 	mpd.next_page = 0;
 	mpd.get_block = get_block;
+	mpd.io_done = 0;
+	mpd.pages_written = 0;
+
+	to_write = wbc->nr_to_write;
 
 	ret = write_cache_pages(mapping, wbc, __mpage_da_writepage, &mpd);
 
 	/*
 	 * Handle last extent of pages
 	 */
-	if (mpd.next_page != mpd.first_page) {
+	if (!mpd.io_done && mpd.next_page != mpd.first_page) {
 		mpage_da_map_blocks(&mpd);
 		mpage_da_submit_io(&mpd);
 	}
 
+	wbc->nr_to_write = to_write - mpd.pages_written;
 	return ret;
 }
 
@@ -2155,63 +2255,95 @@ static int ext4_da_writepage(struct page *page,
 }
 
 /*
- * For now just follow the DIO way to estimate the max credits
- * needed to write out EXT4_MAX_WRITEBACK_PAGES.
- * todo: need to calculate the max credits need for
- * extent based files, currently the DIO credits is based on
- * indirect-blocks mapping way.
- *
- * Probably should have a generic way to calculate credits
- * for DIO, writepages, and truncate
+ * This is called via ext4_da_writepages() to
+ * calulate the total number of credits to reserve to fit
+ * a single extent allocation into a single transaction,
+ * ext4_da_writpeages() will loop calling this before
+ * the block allocation.
  */
-#define EXT4_MAX_WRITEBACK_PAGES      DIO_MAX_BLOCKS
-#define EXT4_MAX_WRITEBACK_CREDITS    DIO_CREDITS
+
+static int ext4_da_writepages_trans_blocks(struct inode *inode)
+{
+	int max_blocks = EXT4_I(inode)->i_reserved_data_blocks;
+
+	/*
+	 * With non-extent format the journal credit needed to
+	 * insert nrblocks contiguous block is dependent on
+	 * number of contiguous block. So we will limit
+	 * number of contiguous block to a sane value
+	 */
+	if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
+	    (max_blocks > EXT4_MAX_TRANS_DATA))
+		max_blocks = EXT4_MAX_TRANS_DATA;
+
+	return ext4_chunk_trans_blocks(inode, max_blocks);
+}
 
 static int ext4_da_writepages(struct address_space *mapping,
-				struct writeback_control *wbc)
+			      struct writeback_control *wbc)
 {
-	struct inode *inode = mapping->host;
 	handle_t *handle = NULL;
-	int needed_blocks;
-	int ret = 0;
-	long to_write;
 	loff_t range_start = 0;
+	struct inode *inode = mapping->host;
+	int needed_blocks, ret = 0, nr_to_writebump = 0;
+	long to_write, pages_skipped = 0;
+	struct ext4_sb_info *sbi = EXT4_SB(mapping->host->i_sb);
 
 	/*
 	 * No pages to write? This is mainly a kludge to avoid starting
 	 * a transaction for special inodes like journal inode on last iput()
 	 * because that could violate lock ordering on umount
 	 */
-	if (!mapping->nrpages)
+	if (!mapping->nrpages || !mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
 		return 0;
-
 	/*
-	 * Estimate the worse case needed credits to write out
-	 * EXT4_MAX_BUF_BLOCKS pages
+	 * Make sure nr_to_write is >= sbi->s_mb_stream_request
+	 * This make sure small files blocks are allocated in
+	 * single attempt. This ensure that small files
+	 * get less fragmented.
 	 */
-	needed_blocks = EXT4_MAX_WRITEBACK_CREDITS;
+	if (wbc->nr_to_write < sbi->s_mb_stream_request) {
+		nr_to_writebump = sbi->s_mb_stream_request - wbc->nr_to_write;
+		wbc->nr_to_write = sbi->s_mb_stream_request;
+	}
 
-	to_write = wbc->nr_to_write;
-	if (!wbc->range_cyclic) {
+	if (!wbc->range_cyclic)
 		/*
 		 * If range_cyclic is not set force range_cont
 		 * and save the old writeback_index
 		 */
 		wbc->range_cont = 1;
-		range_start =  wbc->range_start;
-	}
 
-	while (!ret && to_write) {
+	range_start =  wbc->range_start;
+	pages_skipped = wbc->pages_skipped;
+
+restart_loop:
+	to_write = wbc->nr_to_write;
+	while (!ret && to_write > 0) {
+
+		/*
+		 * we  insert one extent at a time. So we need
+		 * credit needed for single extent allocation.
+		 * journalled mode is currently not supported
+		 * by delalloc
+		 */
+		BUG_ON(ext4_should_journal_data(inode));
+		needed_blocks = ext4_da_writepages_trans_blocks(inode);
+
 		/* start a new transaction*/
 		handle = ext4_journal_start(inode, needed_blocks);
 		if (IS_ERR(handle)) {
 			ret = PTR_ERR(handle);
+			printk(KERN_EMERG "%s: jbd2_start: "
+			       "%ld pages, ino %lu; err %d\n", __func__,
+				wbc->nr_to_write, inode->i_ino, ret);
+			dump_stack();
 			goto out_writepages;
 		}
 		if (ext4_should_order_data(inode)) {
 			/*
 			 * With ordered mode we need to add
-			 * the inode to the journal handle
+			 * the inode to the journal handl
 			 * when we do block allocation.
 			 */
 			ret = ext4_jbd2_file_inode(handle, inode);
@@ -2219,20 +2351,20 @@ static int ext4_da_writepages(struct address_space *mapping,
 				ext4_journal_stop(handle);
 				goto out_writepages;
 			}
-
 		}
-		/*
-		 * set the max dirty pages could be write at a time
-		 * to fit into the reserved transaction credits
-		 */
-		if (wbc->nr_to_write > EXT4_MAX_WRITEBACK_PAGES)
-			wbc->nr_to_write = EXT4_MAX_WRITEBACK_PAGES;
 
 		to_write -= wbc->nr_to_write;
 		ret = mpage_da_writepages(mapping, wbc,
-						ext4_da_get_block_write);
+					  ext4_da_get_block_write);
 		ext4_journal_stop(handle);
-		if (wbc->nr_to_write) {
+		if (ret == MPAGE_DA_EXTENT_TAIL) {
+			/*
+			 * got one extent now try with
+			 * rest of the pages
+			 */
+			to_write += wbc->nr_to_write;
+			ret = 0;
+		} else if (wbc->nr_to_write) {
 			/*
 			 * There is no more writeout needed
 			 * or we requested for a noblocking writeout
@@ -2244,10 +2376,18 @@ static int ext4_da_writepages(struct address_space *mapping,
 		wbc->nr_to_write = to_write;
 	}
 
-out_writepages:
-	wbc->nr_to_write = to_write;
-	if (range_start)
+	if (wbc->range_cont && (pages_skipped != wbc->pages_skipped)) {
+		/* We skipped pages in this loop */
 		wbc->range_start = range_start;
+		wbc->nr_to_write = to_write +
+				wbc->pages_skipped - pages_skipped;
+		wbc->pages_skipped = pages_skipped;
+		goto restart_loop;
+	}
+
+out_writepages:
+	wbc->nr_to_write = to_write - nr_to_writebump;
+	wbc->range_start = range_start;
 	return ret;
 }
 
@@ -2280,8 +2420,11 @@ retry:
 	}
 
 	page = __grab_cache_page(mapping, index);
-	if (!page)
-		return -ENOMEM;
+	if (!page) {
+		ext4_journal_stop(handle);
+		ret = -ENOMEM;
+		goto out;
+	}
 	*pagep = page;
 
 	ret = block_write_begin(file, mapping, pos, len, flags, pagep, fsdata,
@@ -3434,6 +3577,9 @@ void ext4_truncate(struct inode *inode)
 	 * modify the block allocation tree.
 	 */
 	down_write(&ei->i_data_sem);
+
+	ext4_discard_reservation(inode);
+
 	/*
 	 * The orphan list entry will now protect us from any crash which
 	 * occurs before the truncate completes, so it is now safe to propagate
@@ -3503,8 +3649,6 @@ do_indirects:
 		;
 	}
 
-	ext4_discard_reservation(inode);
-
 	up_write(&ei->i_data_sem);
 	inode->i_mtime = inode->i_ctime = ext4_current_time(inode);
 	ext4_mark_inode_dirty(handle, inode);
@@ -3590,6 +3734,16 @@ static int __ext4_get_inode_loc(struct inode *inode,
 	}
 	if (!buffer_uptodate(bh)) {
 		lock_buffer(bh);
+
+		/*
+		 * If the buffer has the write error flag, we have failed
+		 * to write out another inode in the same block.  In this
+		 * case, we don't have to read the block because we may
+		 * read the old inode data successfully.
+		 */
+		if (buffer_write_io_error(bh) && !buffer_uptodate(bh))
+			set_buffer_uptodate(bh);
+
 		if (buffer_uptodate(bh)) {
 			/* someone brought it uptodate while we waited */
 			unlock_buffer(bh);
@@ -4262,57 +4416,129 @@ int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	return 0;
 }
 
+static int ext4_indirect_trans_blocks(struct inode *inode, int nrblocks,
+				      int chunk)
+{
+	int indirects;
+
+	/* if nrblocks are contiguous */
+	if (chunk) {
+		/*
+		 * With N contiguous data blocks, it need at most
+		 * N/EXT4_ADDR_PER_BLOCK(inode->i_sb) indirect blocks
+		 * 2 dindirect blocks
+		 * 1 tindirect block
+		 */
+		indirects = nrblocks / EXT4_ADDR_PER_BLOCK(inode->i_sb);
+		return indirects + 3;
+	}
+	/*
+	 * if nrblocks are not contiguous, worse case, each block touch
+	 * a indirect block, and each indirect block touch a double indirect
+	 * block, plus a triple indirect block
+	 */
+	indirects = nrblocks * 2 + 1;
+	return indirects;
+}
+
+static int ext4_index_trans_blocks(struct inode *inode, int nrblocks, int chunk)
+{
+	if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL))
+		return ext4_indirect_trans_blocks(inode, nrblocks, 0);
+	return ext4_ext_index_trans_blocks(inode, nrblocks, 0);
+}
 /*
- * How many blocks doth make a writepage()?
+ * Account for index blocks, block groups bitmaps and block group
+ * descriptor blocks if modify datablocks and index blocks
+ * worse case, the indexs blocks spread over different block groups
  *
- * With N blocks per page, it may be:
- * N data blocks
- * 2 indirect block
- * 2 dindirect
- * 1 tindirect
- * N+5 bitmap blocks (from the above)
- * N+5 group descriptor summary blocks
- * 1 inode block
- * 1 superblock.
- * 2 * EXT4_SINGLEDATA_TRANS_BLOCKS for the quote files
+ * If datablocks are discontiguous, they are possible to spread over
+ * different block groups too. If they are contiugous, with flexbg,
+ * they could still across block group boundary.
  *
- * 3 * (N + 5) + 2 + 2 * EXT4_SINGLEDATA_TRANS_BLOCKS
- *
- * With ordered or writeback data it's the same, less the N data blocks.
+ * Also account for superblock, inode, quota and xattr blocks
+ */
+int ext4_meta_trans_blocks(struct inode *inode, int nrblocks, int chunk)
+{
+	int groups, gdpblocks;
+	int idxblocks;
+	int ret = 0;
+
+	/*
+	 * How many index blocks need to touch to modify nrblocks?
+	 * The "Chunk" flag indicating whether the nrblocks is
+	 * physically contiguous on disk
+	 *
+	 * For Direct IO and fallocate, they calls get_block to allocate
+	 * one single extent at a time, so they could set the "Chunk" flag
+	 */
+	idxblocks = ext4_index_trans_blocks(inode, nrblocks, chunk);
+
+	ret = idxblocks;
+
+	/*
+	 * Now let's see how many group bitmaps and group descriptors need
+	 * to account
+	 */
+	groups = idxblocks;
+	if (chunk)
+		groups += 1;
+	else
+		groups += nrblocks;
+
+	gdpblocks = groups;
+	if (groups > EXT4_SB(inode->i_sb)->s_groups_count)
+		groups = EXT4_SB(inode->i_sb)->s_groups_count;
+	if (groups > EXT4_SB(inode->i_sb)->s_gdb_count)
+		gdpblocks = EXT4_SB(inode->i_sb)->s_gdb_count;
+
+	/* bitmaps and block group descriptor blocks */
+	ret += groups + gdpblocks;
+
+	/* Blocks for super block, inode, quota and xattr blocks */
+	ret += EXT4_META_TRANS_BLOCKS(inode->i_sb);
+
+	return ret;
+}
+
+/*
+ * Calulate the total number of credits to reserve to fit
+ * the modification of a single pages into a single transaction,
+ * which may include multiple chunks of block allocations.
  *
- * If the inode's direct blocks can hold an integral number of pages then a
- * page cannot straddle two indirect blocks, and we can only touch one indirect
- * and dindirect block, and the "5" above becomes "3".
+ * This could be called via ext4_write_begin()
  *
- * This still overestimates under most circumstances.  If we were to pass the
- * start and end offsets in here as well we could do block_to_path() on each
- * block and work out the exact number of indirects which are touched.  Pah.
+ * We need to consider the worse case, when
+ * one new block per extent.
  */
-
 int ext4_writepage_trans_blocks(struct inode *inode)
 {
 	int bpp = ext4_journal_blocks_per_page(inode);
-	int indirects = (EXT4_NDIR_BLOCKS % bpp) ? 5 : 3;
 	int ret;
 
-	if (EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)
-		return ext4_ext_writepage_trans_blocks(inode, bpp);
+	ret = ext4_meta_trans_blocks(inode, bpp, 0);
 
+	/* Account for data blocks for journalled mode */
 	if (ext4_should_journal_data(inode))
-		ret = 3 * (bpp + indirects) + 2;
-	else
-		ret = 2 * (bpp + indirects) + 2;
-
-#ifdef CONFIG_QUOTA
-	/* We know that structure was already allocated during DQUOT_INIT so
-	 * we will be updating only the data blocks + inodes */
-	ret += 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
-#endif
-
+		ret += bpp;
 	return ret;
 }
 
 /*
+ * Calculate the journal credits for a chunk of data modification.
+ *
+ * This is called from DIO, fallocate or whoever calling
+ * ext4_get_blocks_wrap() to map/allocate a chunk of contigous disk blocks.
+ *
+ * journal buffers for data blocks are not included here, as DIO
+ * and fallocate do no need to journal data buffers.
+ */
+int ext4_chunk_trans_blocks(struct inode *inode, int nrblocks)
+{
+	return ext4_meta_trans_blocks(inode, nrblocks, 1);
+}
+
+/*
  * The caller must have previously called ext4_reserve_inode_write().
  * Give this, we know that the caller already has write access to iloc->bh.
  */
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 8d141a25bbee..e0e3a5eb1ddb 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -787,13 +787,16 @@ static int ext4_mb_init_cache(struct page *page, char *incore)
 		if (bh_uptodate_or_lock(bh[i]))
 			continue;
 
+		spin_lock(sb_bgl_lock(EXT4_SB(sb), first_group + i));
 		if (desc->bg_flags & cpu_to_le16(EXT4_BG_BLOCK_UNINIT)) {
 			ext4_init_block_bitmap(sb, bh[i],
 						first_group + i, desc);
 			set_buffer_uptodate(bh[i]);
 			unlock_buffer(bh[i]);
+			spin_unlock(sb_bgl_lock(EXT4_SB(sb), first_group + i));
 			continue;
 		}
+		spin_unlock(sb_bgl_lock(EXT4_SB(sb), first_group + i));
 		get_bh(bh[i]);
 		bh[i]->b_end_io = end_buffer_read_sync;
 		submit_bh(READ, bh[i]);
@@ -2477,7 +2480,7 @@ err_freesgi:
 int ext4_mb_init(struct super_block *sb, int needs_recovery)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
-	unsigned i;
+	unsigned i, j;
 	unsigned offset;
 	unsigned max;
 	int ret;
@@ -2537,7 +2540,7 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
 	sbi->s_mb_history_filter = EXT4_MB_HISTORY_DEFAULT;
 	sbi->s_mb_group_prealloc = MB_DEFAULT_GROUP_PREALLOC;
 
-	i = sizeof(struct ext4_locality_group) * NR_CPUS;
+	i = sizeof(struct ext4_locality_group) * nr_cpu_ids;
 	sbi->s_locality_groups = kmalloc(i, GFP_KERNEL);
 	if (sbi->s_locality_groups == NULL) {
 		clear_opt(sbi->s_mount_opt, MBALLOC);
@@ -2545,11 +2548,12 @@ int ext4_mb_init(struct super_block *sb, int needs_recovery)
 		kfree(sbi->s_mb_maxs);
 		return -ENOMEM;
 	}
-	for (i = 0; i < NR_CPUS; i++) {
+	for (i = 0; i < nr_cpu_ids; i++) {
 		struct ext4_locality_group *lg;
 		lg = &sbi->s_locality_groups[i];
 		mutex_init(&lg->lg_mutex);
-		INIT_LIST_HEAD(&lg->lg_prealloc_list);
+		for (j = 0; j < PREALLOC_TB_SIZE; j++)
+			INIT_LIST_HEAD(&lg->lg_prealloc_list[j]);
 		spin_lock_init(&lg->lg_prealloc_lock);
 	}
 
@@ -3260,6 +3264,7 @@ static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
 				struct ext4_prealloc_space *pa)
 {
 	unsigned int len = ac->ac_o_ex.fe_len;
+
 	ext4_get_group_no_and_offset(ac->ac_sb, pa->pa_pstart,
 					&ac->ac_b_ex.fe_group,
 					&ac->ac_b_ex.fe_start);
@@ -3277,14 +3282,45 @@ static void ext4_mb_use_group_pa(struct ext4_allocation_context *ac,
 }
 
 /*
+ * Return the prealloc space that have minimal distance
+ * from the goal block. @cpa is the prealloc
+ * space that is having currently known minimal distance
+ * from the goal block.
+ */
+static struct ext4_prealloc_space *
+ext4_mb_check_group_pa(ext4_fsblk_t goal_block,
+			struct ext4_prealloc_space *pa,
+			struct ext4_prealloc_space *cpa)
+{
+	ext4_fsblk_t cur_distance, new_distance;
+
+	if (cpa == NULL) {
+		atomic_inc(&pa->pa_count);
+		return pa;
+	}
+	cur_distance = abs(goal_block - cpa->pa_pstart);
+	new_distance = abs(goal_block - pa->pa_pstart);
+
+	if (cur_distance < new_distance)
+		return cpa;
+
+	/* drop the previous reference */
+	atomic_dec(&cpa->pa_count);
+	atomic_inc(&pa->pa_count);
+	return pa;
+}
+
+/*
  * search goal blocks in preallocated space
  */
 static noinline_for_stack int
 ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
 {
+	int order, i;
 	struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
 	struct ext4_locality_group *lg;
-	struct ext4_prealloc_space *pa;
+	struct ext4_prealloc_space *pa, *cpa = NULL;
+	ext4_fsblk_t goal_block;
 
 	/* only data can be preallocated */
 	if (!(ac->ac_flags & EXT4_MB_HINT_DATA))
@@ -3322,22 +3358,38 @@ ext4_mb_use_preallocated(struct ext4_allocation_context *ac)
 	lg = ac->ac_lg;
 	if (lg == NULL)
 		return 0;
+	order  = fls(ac->ac_o_ex.fe_len) - 1;
+	if (order > PREALLOC_TB_SIZE - 1)
+		/* The max size of hash table is PREALLOC_TB_SIZE */
+		order = PREALLOC_TB_SIZE - 1;
+
+	goal_block = ac->ac_g_ex.fe_group * EXT4_BLOCKS_PER_GROUP(ac->ac_sb) +
+		     ac->ac_g_ex.fe_start +
+		     le32_to_cpu(EXT4_SB(ac->ac_sb)->s_es->s_first_data_block);
+	/*
+	 * search for the prealloc space that is having
+	 * minimal distance from the goal block.
+	 */
+	for (i = order; i < PREALLOC_TB_SIZE; i++) {
+		rcu_read_lock();
+		list_for_each_entry_rcu(pa, &lg->lg_prealloc_list[i],
+					pa_inode_list) {
+			spin_lock(&pa->pa_lock);
+			if (pa->pa_deleted == 0 &&
+					pa->pa_free >= ac->ac_o_ex.fe_len) {
 
-	rcu_read_lock();
-	list_for_each_entry_rcu(pa, &lg->lg_prealloc_list, pa_inode_list) {
-		spin_lock(&pa->pa_lock);
-		if (pa->pa_deleted == 0 && pa->pa_free >= ac->ac_o_ex.fe_len) {
-			atomic_inc(&pa->pa_count);
-			ext4_mb_use_group_pa(ac, pa);
+				cpa = ext4_mb_check_group_pa(goal_block,
+								pa, cpa);
+			}
 			spin_unlock(&pa->pa_lock);
-			ac->ac_criteria = 20;
-			rcu_read_unlock();
-			return 1;
 		}
-		spin_unlock(&pa->pa_lock);
+		rcu_read_unlock();
+	}
+	if (cpa) {
+		ext4_mb_use_group_pa(ac, cpa);
+		ac->ac_criteria = 20;
+		return 1;
 	}
-	rcu_read_unlock();
-
 	return 0;
 }
 
@@ -3560,6 +3612,7 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
 	pa->pa_free = pa->pa_len;
 	atomic_set(&pa->pa_count, 1);
 	spin_lock_init(&pa->pa_lock);
+	INIT_LIST_HEAD(&pa->pa_inode_list);
 	pa->pa_deleted = 0;
 	pa->pa_linear = 1;
 
@@ -3580,10 +3633,10 @@ ext4_mb_new_group_pa(struct ext4_allocation_context *ac)
 	list_add(&pa->pa_group_list, &grp->bb_prealloc_list);
 	ext4_unlock_group(sb, ac->ac_b_ex.fe_group);
 
-	spin_lock(pa->pa_obj_lock);
-	list_add_tail_rcu(&pa->pa_inode_list, &lg->lg_prealloc_list);
-	spin_unlock(pa->pa_obj_lock);
-
+	/*
+	 * We will later add the new pa to the right bucket
+	 * after updating the pa_free in ext4_mb_release_context
+	 */
 	return 0;
 }
 
@@ -3733,20 +3786,23 @@ ext4_mb_discard_group_preallocations(struct super_block *sb,
 
 	bitmap_bh = ext4_read_block_bitmap(sb, group);
 	if (bitmap_bh == NULL) {
-		/* error handling here */
-		ext4_mb_release_desc(&e4b);
-		BUG_ON(bitmap_bh == NULL);
+		ext4_error(sb, __func__, "Error in reading block "
+				"bitmap for %lu\n", group);
+		return 0;
 	}
 
 	err = ext4_mb_load_buddy(sb, group, &e4b);
-	BUG_ON(err != 0); /* error handling here */
+	if (err) {
+		ext4_error(sb, __func__, "Error in loading buddy "
+				"information for %lu\n", group);
+		put_bh(bitmap_bh);
+		return 0;
+	}
 
 	if (needed == 0)
 		needed = EXT4_BLOCKS_PER_GROUP(sb) + 1;
 
-	grp = ext4_get_group_info(sb, group);
 	INIT_LIST_HEAD(&list);
-
 	ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
 repeat:
 	ext4_lock_group(sb, group);
@@ -3903,13 +3959,18 @@ repeat:
 		ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, NULL);
 
 		err = ext4_mb_load_buddy(sb, group, &e4b);
-		BUG_ON(err != 0); /* error handling here */
+		if (err) {
+			ext4_error(sb, __func__, "Error in loading buddy "
+					"information for %lu\n", group);
+			continue;
+		}
 
 		bitmap_bh = ext4_read_block_bitmap(sb, group);
 		if (bitmap_bh == NULL) {
-			/* error handling here */
+			ext4_error(sb, __func__, "Error in reading block "
+					"bitmap for %lu\n", group);
 			ext4_mb_release_desc(&e4b);
-			BUG_ON(bitmap_bh == NULL);
+			continue;
 		}
 
 		ext4_lock_group(sb, group);
@@ -4112,22 +4173,168 @@ ext4_mb_initialize_context(struct ext4_allocation_context *ac,
 
 }
 
+static noinline_for_stack void
+ext4_mb_discard_lg_preallocations(struct super_block *sb,
+					struct ext4_locality_group *lg,
+					int order, int total_entries)
+{
+	ext4_group_t group = 0;
+	struct ext4_buddy e4b;
+	struct list_head discard_list;
+	struct ext4_prealloc_space *pa, *tmp;
+	struct ext4_allocation_context *ac;
+
+	mb_debug("discard locality group preallocation\n");
+
+	INIT_LIST_HEAD(&discard_list);
+	ac = kmem_cache_alloc(ext4_ac_cachep, GFP_NOFS);
+
+	spin_lock(&lg->lg_prealloc_lock);
+	list_for_each_entry_rcu(pa, &lg->lg_prealloc_list[order],
+						pa_inode_list) {
+		spin_lock(&pa->pa_lock);
+		if (atomic_read(&pa->pa_count)) {
+			/*
+			 * This is the pa that we just used
+			 * for block allocation. So don't
+			 * free that
+			 */
+			spin_unlock(&pa->pa_lock);
+			continue;
+		}
+		if (pa->pa_deleted) {
+			spin_unlock(&pa->pa_lock);
+			continue;
+		}
+		/* only lg prealloc space */
+		BUG_ON(!pa->pa_linear);
+
+		/* seems this one can be freed ... */
+		pa->pa_deleted = 1;
+		spin_unlock(&pa->pa_lock);
+
+		list_del_rcu(&pa->pa_inode_list);
+		list_add(&pa->u.pa_tmp_list, &discard_list);
+
+		total_entries--;
+		if (total_entries <= 5) {
+			/*
+			 * we want to keep only 5 entries
+			 * allowing it to grow to 8. This
+			 * mak sure we don't call discard
+			 * soon for this list.
+			 */
+			break;
+		}
+	}
+	spin_unlock(&lg->lg_prealloc_lock);
+
+	list_for_each_entry_safe(pa, tmp, &discard_list, u.pa_tmp_list) {
+
+		ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, NULL);
+		if (ext4_mb_load_buddy(sb, group, &e4b)) {
+			ext4_error(sb, __func__, "Error in loading buddy "
+					"information for %lu\n", group);
+			continue;
+		}
+		ext4_lock_group(sb, group);
+		list_del(&pa->pa_group_list);
+		ext4_mb_release_group_pa(&e4b, pa, ac);
+		ext4_unlock_group(sb, group);
+
+		ext4_mb_release_desc(&e4b);
+		list_del(&pa->u.pa_tmp_list);
+		call_rcu(&(pa)->u.pa_rcu, ext4_mb_pa_callback);
+	}
+	if (ac)
+		kmem_cache_free(ext4_ac_cachep, ac);
+}
+
+/*
+ * We have incremented pa_count. So it cannot be freed at this
+ * point. Also we hold lg_mutex. So no parallel allocation is
+ * possible from this lg. That means pa_free cannot be updated.
+ *
+ * A parallel ext4_mb_discard_group_preallocations is possible.
+ * which can cause the lg_prealloc_list to be updated.
+ */
+
+static void ext4_mb_add_n_trim(struct ext4_allocation_context *ac)
+{
+	int order, added = 0, lg_prealloc_count = 1;
+	struct super_block *sb = ac->ac_sb;
+	struct ext4_locality_group *lg = ac->ac_lg;
+	struct ext4_prealloc_space *tmp_pa, *pa = ac->ac_pa;
+
+	order = fls(pa->pa_free) - 1;
+	if (order > PREALLOC_TB_SIZE - 1)
+		/* The max size of hash table is PREALLOC_TB_SIZE */
+		order = PREALLOC_TB_SIZE - 1;
+	/* Add the prealloc space to lg */
+	rcu_read_lock();
+	list_for_each_entry_rcu(tmp_pa, &lg->lg_prealloc_list[order],
+						pa_inode_list) {
+		spin_lock(&tmp_pa->pa_lock);
+		if (tmp_pa->pa_deleted) {
+			spin_unlock(&pa->pa_lock);
+			continue;
+		}
+		if (!added && pa->pa_free < tmp_pa->pa_free) {
+			/* Add to the tail of the previous entry */
+			list_add_tail_rcu(&pa->pa_inode_list,
+						&tmp_pa->pa_inode_list);
+			added = 1;
+			/*
+			 * we want to count the total
+			 * number of entries in the list
+			 */
+		}
+		spin_unlock(&tmp_pa->pa_lock);
+		lg_prealloc_count++;
+	}
+	if (!added)
+		list_add_tail_rcu(&pa->pa_inode_list,
+					&lg->lg_prealloc_list[order]);
+	rcu_read_unlock();
+
+	/* Now trim the list to be not more than 8 elements */
+	if (lg_prealloc_count > 8) {
+		ext4_mb_discard_lg_preallocations(sb, lg,
+						order, lg_prealloc_count);
+		return;
+	}
+	return ;
+}
+
 /*
  * release all resource we used in allocation
  */
 static int ext4_mb_release_context(struct ext4_allocation_context *ac)
 {
-	if (ac->ac_pa) {
-		if (ac->ac_pa->pa_linear) {
+	struct ext4_prealloc_space *pa = ac->ac_pa;
+	if (pa) {
+		if (pa->pa_linear) {
 			/* see comment in ext4_mb_use_group_pa() */
-			spin_lock(&ac->ac_pa->pa_lock);
-			ac->ac_pa->pa_pstart += ac->ac_b_ex.fe_len;
-			ac->ac_pa->pa_lstart += ac->ac_b_ex.fe_len;
-			ac->ac_pa->pa_free -= ac->ac_b_ex.fe_len;
-			ac->ac_pa->pa_len -= ac->ac_b_ex.fe_len;
-			spin_unlock(&ac->ac_pa->pa_lock);
+			spin_lock(&pa->pa_lock);
+			pa->pa_pstart += ac->ac_b_ex.fe_len;
+			pa->pa_lstart += ac->ac_b_ex.fe_len;
+			pa->pa_free -= ac->ac_b_ex.fe_len;
+			pa->pa_len -= ac->ac_b_ex.fe_len;
+			spin_unlock(&pa->pa_lock);
+			/*
+			 * We want to add the pa to the right bucket.
+			 * Remove it from the list and while adding
+			 * make sure the list to which we are adding
+			 * doesn't grow big.
+			 */
+			if (likely(pa->pa_free)) {
+				spin_lock(pa->pa_obj_lock);
+				list_del_rcu(&pa->pa_inode_list);
+				spin_unlock(pa->pa_obj_lock);
+				ext4_mb_add_n_trim(ac);
+			}
 		}
-		ext4_mb_put_pa(ac, ac->ac_sb, ac->ac_pa);
+		ext4_mb_put_pa(ac, ac->ac_sb, pa);
 	}
 	if (ac->ac_bitmap_page)
 		page_cache_release(ac->ac_bitmap_page);
@@ -4420,11 +4627,15 @@ do_more:
 		count -= overflow;
 	}
 	bitmap_bh = ext4_read_block_bitmap(sb, block_group);
-	if (!bitmap_bh)
+	if (!bitmap_bh) {
+		err = -EIO;
 		goto error_return;
+	}
 	gdp = ext4_get_group_desc(sb, block_group, &gd_bh);
-	if (!gdp)
+	if (!gdp) {
+		err = -EIO;
 		goto error_return;
+	}
 
 	if (in_range(ext4_block_bitmap(sb, gdp), block, count) ||
 	    in_range(ext4_inode_bitmap(sb, gdp), block, count) ||
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index bfe6add46bcf..c7c9906c2a75 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -164,11 +164,17 @@ struct ext4_free_extent {
  * Locality group:
  *   we try to group all related changes together
  *   so that writeback can flush/allocate them together as well
+ *   Size of lg_prealloc_list hash is determined by MB_DEFAULT_GROUP_PREALLOC
+ *   (512). We store prealloc space into the hash based on the pa_free blocks
+ *   order value.ie, fls(pa_free)-1;
  */
+#define PREALLOC_TB_SIZE 10
 struct ext4_locality_group {
 	/* for allocator */
-	struct mutex		lg_mutex;	/* to serialize allocates */
-	struct list_head	lg_prealloc_list;/* list of preallocations */
+	/* to serialize allocates */
+	struct mutex		lg_mutex;
+	/* list of preallocations */
+	struct list_head	lg_prealloc_list[PREALLOC_TB_SIZE];
 	spinlock_t		lg_prealloc_lock;
 };
 
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index b9e077ba07e9..46fc0b5b12ba 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -53,7 +53,8 @@ static int finish_range(handle_t *handle, struct inode *inode,
 	 * credit. But below we try to not accumalate too much
 	 * of them by restarting the journal.
 	 */
-	needed = ext4_ext_calc_credits_for_insert(inode, path);
+	needed = ext4_ext_calc_credits_for_single_extent(inode,
+		    lb->last_block - lb->first_block + 1, path);
 
 	/*
 	 * Make sure the credit we accumalated is not really high
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index f000fbe2cd93..b3d35604ea18 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -73,7 +73,7 @@ static int verify_group_input(struct super_block *sb,
 			     "Inode bitmap not in group (block %llu)",
 			     (unsigned long long)input->inode_bitmap);
 	else if (outside(input->inode_table, start, end) ||
-	         outside(itend - 1, start, end))
+		 outside(itend - 1, start, end))
 		ext4_warning(sb, __func__,
 			     "Inode table not in group (blocks %llu-%llu)",
 			     (unsigned long long)input->inode_table, itend - 1);
@@ -104,7 +104,7 @@ static int verify_group_input(struct super_block *sb,
 			     (unsigned long long)input->inode_bitmap,
 			     start, metaend - 1);
 	else if (inside(input->inode_table, start, metaend) ||
-	         inside(itend - 1, start, metaend))
+		 inside(itend - 1, start, metaend))
 		ext4_warning(sb, __func__,
 			     "Inode table (%llu-%llu) overlaps"
 			     "GDT table (%llu-%llu)",
@@ -158,9 +158,9 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh,
 	if (err) {
 		if ((err = ext4_journal_restart(handle, EXT4_MAX_TRANS_DATA)))
 			return err;
-	        if ((err = ext4_journal_get_write_access(handle, bh)))
+		if ((err = ext4_journal_get_write_access(handle, bh)))
 			return err;
-        }
+	}
 
 	return 0;
 }
@@ -416,11 +416,11 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 		       "EXT4-fs: ext4_add_new_gdb: adding group block %lu\n",
 		       gdb_num);
 
-	/*
-	 * If we are not using the primary superblock/GDT copy don't resize,
-	 * because the user tools have no way of handling this.  Probably a
-	 * bad time to do it anyways.
-	 */
+        /*
+         * If we are not using the primary superblock/GDT copy don't resize,
+         * because the user tools have no way of handling this.  Probably a
+         * bad time to do it anyways.
+         */
 	if (EXT4_SB(sb)->s_sbh->b_blocknr !=
 	    le32_to_cpu(EXT4_SB(sb)->s_es->s_first_data_block)) {
 		ext4_warning(sb, __func__,
@@ -507,14 +507,14 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 	return 0;
 
 exit_inode:
-	//ext4_journal_release_buffer(handle, iloc.bh);
+	/* ext4_journal_release_buffer(handle, iloc.bh); */
 	brelse(iloc.bh);
 exit_dindj:
-	//ext4_journal_release_buffer(handle, dind);
+	/* ext4_journal_release_buffer(handle, dind); */
 exit_primary:
-	//ext4_journal_release_buffer(handle, *primary);
+	/* ext4_journal_release_buffer(handle, *primary); */
 exit_sbh:
-	//ext4_journal_release_buffer(handle, *primary);
+	/* ext4_journal_release_buffer(handle, *primary); */
 exit_dind:
 	brelse(dind);
 exit_bh:
@@ -773,7 +773,8 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 
 	if (reserved_gdb || gdb_off == 0) {
 		if (!EXT4_HAS_COMPAT_FEATURE(sb,
-					     EXT4_FEATURE_COMPAT_RESIZE_INODE)){
+					     EXT4_FEATURE_COMPAT_RESIZE_INODE)
+		    || !le16_to_cpu(es->s_reserved_gdt_blocks)) {
 			ext4_warning(sb, __func__,
 				     "No reserved GDT blocks, can't resize");
 			return -EPERM;
@@ -818,12 +819,12 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 	if ((err = ext4_journal_get_write_access(handle, sbi->s_sbh)))
 		goto exit_journal;
 
-	/*
-	 * We will only either add reserved group blocks to a backup group
-	 * or remove reserved blocks for the first group in a new group block.
-	 * Doing both would be mean more complex code, and sane people don't
-	 * use non-sparse filesystems anymore.  This is already checked above.
-	 */
+        /*
+         * We will only either add reserved group blocks to a backup group
+         * or remove reserved blocks for the first group in a new group block.
+         * Doing both would be mean more complex code, and sane people don't
+         * use non-sparse filesystems anymore.  This is already checked above.
+         */
 	if (gdb_off) {
 		primary = sbi->s_group_desc[gdb_num];
 		if ((err = ext4_journal_get_write_access(handle, primary)))
@@ -835,24 +836,24 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 	} else if ((err = add_new_gdb(handle, inode, input, &primary)))
 		goto exit_journal;
 
-	/*
-	 * OK, now we've set up the new group.  Time to make it active.
-	 *
-	 * Current kernels don't lock all allocations via lock_super(),
-	 * so we have to be safe wrt. concurrent accesses the group
-	 * data.  So we need to be careful to set all of the relevant
-	 * group descriptor data etc. *before* we enable the group.
-	 *
-	 * The key field here is sbi->s_groups_count: as long as
-	 * that retains its old value, nobody is going to access the new
-	 * group.
-	 *
-	 * So first we update all the descriptor metadata for the new
-	 * group; then we update the total disk blocks count; then we
-	 * update the groups count to enable the group; then finally we
-	 * update the free space counts so that the system can start
-	 * using the new disk blocks.
-	 */
+        /*
+         * OK, now we've set up the new group.  Time to make it active.
+         *
+         * Current kernels don't lock all allocations via lock_super(),
+         * so we have to be safe wrt. concurrent accesses the group
+         * data.  So we need to be careful to set all of the relevant
+         * group descriptor data etc. *before* we enable the group.
+         *
+         * The key field here is sbi->s_groups_count: as long as
+         * that retains its old value, nobody is going to access the new
+         * group.
+         *
+         * So first we update all the descriptor metadata for the new
+         * group; then we update the total disk blocks count; then we
+         * update the groups count to enable the group; then finally we
+         * update the free space counts so that the system can start
+         * using the new disk blocks.
+         */
 
 	/* Update group descriptor block for new group */
 	gdp = (struct ext4_group_desc *)((char *)primary->b_data +
@@ -946,7 +947,8 @@ exit_put:
 	return err;
 } /* ext4_group_add */
 
-/* Extend the filesystem to the new number of blocks specified.  This entry
+/*
+ * Extend the filesystem to the new number of blocks specified.  This entry
  * point is only used to extend the current filesystem to the end of the last
  * existing group.  It can be accessed via ioctl, or by "remount,resize=<size>"
  * for emergencies (because it has no dependencies on reserved blocks).
@@ -1024,7 +1026,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
 			     o_blocks_count + add, add);
 
 	/* See if the device is actually as big as what was requested */
-	bh = sb_bread(sb, o_blocks_count + add -1);
+	bh = sb_bread(sb, o_blocks_count + add - 1);
 	if (!bh) {
 		ext4_warning(sb, __func__,
 			     "can't read last block, resize aborted");
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 1e69f29a8c55..566344b926b7 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -49,20 +49,19 @@ static int ext4_load_journal(struct super_block *, struct ext4_super_block *,
 			     unsigned long journal_devnum);
 static int ext4_create_journal(struct super_block *, struct ext4_super_block *,
 			       unsigned int);
-static void ext4_commit_super (struct super_block * sb,
-			       struct ext4_super_block * es,
-			       int sync);
-static void ext4_mark_recovery_complete(struct super_block * sb,
-					struct ext4_super_block * es);
-static void ext4_clear_journal_err(struct super_block * sb,
-				   struct ext4_super_block * es);
+static void ext4_commit_super(struct super_block *sb,
+			      struct ext4_super_block *es, int sync);
+static void ext4_mark_recovery_complete(struct super_block *sb,
+					struct ext4_super_block *es);
+static void ext4_clear_journal_err(struct super_block *sb,
+				   struct ext4_super_block *es);
 static int ext4_sync_fs(struct super_block *sb, int wait);
-static const char *ext4_decode_error(struct super_block * sb, int errno,
+static const char *ext4_decode_error(struct super_block *sb, int errno,
 				     char nbuf[16]);
-static int ext4_remount (struct super_block * sb, int * flags, char * data);
-static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf);
+static int ext4_remount(struct super_block *sb, int *flags, char *data);
+static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf);
 static void ext4_unlockfs(struct super_block *sb);
-static void ext4_write_super (struct super_block * sb);
+static void ext4_write_super(struct super_block *sb);
 static void ext4_write_super_lockfs(struct super_block *sb);
 
 
@@ -211,15 +210,15 @@ static void ext4_handle_error(struct super_block *sb)
 	if (sb->s_flags & MS_RDONLY)
 		return;
 
-	if (!test_opt (sb, ERRORS_CONT)) {
+	if (!test_opt(sb, ERRORS_CONT)) {
 		journal_t *journal = EXT4_SB(sb)->s_journal;
 
 		EXT4_SB(sb)->s_mount_opt |= EXT4_MOUNT_ABORT;
 		if (journal)
 			jbd2_journal_abort(journal, -EIO);
 	}
-	if (test_opt (sb, ERRORS_RO)) {
-		printk (KERN_CRIT "Remounting filesystem read-only\n");
+	if (test_opt(sb, ERRORS_RO)) {
+		printk(KERN_CRIT "Remounting filesystem read-only\n");
 		sb->s_flags |= MS_RDONLY;
 	}
 	ext4_commit_super(sb, es, 1);
@@ -228,13 +227,13 @@ static void ext4_handle_error(struct super_block *sb)
 			sb->s_id);
 }
 
-void ext4_error (struct super_block * sb, const char * function,
-		 const char * fmt, ...)
+void ext4_error(struct super_block *sb, const char *function,
+		const char *fmt, ...)
 {
 	va_list args;
 
 	va_start(args, fmt);
-	printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function);
+	printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
 	vprintk(fmt, args);
 	printk("\n");
 	va_end(args);
@@ -242,7 +241,7 @@ void ext4_error (struct super_block * sb, const char * function,
 	ext4_handle_error(sb);
 }
 
-static const char *ext4_decode_error(struct super_block * sb, int errno,
+static const char *ext4_decode_error(struct super_block *sb, int errno,
 				     char nbuf[16])
 {
 	char *errstr = NULL;
@@ -278,8 +277,7 @@ static const char *ext4_decode_error(struct super_block * sb, int errno,
 /* __ext4_std_error decodes expected errors from journaling functions
  * automatically and invokes the appropriate error response.  */
 
-void __ext4_std_error (struct super_block * sb, const char * function,
-		       int errno)
+void __ext4_std_error(struct super_block *sb, const char *function, int errno)
 {
 	char nbuf[16];
 	const char *errstr;
@@ -292,8 +290,8 @@ void __ext4_std_error (struct super_block * sb, const char * function,
 		return;
 
 	errstr = ext4_decode_error(sb, errno, nbuf);
-	printk (KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n",
-		sb->s_id, function, errstr);
+	printk(KERN_CRIT "EXT4-fs error (device %s) in %s: %s\n",
+	       sb->s_id, function, errstr);
 
 	ext4_handle_error(sb);
 }
@@ -308,15 +306,15 @@ void __ext4_std_error (struct super_block * sb, const char * function,
  * case we take the easy way out and panic immediately.
  */
 
-void ext4_abort (struct super_block * sb, const char * function,
-		 const char * fmt, ...)
+void ext4_abort(struct super_block *sb, const char *function,
+		const char *fmt, ...)
 {
 	va_list args;
 
-	printk (KERN_CRIT "ext4_abort called.\n");
+	printk(KERN_CRIT "ext4_abort called.\n");
 
 	va_start(args, fmt);
-	printk(KERN_CRIT "EXT4-fs error (device %s): %s: ",sb->s_id, function);
+	printk(KERN_CRIT "EXT4-fs error (device %s): %s: ", sb->s_id, function);
 	vprintk(fmt, args);
 	printk("\n");
 	va_end(args);
@@ -334,8 +332,8 @@ void ext4_abort (struct super_block * sb, const char * function,
 	jbd2_journal_abort(EXT4_SB(sb)->s_journal, -EIO);
 }
 
-void ext4_warning (struct super_block * sb, const char * function,
-		   const char * fmt, ...)
+void ext4_warning(struct super_block *sb, const char *function,
+		  const char *fmt, ...)
 {
 	va_list args;
 
@@ -496,7 +494,7 @@ static void dump_orphan_list(struct super_block *sb, struct ext4_sb_info *sbi)
 	}
 }
 
-static void ext4_put_super (struct super_block * sb)
+static void ext4_put_super(struct super_block *sb)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_super_block *es = sbi->s_es;
@@ -570,6 +568,7 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
 #endif
 	ei->i_block_alloc_info = NULL;
 	ei->vfs_inode.i_version = 1;
+	ei->vfs_inode.i_data.writeback_index = 0;
 	memset(&ei->i_cached_extent, 0, sizeof(struct ext4_ext_cache));
 	INIT_LIST_HEAD(&ei->i_prealloc_list);
 	spin_lock_init(&ei->i_prealloc_lock);
@@ -647,7 +646,8 @@ static void ext4_clear_inode(struct inode *inode)
 				       &EXT4_I(inode)->jinode);
 }
 
-static inline void ext4_show_quota_options(struct seq_file *seq, struct super_block *sb)
+static inline void ext4_show_quota_options(struct seq_file *seq,
+					   struct super_block *sb)
 {
 #if defined(CONFIG_QUOTA)
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -822,8 +822,8 @@ static struct dentry *ext4_fh_to_parent(struct super_block *sb, struct fid *fid,
 }
 
 #ifdef CONFIG_QUOTA
-#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
-#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
+#define QTYPE2NAME(t) ((t) == USRQUOTA?"user":"group")
+#define QTYPE2MOPT(on, t) ((t) == USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
 
 static int ext4_dquot_initialize(struct inode *inode, int type);
 static int ext4_dquot_drop(struct inode *inode);
@@ -991,12 +991,12 @@ static ext4_fsblk_t get_sb_block(void **data)
 	return sb_block;
 }
 
-static int parse_options (char *options, struct super_block *sb,
-			  unsigned int *inum, unsigned long *journal_devnum,
-			  ext4_fsblk_t *n_blocks_count, int is_remount)
+static int parse_options(char *options, struct super_block *sb,
+			 unsigned int *inum, unsigned long *journal_devnum,
+			 ext4_fsblk_t *n_blocks_count, int is_remount)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
-	char * p;
+	char *p;
 	substring_t args[MAX_OPT_ARGS];
 	int data_opt = 0;
 	int option;
@@ -1009,7 +1009,7 @@ static int parse_options (char *options, struct super_block *sb,
 	if (!options)
 		return 1;
 
-	while ((p = strsep (&options, ",")) != NULL) {
+	while ((p = strsep(&options, ",")) != NULL) {
 		int token;
 		if (!*p)
 			continue;
@@ -1017,16 +1017,16 @@ static int parse_options (char *options, struct super_block *sb,
 		token = match_token(p, tokens, args);
 		switch (token) {
 		case Opt_bsd_df:
-			clear_opt (sbi->s_mount_opt, MINIX_DF);
+			clear_opt(sbi->s_mount_opt, MINIX_DF);
 			break;
 		case Opt_minix_df:
-			set_opt (sbi->s_mount_opt, MINIX_DF);
+			set_opt(sbi->s_mount_opt, MINIX_DF);
 			break;
 		case Opt_grpid:
-			set_opt (sbi->s_mount_opt, GRPID);
+			set_opt(sbi->s_mount_opt, GRPID);
 			break;
 		case Opt_nogrpid:
-			clear_opt (sbi->s_mount_opt, GRPID);
+			clear_opt(sbi->s_mount_opt, GRPID);
 			break;
 		case Opt_resuid:
 			if (match_int(&args[0], &option))
@@ -1043,41 +1043,41 @@ static int parse_options (char *options, struct super_block *sb,
 			/* *sb_block = match_int(&args[0]); */
 			break;
 		case Opt_err_panic:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			set_opt (sbi->s_mount_opt, ERRORS_PANIC);
+			clear_opt(sbi->s_mount_opt, ERRORS_CONT);
+			clear_opt(sbi->s_mount_opt, ERRORS_RO);
+			set_opt(sbi->s_mount_opt, ERRORS_PANIC);
 			break;
 		case Opt_err_ro:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_RO);
+			clear_opt(sbi->s_mount_opt, ERRORS_CONT);
+			clear_opt(sbi->s_mount_opt, ERRORS_PANIC);
+			set_opt(sbi->s_mount_opt, ERRORS_RO);
 			break;
 		case Opt_err_cont:
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_CONT);
+			clear_opt(sbi->s_mount_opt, ERRORS_RO);
+			clear_opt(sbi->s_mount_opt, ERRORS_PANIC);
+			set_opt(sbi->s_mount_opt, ERRORS_CONT);
 			break;
 		case Opt_nouid32:
-			set_opt (sbi->s_mount_opt, NO_UID32);
+			set_opt(sbi->s_mount_opt, NO_UID32);
 			break;
 		case Opt_nocheck:
-			clear_opt (sbi->s_mount_opt, CHECK);
+			clear_opt(sbi->s_mount_opt, CHECK);
 			break;
 		case Opt_debug:
-			set_opt (sbi->s_mount_opt, DEBUG);
+			set_opt(sbi->s_mount_opt, DEBUG);
 			break;
 		case Opt_oldalloc:
-			set_opt (sbi->s_mount_opt, OLDALLOC);
+			set_opt(sbi->s_mount_opt, OLDALLOC);
 			break;
 		case Opt_orlov:
-			clear_opt (sbi->s_mount_opt, OLDALLOC);
+			clear_opt(sbi->s_mount_opt, OLDALLOC);
 			break;
 #ifdef CONFIG_EXT4DEV_FS_XATTR
 		case Opt_user_xattr:
-			set_opt (sbi->s_mount_opt, XATTR_USER);
+			set_opt(sbi->s_mount_opt, XATTR_USER);
 			break;
 		case Opt_nouser_xattr:
-			clear_opt (sbi->s_mount_opt, XATTR_USER);
+			clear_opt(sbi->s_mount_opt, XATTR_USER);
 			break;
 #else
 		case Opt_user_xattr:
@@ -1115,7 +1115,7 @@ static int parse_options (char *options, struct super_block *sb,
 				       "journal on remount\n");
 				return 0;
 			}
-			set_opt (sbi->s_mount_opt, UPDATE_JOURNAL);
+			set_opt(sbi->s_mount_opt, UPDATE_JOURNAL);
 			break;
 		case Opt_journal_inum:
 			if (is_remount) {
@@ -1145,7 +1145,7 @@ static int parse_options (char *options, struct super_block *sb,
 			set_opt(sbi->s_mount_opt, JOURNAL_CHECKSUM);
 			break;
 		case Opt_noload:
-			set_opt (sbi->s_mount_opt, NOLOAD);
+			set_opt(sbi->s_mount_opt, NOLOAD);
 			break;
 		case Opt_commit:
 			if (match_int(&args[0], &option))
@@ -1331,7 +1331,7 @@ set_qf_format:
 					"on this filesystem, use tune2fs\n");
 				return 0;
 			}
-			set_opt (sbi->s_mount_opt, EXTENTS);
+			set_opt(sbi->s_mount_opt, EXTENTS);
 			break;
 		case Opt_noextents:
 			/*
@@ -1348,7 +1348,7 @@ set_qf_format:
 						"-o noextents options\n");
 				return 0;
 			}
-			clear_opt (sbi->s_mount_opt, EXTENTS);
+			clear_opt(sbi->s_mount_opt, EXTENTS);
 			break;
 		case Opt_i_version:
 			set_opt(sbi->s_mount_opt, I_VERSION);
@@ -1374,9 +1374,9 @@ set_qf_format:
 			set_opt(sbi->s_mount_opt, DELALLOC);
 			break;
 		default:
-			printk (KERN_ERR
-				"EXT4-fs: Unrecognized mount option \"%s\" "
-				"or missing value\n", p);
+			printk(KERN_ERR
+			       "EXT4-fs: Unrecognized mount option \"%s\" "
+			       "or missing value\n", p);
 			return 0;
 		}
 	}
@@ -1423,31 +1423,31 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
 	int res = 0;
 
 	if (le32_to_cpu(es->s_rev_level) > EXT4_MAX_SUPP_REV) {
-		printk (KERN_ERR "EXT4-fs warning: revision level too high, "
-			"forcing read-only mode\n");
+		printk(KERN_ERR "EXT4-fs warning: revision level too high, "
+		       "forcing read-only mode\n");
 		res = MS_RDONLY;
 	}
 	if (read_only)
 		return res;
 	if (!(sbi->s_mount_state & EXT4_VALID_FS))
-		printk (KERN_WARNING "EXT4-fs warning: mounting unchecked fs, "
-			"running e2fsck is recommended\n");
+		printk(KERN_WARNING "EXT4-fs warning: mounting unchecked fs, "
+		       "running e2fsck is recommended\n");
 	else if ((sbi->s_mount_state & EXT4_ERROR_FS))
-		printk (KERN_WARNING
-			"EXT4-fs warning: mounting fs with errors, "
-			"running e2fsck is recommended\n");
+		printk(KERN_WARNING
+		       "EXT4-fs warning: mounting fs with errors, "
+		       "running e2fsck is recommended\n");
 	else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
 		 le16_to_cpu(es->s_mnt_count) >=
 		 (unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
-		printk (KERN_WARNING
-			"EXT4-fs warning: maximal mount count reached, "
-			"running e2fsck is recommended\n");
+		printk(KERN_WARNING
+		       "EXT4-fs warning: maximal mount count reached, "
+		       "running e2fsck is recommended\n");
 	else if (le32_to_cpu(es->s_checkinterval) &&
 		(le32_to_cpu(es->s_lastcheck) +
 			le32_to_cpu(es->s_checkinterval) <= get_seconds()))
-		printk (KERN_WARNING
-			"EXT4-fs warning: checktime reached, "
-			"running e2fsck is recommended\n");
+		printk(KERN_WARNING
+		       "EXT4-fs warning: checktime reached, "
+		       "running e2fsck is recommended\n");
 #if 0
 		/* @@@ We _will_ want to clear the valid bit if we find
 		 * inconsistencies, to force a fsck at reboot.  But for
@@ -1506,14 +1506,13 @@ static int ext4_fill_flex_info(struct super_block *sb)
 
 	flex_group_count = (sbi->s_groups_count + groups_per_flex - 1) /
 		groups_per_flex;
-	sbi->s_flex_groups = kmalloc(flex_group_count *
+	sbi->s_flex_groups = kzalloc(flex_group_count *
 				     sizeof(struct flex_groups), GFP_KERNEL);
 	if (sbi->s_flex_groups == NULL) {
-		printk(KERN_ERR "EXT4-fs: not enough memory\n");
+		printk(KERN_ERR "EXT4-fs: not enough memory for "
+				"%lu flex groups\n", flex_group_count);
 		goto failed;
 	}
-	memset(sbi->s_flex_groups, 0, flex_group_count *
-	       sizeof(struct flex_groups));
 
 	gdp = ext4_get_group_desc(sb, 1, &bh);
 	block_bitmap = ext4_block_bitmap(sb, gdp) - 1;
@@ -1597,16 +1596,14 @@ static int ext4_check_descriptors(struct super_block *sb)
 				(EXT4_BLOCKS_PER_GROUP(sb) - 1);
 
 		block_bitmap = ext4_block_bitmap(sb, gdp);
-		if (block_bitmap < first_block || block_bitmap > last_block)
-		{
+		if (block_bitmap < first_block || block_bitmap > last_block) {
 			printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
 			       "Block bitmap for group %lu not in group "
 			       "(block %llu)!", i, block_bitmap);
 			return 0;
 		}
 		inode_bitmap = ext4_inode_bitmap(sb, gdp);
-		if (inode_bitmap < first_block || inode_bitmap > last_block)
-		{
+		if (inode_bitmap < first_block || inode_bitmap > last_block) {
 			printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
 			       "Inode bitmap for group %lu not in group "
 			       "(block %llu)!", i, inode_bitmap);
@@ -1614,26 +1611,28 @@ static int ext4_check_descriptors(struct super_block *sb)
 		}
 		inode_table = ext4_inode_table(sb, gdp);
 		if (inode_table < first_block ||
-		    inode_table + sbi->s_itb_per_group - 1 > last_block)
-		{
+		    inode_table + sbi->s_itb_per_group - 1 > last_block) {
 			printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
 			       "Inode table for group %lu not in group "
 			       "(block %llu)!", i, inode_table);
 			return 0;
 		}
+		spin_lock(sb_bgl_lock(sbi, i));
 		if (!ext4_group_desc_csum_verify(sbi, i, gdp)) {
 			printk(KERN_ERR "EXT4-fs: ext4_check_descriptors: "
 			       "Checksum for group %lu failed (%u!=%u)\n",
 			       i, le16_to_cpu(ext4_group_desc_csum(sbi, i,
 			       gdp)), le16_to_cpu(gdp->bg_checksum));
-			return 0;
+			if (!(sb->s_flags & MS_RDONLY))
+				return 0;
 		}
+		spin_unlock(sb_bgl_lock(sbi, i));
 		if (!flexbg_flag)
 			first_block += EXT4_BLOCKS_PER_GROUP(sb);
 	}
 
 	ext4_free_blocks_count_set(sbi->s_es, ext4_count_free_blocks(sb));
-	sbi->s_es->s_free_inodes_count=cpu_to_le32(ext4_count_free_inodes(sb));
+	sbi->s_es->s_free_inodes_count = cpu_to_le32(ext4_count_free_inodes(sb));
 	return 1;
 }
 
@@ -1654,8 +1653,8 @@ static int ext4_check_descriptors(struct super_block *sb)
  * e2fsck was run on this filesystem, and it must have already done the orphan
  * inode cleanup for us, so we can safely abort without any further action.
  */
-static void ext4_orphan_cleanup (struct super_block * sb,
-				 struct ext4_super_block * es)
+static void ext4_orphan_cleanup(struct super_block *sb,
+				struct ext4_super_block *es)
 {
 	unsigned int s_flags = sb->s_flags;
 	int nr_orphans = 0, nr_truncates = 0;
@@ -1732,7 +1731,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
 		iput(inode);  /* The delete magic happens here! */
 	}
 
-#define PLURAL(x) (x), ((x)==1) ? "" : "s"
+#define PLURAL(x) (x), ((x) == 1) ? "" : "s"
 
 	if (nr_orphans)
 		printk(KERN_INFO "EXT4-fs: %s: %d orphan inode%s deleted\n",
@@ -1899,12 +1898,12 @@ static unsigned long ext4_get_stripe_size(struct ext4_sb_info *sbi)
 	return 0;
 }
 
-static int ext4_fill_super (struct super_block *sb, void *data, int silent)
+static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 				__releases(kernel_lock)
 				__acquires(kernel_lock)
 
 {
-	struct buffer_head * bh;
+	struct buffer_head *bh;
 	struct ext4_super_block *es = NULL;
 	struct ext4_sb_info *sbi;
 	ext4_fsblk_t block;
@@ -1953,7 +1952,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 	}
 
 	if (!(bh = sb_bread(sb, logical_sb_block))) {
-		printk (KERN_ERR "EXT4-fs: unable to read superblock\n");
+		printk(KERN_ERR "EXT4-fs: unable to read superblock\n");
 		goto out_fail;
 	}
 	/*
@@ -2026,8 +2025,8 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 	set_opt(sbi->s_mount_opt, DELALLOC);
 
 
-	if (!parse_options ((char *) data, sb, &journal_inum, &journal_devnum,
-			    NULL, 0))
+	if (!parse_options((char *) data, sb, &journal_inum, &journal_devnum,
+			   NULL, 0))
 		goto failed_mount;
 
 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
@@ -2102,7 +2101,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 			goto failed_mount;
 		}
 
-		brelse (bh);
+		brelse(bh);
 		logical_sb_block = sb_block * EXT4_MIN_BLOCK_SIZE;
 		offset = do_div(logical_sb_block, blocksize);
 		bh = sb_bread(sb, logical_sb_block);
@@ -2114,8 +2113,8 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 		es = (struct ext4_super_block *)(((char *)bh->b_data) + offset);
 		sbi->s_es = es;
 		if (es->s_magic != cpu_to_le16(EXT4_SUPER_MAGIC)) {
-			printk (KERN_ERR
-				"EXT4-fs: Magic mismatch, very weird !\n");
+			printk(KERN_ERR
+			       "EXT4-fs: Magic mismatch, very weird !\n");
 			goto failed_mount;
 		}
 	}
@@ -2132,9 +2131,9 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 		if ((sbi->s_inode_size < EXT4_GOOD_OLD_INODE_SIZE) ||
 		    (!is_power_of_2(sbi->s_inode_size)) ||
 		    (sbi->s_inode_size > blocksize)) {
-			printk (KERN_ERR
-				"EXT4-fs: unsupported inode size: %d\n",
-				sbi->s_inode_size);
+			printk(KERN_ERR
+			       "EXT4-fs: unsupported inode size: %d\n",
+			       sbi->s_inode_size);
 			goto failed_mount;
 		}
 		if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE)
@@ -2166,20 +2165,20 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 	sbi->s_mount_state = le16_to_cpu(es->s_state);
 	sbi->s_addr_per_block_bits = ilog2(EXT4_ADDR_PER_BLOCK(sb));
 	sbi->s_desc_per_block_bits = ilog2(EXT4_DESC_PER_BLOCK(sb));
-	for (i=0; i < 4; i++)
+	for (i = 0; i < 4; i++)
 		sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
 	sbi->s_def_hash_version = es->s_def_hash_version;
 
 	if (sbi->s_blocks_per_group > blocksize * 8) {
-		printk (KERN_ERR
-			"EXT4-fs: #blocks per group too big: %lu\n",
-			sbi->s_blocks_per_group);
+		printk(KERN_ERR
+		       "EXT4-fs: #blocks per group too big: %lu\n",
+		       sbi->s_blocks_per_group);
 		goto failed_mount;
 	}
 	if (sbi->s_inodes_per_group > blocksize * 8) {
-		printk (KERN_ERR
-			"EXT4-fs: #inodes per group too big: %lu\n",
-			sbi->s_inodes_per_group);
+		printk(KERN_ERR
+		       "EXT4-fs: #inodes per group too big: %lu\n",
+		       sbi->s_inodes_per_group);
 		goto failed_mount;
 	}
 
@@ -2213,10 +2212,10 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 	sbi->s_groups_count = blocks_count;
 	db_count = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
 		   EXT4_DESC_PER_BLOCK(sb);
-	sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
+	sbi->s_group_desc = kmalloc(db_count * sizeof(struct buffer_head *),
 				    GFP_KERNEL);
 	if (sbi->s_group_desc == NULL) {
-		printk (KERN_ERR "EXT4-fs: not enough memory\n");
+		printk(KERN_ERR "EXT4-fs: not enough memory\n");
 		goto failed_mount;
 	}
 
@@ -2226,13 +2225,13 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 		block = descriptor_loc(sb, logical_sb_block, i);
 		sbi->s_group_desc[i] = sb_bread(sb, block);
 		if (!sbi->s_group_desc[i]) {
-			printk (KERN_ERR "EXT4-fs: "
-				"can't read group descriptor %d\n", i);
+			printk(KERN_ERR "EXT4-fs: "
+			       "can't read group descriptor %d\n", i);
 			db_count = i;
 			goto failed_mount2;
 		}
 	}
-	if (!ext4_check_descriptors (sb)) {
+	if (!ext4_check_descriptors(sb)) {
 		printk(KERN_ERR "EXT4-fs: group descriptors corrupted!\n");
 		goto failed_mount2;
 	}
@@ -2308,11 +2307,11 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 		    EXT4_SB(sb)->s_journal->j_failed_commit) {
 			printk(KERN_CRIT "EXT4-fs error (device %s): "
 			       "ext4_fill_super: Journal transaction "
-			       "%u is corrupt\n", sb->s_id, 
+			       "%u is corrupt\n", sb->s_id,
 			       EXT4_SB(sb)->s_journal->j_failed_commit);
-			if (test_opt (sb, ERRORS_RO)) {
-				printk (KERN_CRIT
-					"Mounting filesystem read-only\n");
+			if (test_opt(sb, ERRORS_RO)) {
+				printk(KERN_CRIT
+				       "Mounting filesystem read-only\n");
 				sb->s_flags |= MS_RDONLY;
 				EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
 				es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
@@ -2332,9 +2331,9 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 			goto failed_mount3;
 	} else {
 		if (!silent)
-			printk (KERN_ERR
-				"ext4: No journal on filesystem on %s\n",
-				sb->s_id);
+			printk(KERN_ERR
+			       "ext4: No journal on filesystem on %s\n",
+			       sb->s_id);
 		goto failed_mount3;
 	}
 
@@ -2418,7 +2417,7 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 		goto failed_mount4;
 	}
 
-	ext4_setup_super (sb, es, sb->s_flags & MS_RDONLY);
+	ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY);
 
 	/* determine the minimum size of new large inodes, if present */
 	if (sbi->s_inode_size > EXT4_GOOD_OLD_INODE_SIZE) {
@@ -2457,12 +2456,12 @@ static int ext4_fill_super (struct super_block *sb, void *data, int silent)
 	ext4_orphan_cleanup(sb, es);
 	EXT4_SB(sb)->s_mount_state &= ~EXT4_ORPHAN_FS;
 	if (needs_recovery)
-		printk (KERN_INFO "EXT4-fs: recovery complete.\n");
+		printk(KERN_INFO "EXT4-fs: recovery complete.\n");
 	ext4_mark_recovery_complete(sb, es);
-	printk (KERN_INFO "EXT4-fs: mounted filesystem with %s data mode.\n",
-		test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ? "journal":
-		test_opt(sb,DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered":
-		"writeback");
+	printk(KERN_INFO "EXT4-fs: mounted filesystem with %s data mode.\n",
+	       test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ? "journal":
+	       test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_ORDERED_DATA ? "ordered":
+	       "writeback");
 
 	if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
 		printk(KERN_WARNING "EXT4-fs: Ignoring delalloc option - "
@@ -2575,14 +2574,14 @@ static journal_t *ext4_get_journal(struct super_block *sb,
 static journal_t *ext4_get_dev_journal(struct super_block *sb,
 				       dev_t j_dev)
 {
-	struct buffer_head * bh;
+	struct buffer_head *bh;
 	journal_t *journal;
 	ext4_fsblk_t start;
 	ext4_fsblk_t len;
 	int hblock, blocksize;
 	ext4_fsblk_t sb_block;
 	unsigned long offset;
-	struct ext4_super_block * es;
+	struct ext4_super_block *es;
 	struct block_device *bdev;
 
 	bdev = ext4_blkdev_get(j_dev);
@@ -2697,8 +2696,8 @@ static int ext4_load_journal(struct super_block *sb,
 					"unavailable, cannot proceed.\n");
 				return -EROFS;
 			}
-			printk (KERN_INFO "EXT4-fs: write access will "
-					"be enabled during recovery.\n");
+			printk(KERN_INFO "EXT4-fs: write access will "
+			       "be enabled during recovery.\n");
 		}
 	}
 
@@ -2751,8 +2750,8 @@ static int ext4_load_journal(struct super_block *sb,
 	return 0;
 }
 
-static int ext4_create_journal(struct super_block * sb,
-			       struct ext4_super_block * es,
+static int ext4_create_journal(struct super_block *sb,
+			       struct ext4_super_block *es,
 			       unsigned int journal_inum)
 {
 	journal_t *journal;
@@ -2793,9 +2792,8 @@ static int ext4_create_journal(struct super_block * sb,
 	return 0;
 }
 
-static void ext4_commit_super (struct super_block * sb,
-			       struct ext4_super_block * es,
-			       int sync)
+static void ext4_commit_super(struct super_block *sb,
+			      struct ext4_super_block *es, int sync)
 {
 	struct buffer_head *sbh = EXT4_SB(sb)->s_sbh;
 
@@ -2816,8 +2814,8 @@ static void ext4_commit_super (struct super_block * sb,
  * remounting) the filesystem readonly, then we will end up with a
  * consistent fs on disk.  Record that fact.
  */
-static void ext4_mark_recovery_complete(struct super_block * sb,
-					struct ext4_super_block * es)
+static void ext4_mark_recovery_complete(struct super_block *sb,
+					struct ext4_super_block *es)
 {
 	journal_t *journal = EXT4_SB(sb)->s_journal;
 
@@ -2839,8 +2837,8 @@ static void ext4_mark_recovery_complete(struct super_block * sb,
  * has recorded an error from a previous lifetime, move that error to the
  * main filesystem now.
  */
-static void ext4_clear_journal_err(struct super_block * sb,
-				   struct ext4_super_block * es)
+static void ext4_clear_journal_err(struct super_block *sb,
+				   struct ext4_super_block *es)
 {
 	journal_t *journal;
 	int j_errno;
@@ -2865,7 +2863,7 @@ static void ext4_clear_journal_err(struct super_block * sb,
 
 		EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
-		ext4_commit_super (sb, es, 1);
+		ext4_commit_super(sb, es, 1);
 
 		jbd2_journal_clear_err(journal);
 	}
@@ -2898,7 +2896,7 @@ int ext4_force_commit(struct super_block *sb)
  * This implicitly triggers the writebehind on sync().
  */
 
-static void ext4_write_super (struct super_block * sb)
+static void ext4_write_super(struct super_block *sb)
 {
 	if (mutex_trylock(&sb->s_lock) != 0)
 		BUG();
@@ -2954,13 +2952,14 @@ static void ext4_unlockfs(struct super_block *sb)
 	}
 }
 
-static int ext4_remount (struct super_block * sb, int * flags, char * data)
+static int ext4_remount(struct super_block *sb, int *flags, char *data)
 {
-	struct ext4_super_block * es;
+	struct ext4_super_block *es;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	ext4_fsblk_t n_blocks_count = 0;
 	unsigned long old_sb_flags;
 	struct ext4_mount_options old_opts;
+	ext4_group_t g;
 	int err;
 #ifdef CONFIG_QUOTA
 	int i;
@@ -3039,6 +3038,26 @@ static int ext4_remount (struct super_block * sb, int * flags, char * data)
 			}
 
 			/*
+			 * Make sure the group descriptor checksums
+			 * are sane.  If they aren't, refuse to
+			 * remount r/w.
+			 */
+			for (g = 0; g < sbi->s_groups_count; g++) {
+				struct ext4_group_desc *gdp =
+					ext4_get_group_desc(sb, g, NULL);
+
+				if (!ext4_group_desc_csum_verify(sbi, g, gdp)) {
+					printk(KERN_ERR
+	       "EXT4-fs: ext4_remount: "
+		"Checksum for group %lu failed (%u!=%u)\n",
+		g, le16_to_cpu(ext4_group_desc_csum(sbi, g, gdp)),
+					       le16_to_cpu(gdp->bg_checksum));
+					err = -EINVAL;
+					goto restore_opts;
+				}
+			}
+
+			/*
 			 * If we have an unprocessed orphan list hanging
 			 * around from a previously readonly bdev mount,
 			 * require a full umount/remount for now.
@@ -3063,7 +3082,7 @@ static int ext4_remount (struct super_block * sb, int * flags, char * data)
 			sbi->s_mount_state = le16_to_cpu(es->s_state);
 			if ((err = ext4_group_extend(sb, es, n_blocks_count)))
 				goto restore_opts;
-			if (!ext4_setup_super (sb, es, 0))
+			if (!ext4_setup_super(sb, es, 0))
 				sb->s_flags &= ~MS_RDONLY;
 		}
 	}
@@ -3093,7 +3112,7 @@ restore_opts:
 	return err;
 }
 
-static int ext4_statfs (struct dentry * dentry, struct kstatfs * buf)
+static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
 	struct super_block *sb = dentry->d_sb;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
@@ -3331,12 +3350,12 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
 	}
 	/* Journaling quota? */
 	if (EXT4_SB(sb)->s_qf_names[type]) {
-		/* Quotafile not of fs root? */
+		/* Quotafile not in fs root? */
 		if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
 			printk(KERN_WARNING
 				"EXT4-fs: Quota file not on filesystem root. "
 				"Journaled quota will not work.\n");
- 	}
+	}
 
 	/*
 	 * When we journal data on quota file, we have to flush journal to see
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 93c5fdcdad2e..8954208b4893 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1512,7 +1512,7 @@ static inline void ext4_xattr_hash_entry(struct ext4_xattr_header *header,
 	char *name = entry->e_name;
 	int n;
 
-	for (n=0; n < entry->e_name_len; n++) {
+	for (n = 0; n < entry->e_name_len; n++) {
 		hash = (hash << NAME_HASH_SHIFT) ^
 		       (hash >> (8*sizeof(hash) - NAME_HASH_SHIFT)) ^
 		       *name++;
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 8707a8cfa02c..ddde37025ca6 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -313,6 +313,8 @@ static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode)
 	return 0;
 }
 
+#define TIMES_SET_FLAGS	(ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)
+
 int fat_setattr(struct dentry *dentry, struct iattr *attr)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb);
@@ -336,9 +338,9 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
 
 	/* Check for setting the inode time. */
 	ia_valid = attr->ia_valid;
-	if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET)) {
+	if (ia_valid & TIMES_SET_FLAGS) {
 		if (fat_allow_set_time(sbi, inode))
-			attr->ia_valid &= ~(ATTR_MTIME_SET | ATTR_ATIME_SET);
+			attr->ia_valid &= ~TIMES_SET_FLAGS;
 	}
 
 	error = inode_change_ok(inode, attr);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 6d266d793e2c..80ff3381fa21 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -562,26 +562,23 @@ static int fat_write_inode(struct inode *inode, int wait)
 	struct buffer_head *bh;
 	struct msdos_dir_entry *raw_entry;
 	loff_t i_pos;
-	int err = 0;
+	int err;
 
 retry:
 	i_pos = MSDOS_I(inode)->i_pos;
 	if (inode->i_ino == MSDOS_ROOT_INO || !i_pos)
 		return 0;
 
-	lock_super(sb);
 	bh = sb_bread(sb, i_pos >> sbi->dir_per_block_bits);
 	if (!bh) {
 		printk(KERN_ERR "FAT: unable to read inode block "
 		       "for updating (i_pos %lld)\n", i_pos);
-		err = -EIO;
-		goto out;
+		return -EIO;
 	}
 	spin_lock(&sbi->inode_hash_lock);
 	if (i_pos != MSDOS_I(inode)->i_pos) {
 		spin_unlock(&sbi->inode_hash_lock);
 		brelse(bh);
-		unlock_super(sb);
 		goto retry;
 	}
 
@@ -607,11 +604,10 @@ retry:
 	}
 	spin_unlock(&sbi->inode_hash_lock);
 	mark_buffer_dirty(bh);
+	err = 0;
 	if (wait)
 		err = sync_dirty_buffer(bh);
 	brelse(bh);
-out:
-	unlock_super(sb);
 	return err;
 }
 
diff --git a/fs/inode.c b/fs/inode.c
index b6726f644530..0487ddba1397 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -166,6 +166,7 @@ static struct inode *alloc_inode(struct super_block *sb)
 		mapping_set_gfp_mask(mapping, GFP_HIGHUSER_PAGECACHE);
 		mapping->assoc_mapping = NULL;
 		mapping->backing_dev_info = &default_backing_dev_info;
+		mapping->writeback_index = 0;
 
 		/*
 		 * If the block_device provides a backing_dev_info for client
diff --git a/fs/ioprio.c b/fs/ioprio.c
index c4a1c3c65aac..da3cc460d4df 100644
--- a/fs/ioprio.c
+++ b/fs/ioprio.c
@@ -115,11 +115,11 @@ asmlinkage long sys_ioprio_set(int which, int who, int ioprio)
 				pgrp = task_pgrp(current);
 			else
 				pgrp = find_vpid(who);
-			do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
+			do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
 				ret = set_task_ioprio(p, ioprio);
 				if (ret)
 					break;
-			} while_each_pid_task(pgrp, PIDTYPE_PGID, p);
+			} while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
 			break;
 		case IOPRIO_WHO_USER:
 			if (!who)
@@ -204,7 +204,7 @@ asmlinkage long sys_ioprio_get(int which, int who)
 				pgrp = task_pgrp(current);
 			else
 				pgrp = find_vpid(who);
-			do_each_pid_task(pgrp, PIDTYPE_PGID, p) {
+			do_each_pid_thread(pgrp, PIDTYPE_PGID, p) {
 				tmpio = get_task_ioprio(p);
 				if (tmpio < 0)
 					continue;
@@ -212,7 +212,7 @@ asmlinkage long sys_ioprio_get(int which, int who)
 					ret = tmpio;
 				else
 					ret = ioprio_best(ret, tmpio);
-			} while_each_pid_task(pgrp, PIDTYPE_PGID, p);
+			} while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
 			break;
 		case IOPRIO_WHO_USER:
 			if (!who)
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 2eccbfaa1d48..ae08c057e751 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -63,7 +63,7 @@ static void release_buffer_page(struct buffer_head *bh)
 		goto nope;
 
 	/* OK, it's a truncated page */
-	if (TestSetPageLocked(page))
+	if (!trylock_page(page))
 		goto nope;
 
 	page_cache_get(page);
@@ -221,7 +221,7 @@ write_out_data:
 		 * blocking lock_buffer().
 		 */
 		if (buffer_dirty(bh)) {
-			if (test_set_buffer_locked(bh)) {
+			if (!trylock_buffer(bh)) {
 				BUFFER_TRACE(bh, "needs blocking lock");
 				spin_unlock(&journal->j_list_lock);
 				/* Write out all data to prevent deadlocks */
@@ -446,7 +446,7 @@ void journal_commit_transaction(journal_t *journal)
 			spin_lock(&journal->j_list_lock);
 		}
 		if (unlikely(!buffer_uptodate(bh))) {
-			if (TestSetPageLocked(bh->b_page)) {
+			if (!trylock_page(bh->b_page)) {
 				spin_unlock(&journal->j_list_lock);
 				lock_page(bh->b_page);
 				spin_lock(&journal->j_list_lock);
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 8dee32007500..0540ca27a446 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -291,7 +291,7 @@ handle_t *journal_start(journal_t *journal, int nblocks)
 		goto out;
 	}
 
-	lock_acquire(&handle->h_lockdep_map, 0, 0, 0, 2, _THIS_IP_);
+	lock_map_acquire(&handle->h_lockdep_map);
 
 out:
 	return handle;
@@ -1448,7 +1448,7 @@ int journal_stop(handle_t *handle)
 		spin_unlock(&journal->j_state_lock);
 	}
 
-	lock_release(&handle->h_lockdep_map, 1, _THIS_IP_);
+	lock_map_release(&handle->h_lockdep_map);
 
 	jbd_free_handle(handle);
 	return err;
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index f8b3be873226..f2ad061e95ec 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -67,7 +67,7 @@ static void release_buffer_page(struct buffer_head *bh)
 		goto nope;
 
 	/* OK, it's a truncated page */
-	if (TestSetPageLocked(page))
+	if (!trylock_page(page))
 		goto nope;
 
 	page_cache_get(page);
@@ -262,8 +262,18 @@ static int journal_finish_inode_data_buffers(journal_t *journal,
 		jinode->i_flags |= JI_COMMIT_RUNNING;
 		spin_unlock(&journal->j_list_lock);
 		err = filemap_fdatawait(jinode->i_vfs_inode->i_mapping);
-		if (!ret)
-			ret = err;
+		if (err) {
+			/*
+			 * Because AS_EIO is cleared by
+			 * wait_on_page_writeback_range(), set it again so
+			 * that user process can get -EIO from fsync().
+			 */
+			set_bit(AS_EIO,
+				&jinode->i_vfs_inode->i_mapping->flags);
+
+			if (!ret)
+				ret = err;
+		}
 		spin_lock(&journal->j_list_lock);
 		jinode->i_flags &= ~JI_COMMIT_RUNNING;
 		wake_up_bit(&jinode->i_flags, __JI_COMMIT_RUNNING);
@@ -670,8 +680,14 @@ start_journal_io:
 	 * commit block, which happens below in such setting.
 	 */
 	err = journal_finish_inode_data_buffers(journal, commit_transaction);
-	if (err)
-		jbd2_journal_abort(journal, err);
+	if (err) {
+		char b[BDEVNAME_SIZE];
+
+		printk(KERN_WARNING
+			"JBD2: Detected IO errors while flushing file data "
+			"on %s\n", bdevname(journal->j_fs_dev, b));
+		err = 0;
+	}
 
 	/* Lo and behold: we have just managed to send a transaction to
            the log.  Before we can commit it, wait for the IO so far to
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index b26c6d9fe6ae..8207a01c4edb 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -68,7 +68,6 @@ EXPORT_SYMBOL(jbd2_journal_set_features);
 EXPORT_SYMBOL(jbd2_journal_create);
 EXPORT_SYMBOL(jbd2_journal_load);
 EXPORT_SYMBOL(jbd2_journal_destroy);
-EXPORT_SYMBOL(jbd2_journal_update_superblock);
 EXPORT_SYMBOL(jbd2_journal_abort);
 EXPORT_SYMBOL(jbd2_journal_errno);
 EXPORT_SYMBOL(jbd2_journal_ack_err);
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index 4f7cadbb19fa..e5d540588fa9 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -301,7 +301,7 @@ handle_t *jbd2_journal_start(journal_t *journal, int nblocks)
 		goto out;
 	}
 
-	lock_acquire(&handle->h_lockdep_map, 0, 0, 0, 2, _THIS_IP_);
+	lock_map_acquire(&handle->h_lockdep_map);
 out:
 	return handle;
 }
@@ -1279,7 +1279,7 @@ int jbd2_journal_stop(handle_t *handle)
 		spin_unlock(&journal->j_state_lock);
 	}
 
-	lock_release(&handle->h_lockdep_map, 1, _THIS_IP_);
+	lock_map_release(&handle->h_lockdep_map);
 
 	jbd2_free_handle(handle);
 	return err;
diff --git a/fs/jffs2/jffs2_fs_i.h b/fs/jffs2/jffs2_fs_i.h
index 31559f45fdde..4c41db91eaa4 100644
--- a/fs/jffs2/jffs2_fs_i.h
+++ b/fs/jffs2/jffs2_fs_i.h
@@ -12,7 +12,6 @@
 #ifndef _JFFS2_FS_I
 #define _JFFS2_FS_I
 
-#include <linux/version.h>
 #include <linux/rbtree.h>
 #include <linux/posix_acl.h>
 #include <linux/mutex.h>
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 399444639337..4a714f64515b 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -83,7 +83,7 @@ nlm4svc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
 {
 	struct nlm_host	*host;
 	struct nlm_file	*file;
-	int rc = rpc_success;
+	__be32 rc = rpc_success;
 
 	dprintk("lockd: TEST4        called\n");
 	resp->cookie = argp->cookie;
@@ -116,7 +116,7 @@ nlm4svc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
 {
 	struct nlm_host	*host;
 	struct nlm_file	*file;
-	int rc = rpc_success;
+	__be32 rc = rpc_success;
 
 	dprintk("lockd: LOCK          called\n");
 
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 76019d2ff72d..76262c1986f2 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -112,7 +112,7 @@ nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_args *argp,
 {
 	struct nlm_host	*host;
 	struct nlm_file	*file;
-	int rc = rpc_success;
+	__be32 rc = rpc_success;
 
 	dprintk("lockd: TEST          called\n");
 	resp->cookie = argp->cookie;
@@ -146,7 +146,7 @@ nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_args *argp,
 {
 	struct nlm_host	*host;
 	struct nlm_file	*file;
-	int rc = rpc_success;
+	__be32 rc = rpc_success;
 
 	dprintk("lockd: LOCK          called\n");
 
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index 8478fc25daee..46763d1cd397 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -127,7 +127,7 @@ enum {
 	Opt_err
 };
 
-static match_table_t __initconst tokens = {
+static match_table_t __initdata tokens = {
 	{Opt_port, "port=%u"},
 	{Opt_rsize, "rsize=%u"},
 	{Opt_wsize, "wsize=%u"},
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 33bfcf09db46..9dc036f18356 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1023,7 +1023,7 @@ exp_export(struct nfsctl_export *nxp)
 	/* Look up the dentry */
 	err = path_lookup(nxp->ex_path, 0, &nd);
 	if (err)
-		goto out_unlock;
+		goto out_put_clp;
 	err = -EINVAL;
 
 	exp = exp_get_by_name(clp, nd.path.mnt, nd.path.dentry, NULL);
@@ -1090,9 +1090,9 @@ finish:
 		exp_put(exp);
 	if (fsid_key && !IS_ERR(fsid_key))
 		cache_put(&fsid_key->h, &svc_expkey_cache);
-	if (clp)
-		auth_domain_put(clp);
 	path_put(&nd.path);
+out_put_clp:
+	auth_domain_put(clp);
 out_unlock:
 	exp_writeunlock();
 out:
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index eef1629806f5..2e51adac65de 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -851,7 +851,7 @@ struct nfsd4_operation {
 
 static struct nfsd4_operation nfsd4_ops[];
 
-static inline char *nfsd4_op_name(unsigned opnum);
+static const char *nfsd4_op_name(unsigned opnum);
 
 /*
  * COMPOUND call.
@@ -1116,8 +1116,7 @@ static struct nfsd4_operation nfsd4_ops[OP_RELEASE_LOCKOWNER+1] = {
 	},
 };
 
-static inline char *
-nfsd4_op_name(unsigned opnum)
+static const char *nfsd4_op_name(unsigned opnum)
 {
 	if (opnum < ARRAY_SIZE(nfsd4_ops))
 		return nfsd4_ops[opnum].op_name;
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index 00e9ccde8e42..b38f944f0667 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -1194,7 +1194,7 @@ lock_retry_remap:
 		tbh = bhs[i];
 		if (!tbh)
 			continue;
-		if (unlikely(test_set_buffer_locked(tbh)))
+		if (!trylock_buffer(tbh))
 			BUG();
 		/* The buffer dirty state is now irrelevant, just clean it. */
 		clear_buffer_dirty(tbh);
diff --git a/fs/ntfs/compress.c b/fs/ntfs/compress.c
index 33ff314cc507..9669541d0119 100644
--- a/fs/ntfs/compress.c
+++ b/fs/ntfs/compress.c
@@ -665,7 +665,7 @@ lock_retry_remap:
 	for (i = 0; i < nr_bhs; i++) {
 		struct buffer_head *tbh = bhs[i];
 
-		if (unlikely(test_set_buffer_locked(tbh)))
+		if (!trylock_buffer(tbh))
 			continue;
 		if (unlikely(buffer_uptodate(tbh))) {
 			unlock_buffer(tbh);
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index 790defb847e7..17d32ca6bc35 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -586,7 +586,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
 		for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) {
 			struct buffer_head *tbh = bhs[i_bhs];
 
-			if (unlikely(test_set_buffer_locked(tbh)))
+			if (!trylock_buffer(tbh))
 				BUG();
 			BUG_ON(!buffer_uptodate(tbh));
 			clear_buffer_dirty(tbh);
@@ -779,7 +779,7 @@ int write_mft_record_nolock(ntfs_inode *ni, MFT_RECORD *m, int sync)
 	for (i_bhs = 0; i_bhs < nr_bhs; i_bhs++) {
 		struct buffer_head *tbh = bhs[i_bhs];
 
-		if (unlikely(test_set_buffer_locked(tbh)))
+		if (!trylock_buffer(tbh))
 			BUG();
 		BUG_ON(!buffer_uptodate(tbh));
 		clear_buffer_dirty(tbh);
diff --git a/fs/ntfs/namei.c b/fs/ntfs/namei.c
index e1781c8b1650..9e8a95be7a1e 100644
--- a/fs/ntfs/namei.c
+++ b/fs/ntfs/namei.c
@@ -174,7 +174,6 @@ static struct dentry *ntfs_lookup(struct inode *dir_ino, struct dentry *dent,
 	// TODO: Consider moving this lot to a separate function! (AIA)
 handle_name:
    {
-	struct dentry *real_dent, *new_dent;
 	MFT_RECORD *m;
 	ntfs_attr_search_ctx *ctx;
 	ntfs_inode *ni = NTFS_I(dent_inode);
@@ -255,93 +254,9 @@ handle_name:
 	}
 	nls_name.hash = full_name_hash(nls_name.name, nls_name.len);
 
-	/*
-	 * Note: No need for dent->d_lock lock as i_mutex is held on the
-	 * parent inode.
-	 */
-
-	/* Does a dentry matching the nls_name exist already? */
-	real_dent = d_lookup(dent->d_parent, &nls_name);
-	/* If not, create it now. */
-	if (!real_dent) {
-		real_dent = d_alloc(dent->d_parent, &nls_name);
-		kfree(nls_name.name);
-		if (!real_dent) {
-			err = -ENOMEM;
-			goto err_out;
-		}
-		new_dent = d_splice_alias(dent_inode, real_dent);
-		if (new_dent)
-			dput(real_dent);
-		else
-			new_dent = real_dent;
-		ntfs_debug("Done.  (Created new dentry.)");
-		return new_dent;
-	}
+	dent = d_add_ci(dent, dent_inode, &nls_name);
 	kfree(nls_name.name);
-	/* Matching dentry exists, check if it is negative. */
-	if (real_dent->d_inode) {
-		if (unlikely(real_dent->d_inode != dent_inode)) {
-			/* This can happen because bad inodes are unhashed. */
-			BUG_ON(!is_bad_inode(dent_inode));
-			BUG_ON(!is_bad_inode(real_dent->d_inode));
-		}
-		/*
-		 * Already have the inode and the dentry attached, decrement
-		 * the reference count to balance the ntfs_iget() we did
-		 * earlier on.  We found the dentry using d_lookup() so it
-		 * cannot be disconnected and thus we do not need to worry
-		 * about any NFS/disconnectedness issues here.
-		 */
-		iput(dent_inode);
-		ntfs_debug("Done.  (Already had inode and dentry.)");
-		return real_dent;
-	}
-	/*
-	 * Negative dentry: instantiate it unless the inode is a directory and
-	 * has a 'disconnected' dentry (i.e. IS_ROOT and DCACHE_DISCONNECTED),
-	 * in which case d_move() that in place of the found dentry.
-	 */
-	if (!S_ISDIR(dent_inode->i_mode)) {
-		/* Not a directory; everything is easy. */
-		d_instantiate(real_dent, dent_inode);
-		ntfs_debug("Done.  (Already had negative file dentry.)");
-		return real_dent;
-	}
-	spin_lock(&dcache_lock);
-	if (list_empty(&dent_inode->i_dentry)) {
-		/*
-		 * Directory without a 'disconnected' dentry; we need to do
-		 * d_instantiate() by hand because it takes dcache_lock which
-		 * we already hold.
-		 */
-		list_add(&real_dent->d_alias, &dent_inode->i_dentry);
-		real_dent->d_inode = dent_inode;
-		spin_unlock(&dcache_lock);
-		security_d_instantiate(real_dent, dent_inode);
-		ntfs_debug("Done.  (Already had negative directory dentry.)");
-		return real_dent;
-	}
-	/*
-	 * Directory with a 'disconnected' dentry; get a reference to the
-	 * 'disconnected' dentry.
-	 */
-	new_dent = list_entry(dent_inode->i_dentry.next, struct dentry,
-			d_alias);
-	dget_locked(new_dent);
-	spin_unlock(&dcache_lock);
-	/* Do security vodoo. */
-	security_d_instantiate(real_dent, dent_inode);
-	/* Move new_dent in place of real_dent. */
-	d_move(new_dent, real_dent);
-	/* Balance the ntfs_iget() we did above. */
-	iput(dent_inode);
-	/* Throw away real_dent. */
-	dput(real_dent);
-	/* Use new_dent as the actual dentry. */
-	ntfs_debug("Done.  (Already had negative, disconnected directory "
-			"dentry.)");
-	return new_dent;
+	return dent;
 
 eio_err_out:
 	ntfs_error(vol->sb, "Illegal file name attribute. Run chkdsk.");
diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c
index d8bfa0eb41b2..52276c02f710 100644
--- a/fs/ocfs2/cluster/netdebug.c
+++ b/fs/ocfs2/cluster/netdebug.c
@@ -138,20 +138,20 @@ static int nst_seq_show(struct seq_file *seq, void *v)
 			   "  message id:   %d\n"
 			   "  message type: %u\n"
 			   "  message key:  0x%08x\n"
-			   "  sock acquiry: %lu.%lu\n"
-			   "  send start:   %lu.%lu\n"
-			   "  wait start:   %lu.%lu\n",
+			   "  sock acquiry: %lu.%ld\n"
+			   "  send start:   %lu.%ld\n"
+			   "  wait start:   %lu.%ld\n",
 			   nst, (unsigned long)nst->st_task->pid,
 			   (unsigned long)nst->st_task->tgid,
 			   nst->st_task->comm, nst->st_node,
 			   nst->st_sc, nst->st_id, nst->st_msg_type,
 			   nst->st_msg_key,
 			   nst->st_sock_time.tv_sec,
-			   (unsigned long)nst->st_sock_time.tv_usec,
+			   (long)nst->st_sock_time.tv_usec,
 			   nst->st_send_time.tv_sec,
-			   (unsigned long)nst->st_send_time.tv_usec,
+			   (long)nst->st_send_time.tv_usec,
 			   nst->st_status_time.tv_sec,
-			   nst->st_status_time.tv_usec);
+			   (long)nst->st_status_time.tv_usec);
 	}
 
 	spin_unlock(&o2net_debug_lock);
@@ -276,7 +276,7 @@ static void *sc_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	return sc; /* unused, just needs to be null when done */
 }
 
-#define TV_SEC_USEC(TV) TV.tv_sec, (unsigned long)TV.tv_usec
+#define TV_SEC_USEC(TV) TV.tv_sec, (long)TV.tv_usec
 
 static int sc_seq_show(struct seq_file *seq, void *v)
 {
@@ -309,12 +309,12 @@ static int sc_seq_show(struct seq_file *seq, void *v)
 			   "  remote node:     %s\n"
 			   "  page off:        %zu\n"
 			   "  handshake ok:    %u\n"
-			   "  timer:           %lu.%lu\n"
-			   "  data ready:      %lu.%lu\n"
-			   "  advance start:   %lu.%lu\n"
-			   "  advance stop:    %lu.%lu\n"
-			   "  func start:      %lu.%lu\n"
-			   "  func stop:       %lu.%lu\n"
+			   "  timer:           %lu.%ld\n"
+			   "  data ready:      %lu.%ld\n"
+			   "  advance start:   %lu.%ld\n"
+			   "  advance stop:    %lu.%ld\n"
+			   "  func start:      %lu.%ld\n"
+			   "  func stop:       %lu.%ld\n"
 			   "  func key:        %u\n"
 			   "  func type:       %u\n",
 			   sc,
diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c
index a27d61581bd6..2bcf706d9dd3 100644
--- a/fs/ocfs2/cluster/tcp.c
+++ b/fs/ocfs2/cluster/tcp.c
@@ -143,8 +143,8 @@ static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
 static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc);
 
 #ifdef CONFIG_DEBUG_FS
-void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
-		    u32 msgkey, struct task_struct *task, u8 node)
+static void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+			   u32 msgkey, struct task_struct *task, u8 node)
 {
 	INIT_LIST_HEAD(&nst->st_net_debug_item);
 	nst->st_task = task;
@@ -153,31 +153,61 @@ void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
 	nst->st_node = node;
 }
 
-void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
+static void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
 {
 	do_gettimeofday(&nst->st_sock_time);
 }
 
-void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
+static void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
 {
 	do_gettimeofday(&nst->st_send_time);
 }
 
-void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
+static void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
 {
 	do_gettimeofday(&nst->st_status_time);
 }
 
-void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+static void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
 					 struct o2net_sock_container *sc)
 {
 	nst->st_sc = sc;
 }
 
-void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id)
+static void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id)
 {
 	nst->st_id = msg_id;
 }
+
+#else  /* CONFIG_DEBUG_FS */
+
+static inline void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
+				  u32 msgkey, struct task_struct *task, u8 node)
+{
+}
+
+static inline void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
+{
+}
+
+static inline void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
+{
+}
+
+static inline void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
+{
+}
+
+static inline void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
+						struct o2net_sock_container *sc)
+{
+}
+
+static inline void o2net_set_nst_msg_id(struct o2net_send_tracking *nst,
+					u32 msg_id)
+{
+}
+
 #endif /* CONFIG_DEBUG_FS */
 
 static inline int o2net_reconnect_delay(void)
diff --git a/fs/ocfs2/cluster/tcp_internal.h b/fs/ocfs2/cluster/tcp_internal.h
index 18307ff81b77..8d58cfe410b1 100644
--- a/fs/ocfs2/cluster/tcp_internal.h
+++ b/fs/ocfs2/cluster/tcp_internal.h
@@ -224,42 +224,10 @@ struct o2net_send_tracking {
 	struct timeval			st_send_time;
 	struct timeval			st_status_time;
 };
-
-void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
-		    u32 msgkey, struct task_struct *task, u8 node);
-void o2net_set_nst_sock_time(struct o2net_send_tracking *nst);
-void o2net_set_nst_send_time(struct o2net_send_tracking *nst);
-void o2net_set_nst_status_time(struct o2net_send_tracking *nst);
-void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
-				  struct o2net_sock_container *sc);
-void o2net_set_nst_msg_id(struct o2net_send_tracking *nst, u32 msg_id);
-
 #else
 struct o2net_send_tracking {
 	u32	dummy;
 };
-
-static inline void o2net_init_nst(struct o2net_send_tracking *nst, u32 msgtype,
-				  u32 msgkey, struct task_struct *task, u8 node)
-{
-}
-static inline void o2net_set_nst_sock_time(struct o2net_send_tracking *nst)
-{
-}
-static inline void o2net_set_nst_send_time(struct o2net_send_tracking *nst)
-{
-}
-static inline void o2net_set_nst_status_time(struct o2net_send_tracking *nst)
-{
-}
-static inline void o2net_set_nst_sock_container(struct o2net_send_tracking *nst,
-						struct o2net_sock_container *sc)
-{
-}
-static inline void o2net_set_nst_msg_id(struct o2net_send_tracking *nst,
-					u32 msg_id)
-{
-}
 #endif	/* CONFIG_DEBUG_FS */
 
 #endif /* O2CLUSTER_TCP_INTERNAL_H */
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 8a1875848080..9cce563fd627 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -1300,7 +1300,6 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
 	di->i_size = cpu_to_le64(sb->s_blocksize);
 	di->i_ctime = di->i_mtime = cpu_to_le64(dir->i_ctime.tv_sec);
 	di->i_ctime_nsec = di->i_mtime_nsec = cpu_to_le32(dir->i_ctime.tv_nsec);
-	dir->i_blocks = ocfs2_inode_sector_count(dir);
 
 	/*
 	 * This should never fail as our extent list is empty and all
@@ -1310,9 +1309,15 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
 				  NULL);
 	if (ret) {
 		mlog_errno(ret);
-		goto out;
+		goto out_commit;
 	}
 
+	/*
+	 * Set i_blocks after the extent insert for the most up to
+	 * date ip_clusters value.
+	 */
+	dir->i_blocks = ocfs2_inode_sector_count(dir);
+
 	ret = ocfs2_journal_dirty(handle, di_bh);
 	if (ret) {
 		mlog_errno(ret);
@@ -1336,7 +1341,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
 					  len, 0, NULL);
 		if (ret) {
 			mlog_errno(ret);
-			goto out;
+			goto out_commit;
 		}
 	}
 
diff --git a/fs/ocfs2/journal.c b/fs/ocfs2/journal.c
index 7a37240f7a31..c47bc2a809c2 100644
--- a/fs/ocfs2/journal.c
+++ b/fs/ocfs2/journal.c
@@ -1418,13 +1418,13 @@ int ocfs2_mark_dead_nodes(struct ocfs2_super *osb)
 {
 	unsigned int node_num;
 	int status, i;
+	u32 gen;
 	struct buffer_head *bh = NULL;
 	struct ocfs2_dinode *di;
 
 	/* This is called with the super block cluster lock, so we
 	 * know that the slot map can't change underneath us. */
 
-	spin_lock(&osb->osb_lock);
 	for (i = 0; i < osb->max_slots; i++) {
 		/* Read journal inode to get the recovery generation */
 		status = ocfs2_read_journal_inode(osb, i, &bh, NULL);
@@ -1433,23 +1433,31 @@ int ocfs2_mark_dead_nodes(struct ocfs2_super *osb)
 			goto bail;
 		}
 		di = (struct ocfs2_dinode *)bh->b_data;
-		osb->slot_recovery_generations[i] =
-					ocfs2_get_recovery_generation(di);
+		gen = ocfs2_get_recovery_generation(di);
 		brelse(bh);
 		bh = NULL;
 
+		spin_lock(&osb->osb_lock);
+		osb->slot_recovery_generations[i] = gen;
+
 		mlog(0, "Slot %u recovery generation is %u\n", i,
 		     osb->slot_recovery_generations[i]);
 
-		if (i == osb->slot_num)
+		if (i == osb->slot_num) {
+			spin_unlock(&osb->osb_lock);
 			continue;
+		}
 
 		status = ocfs2_slot_to_node_num_locked(osb, i, &node_num);
-		if (status == -ENOENT)
+		if (status == -ENOENT) {
+			spin_unlock(&osb->osb_lock);
 			continue;
+		}
 
-		if (__ocfs2_recovery_map_test(osb, node_num))
+		if (__ocfs2_recovery_map_test(osb, node_num)) {
+			spin_unlock(&osb->osb_lock);
 			continue;
+		}
 		spin_unlock(&osb->osb_lock);
 
 		/* Ok, we have a slot occupied by another node which
@@ -1465,10 +1473,7 @@ int ocfs2_mark_dead_nodes(struct ocfs2_super *osb)
 			mlog_errno(status);
 			goto bail;
 		}
-
-		spin_lock(&osb->osb_lock);
 	}
-	spin_unlock(&osb->osb_lock);
 
 	status = 0;
 bail:
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 10e149ae5e3a..07f348b8d721 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -97,13 +97,14 @@ static int ocfs2_stack_driver_request(const char *stack_name,
 		goto out;
 	}
 
-	/* Ok, the stack is pinned */
-	p->sp_count++;
 	active_stack = p;
-
 	rc = 0;
 
 out:
+	/* If we found it, pin it */
+	if (!rc)
+		active_stack->sp_count++;
+
 	spin_unlock(&ocfs2_stack_lock);
 	return rc;
 }
diff --git a/fs/omfs/bitmap.c b/fs/omfs/bitmap.c
index 697663b01bae..e1c0ec0ae989 100644
--- a/fs/omfs/bitmap.c
+++ b/fs/omfs/bitmap.c
@@ -92,7 +92,7 @@ int omfs_allocate_block(struct super_block *sb, u64 block)
 	struct buffer_head *bh;
 	struct omfs_sb_info *sbi = OMFS_SB(sb);
 	int bits_per_entry = 8 * sb->s_blocksize;
-	int map, bit;
+	unsigned int map, bit;
 	int ret = 0;
 	u64 tmp;
 
@@ -176,7 +176,8 @@ int omfs_clear_range(struct super_block *sb, u64 block, int count)
 	struct omfs_sb_info *sbi = OMFS_SB(sb);
 	int bits_per_entry = 8 * sb->s_blocksize;
 	u64 tmp;
-	int map, bit, ret;
+	unsigned int map, bit;
+	int ret;
 
 	tmp = block;
 	bit = do_div(tmp, bits_per_entry);
diff --git a/fs/omfs/file.c b/fs/omfs/file.c
index 7e2499053e4d..834b2331f6b3 100644
--- a/fs/omfs/file.c
+++ b/fs/omfs/file.c
@@ -26,6 +26,13 @@ static int omfs_sync_file(struct file *file, struct dentry *dentry,
 	return err ? -EIO : 0;
 }
 
+static u32 omfs_max_extents(struct omfs_sb_info *sbi, int offset)
+{
+	return (sbi->s_sys_blocksize - offset -
+		sizeof(struct omfs_extent)) /
+		sizeof(struct omfs_extent_entry) + 1;
+}
+
 void omfs_make_empty_table(struct buffer_head *bh, int offset)
 {
 	struct omfs_extent *oe = (struct omfs_extent *) &bh->b_data[offset];
@@ -45,6 +52,7 @@ int omfs_shrink_inode(struct inode *inode)
 	struct buffer_head *bh;
 	u64 next, last;
 	u32 extent_count;
+	u32 max_extents;
 	int ret;
 
 	/* traverse extent table, freeing each entry that is greater
@@ -62,15 +70,18 @@ int omfs_shrink_inode(struct inode *inode)
 		goto out;
 
 	oe = (struct omfs_extent *)(&bh->b_data[OMFS_EXTENT_START]);
+	max_extents = omfs_max_extents(sbi, OMFS_EXTENT_START);
 
 	for (;;) {
 
-		if (omfs_is_bad(sbi, (struct omfs_header *) bh->b_data, next)) {
-			brelse(bh);
-			goto out;
-		}
+		if (omfs_is_bad(sbi, (struct omfs_header *) bh->b_data, next))
+			goto out_brelse;
 
 		extent_count = be32_to_cpu(oe->e_extent_count);
+
+		if (extent_count > max_extents)
+			goto out_brelse;
+
 		last = next;
 		next = be64_to_cpu(oe->e_next);
 		entry = &oe->e_entry;
@@ -98,10 +109,14 @@ int omfs_shrink_inode(struct inode *inode)
 		if (!bh)
 			goto out;
 		oe = (struct omfs_extent *) (&bh->b_data[OMFS_EXTENT_CONT]);
+		max_extents = omfs_max_extents(sbi, OMFS_EXTENT_CONT);
 	}
 	ret = 0;
 out:
 	return ret;
+out_brelse:
+	brelse(bh);
+	return ret;
 }
 
 static void omfs_truncate(struct inode *inode)
@@ -154,9 +169,7 @@ static int omfs_grow_extent(struct inode *inode, struct omfs_extent *oe,
 			goto out;
 		}
 	}
-	max_count = (sbi->s_sys_blocksize - OMFS_EXTENT_START -
-		sizeof(struct omfs_extent)) /
-		sizeof(struct omfs_extent_entry) + 1;
+	max_count = omfs_max_extents(sbi, OMFS_EXTENT_START);
 
 	/* TODO: add a continuation block here */
 	if (be32_to_cpu(oe->e_extent_count) > max_count-1)
@@ -225,6 +238,7 @@ static int omfs_get_block(struct inode *inode, sector_t block,
 	sector_t next, offset;
 	int ret;
 	u64 new_block;
+	u32 max_extents;
 	int extent_count;
 	struct omfs_extent *oe;
 	struct omfs_extent_entry *entry;
@@ -238,6 +252,7 @@ static int omfs_get_block(struct inode *inode, sector_t block,
 		goto out;
 
 	oe = (struct omfs_extent *)(&bh->b_data[OMFS_EXTENT_START]);
+	max_extents = omfs_max_extents(sbi, OMFS_EXTENT_START);
 	next = inode->i_ino;
 
 	for (;;) {
@@ -249,6 +264,9 @@ static int omfs_get_block(struct inode *inode, sector_t block,
 		next = be64_to_cpu(oe->e_next);
 		entry = &oe->e_entry;
 
+		if (extent_count > max_extents)
+			goto out_brelse;
+
 		offset = find_block(inode, entry, block, extent_count, &remain);
 		if (offset > 0) {
 			ret = 0;
@@ -266,6 +284,7 @@ static int omfs_get_block(struct inode *inode, sector_t block,
 		if (!bh)
 			goto out;
 		oe = (struct omfs_extent *) (&bh->b_data[OMFS_EXTENT_CONT]);
+		max_extents = omfs_max_extents(sbi, OMFS_EXTENT_CONT);
 	}
 	if (create) {
 		ret = omfs_grow_extent(inode, oe, &new_block);
diff --git a/fs/omfs/inode.c b/fs/omfs/inode.c
index d865f5535436..d29047b1b9b0 100644
--- a/fs/omfs/inode.c
+++ b/fs/omfs/inode.c
@@ -232,8 +232,7 @@ struct inode *omfs_iget(struct super_block *sb, ino_t ino)
 		inode->i_mode = S_IFDIR | (S_IRWXUGO & ~sbi->s_dmask);
 		inode->i_op = &omfs_dir_inops;
 		inode->i_fop = &omfs_dir_operations;
-		inode->i_size = be32_to_cpu(oi->i_head.h_body_size) +
-			sizeof(struct omfs_header);
+		inode->i_size = sbi->s_sys_blocksize;
 		inc_nlink(inode);
 		break;
 	case OMFS_FILE:
@@ -492,7 +491,8 @@ static int omfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (sbi->s_num_blocks != be64_to_cpu(omfs_rb->r_num_blocks)) {
 		printk(KERN_ERR "omfs: block count discrepancy between "
 			"super and root blocks (%llx, %llx)\n",
-			sbi->s_num_blocks, be64_to_cpu(omfs_rb->r_num_blocks));
+			(unsigned long long)sbi->s_num_blocks,
+			(unsigned long long)be64_to_cpu(omfs_rb->r_num_blocks));
 		goto out_brelse_bh2;
 	}
 
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 01ed610f9b87..a28840b11b89 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -2423,10 +2423,13 @@ static int do_io_accounting(struct task_struct *task, char *buffer, int whole)
 			"read_bytes: %llu\n"
 			"write_bytes: %llu\n"
 			"cancelled_write_bytes: %llu\n",
-			acct.rchar, acct.wchar,
-			acct.syscr, acct.syscw,
-			acct.read_bytes, acct.write_bytes,
-			acct.cancelled_write_bytes);
+			(unsigned long long)acct.rchar,
+			(unsigned long long)acct.wchar,
+			(unsigned long long)acct.syscr,
+			(unsigned long long)acct.syscw,
+			(unsigned long long)acct.read_bytes,
+			(unsigned long long)acct.write_bytes,
+			(unsigned long long)acct.cancelled_write_bytes);
 }
 
 static int proc_tid_io_accounting(struct task_struct *task, char *buffer)
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 4fb81e9c94e3..bca0f81eb687 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -330,6 +330,7 @@ retry:
 		spin_lock(&proc_inum_lock);
 		ida_remove(&proc_inum_ida, i);
 		spin_unlock(&proc_inum_lock);
+		return 0;
 	}
 	return PROC_DYNAMIC_FIRST + i;
 }
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index 79ecd281d2cb..3f87d2632947 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -52,14 +52,14 @@ int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma)
 	}
 
 	seq_printf(m,
-		   "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n",
+		   "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
 		   vma->vm_start,
 		   vma->vm_end,
 		   flags & VM_READ ? 'r' : '-',
 		   flags & VM_WRITE ? 'w' : '-',
 		   flags & VM_EXEC ? 'x' : '-',
 		   flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
-		   vma->vm_pgoff << PAGE_SHIFT,
+		   ((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
 		   MAJOR(dev), MINOR(dev), ino, &len);
 
 	if (file) {
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 7546a918f790..73d1891ee625 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -219,14 +219,14 @@ static int show_map(struct seq_file *m, void *v)
 		ino = inode->i_ino;
 	}
 
-	seq_printf(m, "%08lx-%08lx %c%c%c%c %08lx %02x:%02x %lu %n",
+	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
 			vma->vm_start,
 			vma->vm_end,
 			flags & VM_READ ? 'r' : '-',
 			flags & VM_WRITE ? 'w' : '-',
 			flags & VM_EXEC ? 'x' : '-',
 			flags & VM_MAYSHARE ? 's' : 'p',
-			vma->vm_pgoff << PAGE_SHIFT,
+			((loff_t)vma->vm_pgoff) << PAGE_SHIFT,
 			MAJOR(dev), MINOR(dev), ino, &len);
 
 	/*
diff --git a/fs/readdir.c b/fs/readdir.c
index 4e026e5407fb..93a7559bbfd8 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -80,8 +80,10 @@ static int fillonedir(void * __buf, const char * name, int namlen, loff_t offset
 	if (buf->result)
 		return -EINVAL;
 	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->result = -EOVERFLOW;
 		return -EOVERFLOW;
+	}
 	buf->result++;
 	dirent = buf->dirent;
 	if (!access_ok(VERIFY_WRITE, dirent,
@@ -155,8 +157,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 	if (reclen > buf->count)
 		return -EINVAL;
 	d_ino = ino;
-	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino)
+	if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) {
+		buf->error = -EOVERFLOW;
 		return -EOVERFLOW;
+	}
 	dirent = buf->previous;
 	if (dirent) {
 		if (__put_user(offset, &dirent->d_off))
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 192269698a8a..5699171212ae 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -2435,7 +2435,7 @@ static int reiserfs_write_full_page(struct page *page,
 		if (wbc->sync_mode != WB_SYNC_NONE || !wbc->nonblocking) {
 			lock_buffer(bh);
 		} else {
-			if (test_set_buffer_locked(bh)) {
+			if (!trylock_buffer(bh)) {
 				redirty_page_for_writepage(wbc, page);
 				continue;
 			}
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index c8f60ee183b5..c21df71943a6 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -627,7 +627,7 @@ static int journal_list_still_alive(struct super_block *s,
 static void release_buffer_page(struct buffer_head *bh)
 {
 	struct page *page = bh->b_page;
-	if (!page->mapping && !TestSetPageLocked(page)) {
+	if (!page->mapping && trylock_page(page)) {
 		page_cache_get(page);
 		put_bh(bh);
 		if (!page->mapping)
@@ -855,7 +855,7 @@ static int write_ordered_buffers(spinlock_t * lock,
 		jh = JH_ENTRY(list->next);
 		bh = jh->bh;
 		get_bh(bh);
-		if (test_set_buffer_locked(bh)) {
+		if (!trylock_buffer(bh)) {
 			if (!buffer_dirty(bh)) {
 				list_move(&jh->list, &tmp);
 				goto loop_next;
@@ -3871,7 +3871,7 @@ int reiserfs_prepare_for_journal(struct super_block *p_s_sb,
 {
 	PROC_INFO_INC(p_s_sb, journal.prepare);
 
-	if (test_set_buffer_locked(bh)) {
+	if (!trylock_buffer(bh)) {
 		if (!wait)
 			return 0;
 		lock_buffer(bh);
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 282a13596c70..d318c7e663fa 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -27,7 +27,6 @@
 #include <linux/mnt_namespace.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
-#include <linux/quotaops.h>
 
 struct file_system_type reiserfs_fs_type;
 
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 3f54dbd6c49b..bd20f7f5a933 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -108,9 +108,9 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 			goto Done;
 	}
 	/* we need at least one record in buffer */
+	pos = m->index;
+	p = m->op->start(m, &pos);
 	while (1) {
-		pos = m->index;
-		p = m->op->start(m, &pos);
 		err = PTR_ERR(p);
 		if (!p || IS_ERR(p))
 			break;
@@ -119,6 +119,11 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 			break;
 		if (unlikely(err))
 			m->count = 0;
+		if (unlikely(!m->count)) {
+			p = m->op->next(m, p, &pos);
+			m->index = pos;
+			continue;
+		}
 		if (m->count < m->size)
 			goto Fill;
 		m->op->stop(m, p);
@@ -128,6 +133,8 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 			goto Enomem;
 		m->count = 0;
 		m->version = 0;
+		pos = m->index;
+		p = m->op->start(m, &pos);
 	}
 	m->op->stop(m, p);
 	m->count = 0;
@@ -443,6 +450,20 @@ int seq_dentry(struct seq_file *m, struct dentry *dentry, char *esc)
 	return -1;
 }
 
+int seq_bitmap(struct seq_file *m, unsigned long *bits, unsigned int nr_bits)
+{
+	size_t len = bitmap_scnprintf_len(nr_bits);
+
+	if (m->count + len < m->size) {
+		bitmap_scnprintf(m->buf + m->count, m->size - m->count,
+				 bits, nr_bits);
+		m->count += len;
+		return 0;
+	}
+	m->count = m->size;
+	return -1;
+}
+
 static void *single_start(struct seq_file *p, loff_t *pos)
 {
 	return NULL + (*pos == 0);
diff --git a/fs/splice.c b/fs/splice.c
index b30311ba8af6..1bbc6f4bb09c 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -371,7 +371,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
 			 * for an in-flight io page
 			 */
 			if (flags & SPLICE_F_NONBLOCK) {
-				if (TestSetPageLocked(page)) {
+				if (!trylock_page(page)) {
 					error = -EAGAIN;
 					break;
 				}
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index d81fb9ed2b8e..154098157473 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -263,8 +263,8 @@ int ubifs_calc_min_idx_lebs(struct ubifs_info *c)
 
 	idx_size = c->old_idx_sz + c->budg_idx_growth + c->budg_uncommitted_idx;
 
-	/* And make sure we have twice the index size of space reserved */
-	idx_size <<= 1;
+	/* And make sure we have thrice the index size of space reserved */
+	idx_size = idx_size + (idx_size << 1);
 
 	/*
 	 * We do not maintain 'old_idx_size' as 'old_idx_lebs'/'old_idx_bytes'
@@ -388,11 +388,11 @@ static int can_use_rp(struct ubifs_info *c)
  * This function makes sure UBIFS has enough free eraseblocks for index growth
  * and data.
  *
- * When budgeting index space, UBIFS reserves twice as more LEBs as the index
+ * When budgeting index space, UBIFS reserves thrice as many LEBs as the index
  * would take if it was consolidated and written to the flash. This guarantees
  * that the "in-the-gaps" commit method always succeeds and UBIFS will always
  * be able to commit dirty index. So this function basically adds amount of
- * budgeted index space to the size of the current index, multiplies this by 2,
+ * budgeted index space to the size of the current index, multiplies this by 3,
  * and makes sure this does not exceed the amount of free eraseblocks.
  *
  * Notes about @c->min_idx_lebs and @c->lst.idx_lebs variables:
@@ -543,8 +543,16 @@ int ubifs_budget_space(struct ubifs_info *c, struct ubifs_budget_req *req)
 	int err, idx_growth, data_growth, dd_growth;
 	struct retries_info ri;
 
+	ubifs_assert(req->new_page <= 1);
+	ubifs_assert(req->dirtied_page <= 1);
+	ubifs_assert(req->new_dent <= 1);
+	ubifs_assert(req->mod_dent <= 1);
+	ubifs_assert(req->new_ino <= 1);
+	ubifs_assert(req->new_ino_d <= UBIFS_MAX_INO_DATA);
 	ubifs_assert(req->dirtied_ino <= 4);
 	ubifs_assert(req->dirtied_ino_d <= UBIFS_MAX_INO_DATA * 4);
+	ubifs_assert(!(req->new_ino_d & 7));
+	ubifs_assert(!(req->dirtied_ino_d & 7));
 
 	data_growth = calc_data_growth(c, req);
 	dd_growth = calc_dd_growth(c, req);
@@ -618,8 +626,16 @@ again:
  */
 void ubifs_release_budget(struct ubifs_info *c, struct ubifs_budget_req *req)
 {
+	ubifs_assert(req->new_page <= 1);
+	ubifs_assert(req->dirtied_page <= 1);
+	ubifs_assert(req->new_dent <= 1);
+	ubifs_assert(req->mod_dent <= 1);
+	ubifs_assert(req->new_ino <= 1);
+	ubifs_assert(req->new_ino_d <= UBIFS_MAX_INO_DATA);
 	ubifs_assert(req->dirtied_ino <= 4);
 	ubifs_assert(req->dirtied_ino_d <= UBIFS_MAX_INO_DATA * 4);
+	ubifs_assert(!(req->new_ino_d & 7));
+	ubifs_assert(!(req->dirtied_ino_d & 7));
 	if (!req->recalculate) {
 		ubifs_assert(req->idx_growth >= 0);
 		ubifs_assert(req->data_growth >= 0);
@@ -647,7 +663,11 @@ void ubifs_release_budget(struct ubifs_info *c, struct ubifs_budget_req *req)
 
 	ubifs_assert(c->budg_idx_growth >= 0);
 	ubifs_assert(c->budg_data_growth >= 0);
+	ubifs_assert(c->budg_dd_growth >= 0);
 	ubifs_assert(c->min_idx_lebs < c->main_lebs);
+	ubifs_assert(!(c->budg_idx_growth & 7));
+	ubifs_assert(!(c->budg_data_growth & 7));
+	ubifs_assert(!(c->budg_dd_growth & 7));
 	spin_unlock(&c->space_lock);
 }
 
@@ -686,9 +706,10 @@ void ubifs_convert_page_budget(struct ubifs_info *c)
 void ubifs_release_dirty_inode_budget(struct ubifs_info *c,
 				      struct ubifs_inode *ui)
 {
-	struct ubifs_budget_req req = {.dd_growth = c->inode_budget,
-				       .dirtied_ino_d = ui->data_len};
+	struct ubifs_budget_req req;
 
+	memset(&req, 0, sizeof(struct ubifs_budget_req));
+	req.dd_growth = c->inode_budget + ALIGN(ui->data_len, 8);
 	ubifs_release_budget(c, &req);
 }
 
diff --git a/fs/ubifs/commit.c b/fs/ubifs/commit.c
index 3b516316c9b3..0a6aa2cc78f0 100644
--- a/fs/ubifs/commit.c
+++ b/fs/ubifs/commit.c
@@ -74,6 +74,7 @@ static int do_commit(struct ubifs_info *c)
 			goto out_up;
 	}
 
+	c->cmt_no += 1;
 	err = ubifs_gc_start_commit(c);
 	if (err)
 		goto out_up;
@@ -115,7 +116,7 @@ static int do_commit(struct ubifs_info *c)
 		goto out;
 
 	mutex_lock(&c->mst_mutex);
-	c->mst_node->cmt_no      = cpu_to_le64(++c->cmt_no);
+	c->mst_node->cmt_no      = cpu_to_le64(c->cmt_no);
 	c->mst_node->log_lnum    = cpu_to_le32(new_ltail_lnum);
 	c->mst_node->root_lnum   = cpu_to_le32(zroot.lnum);
 	c->mst_node->root_offs   = cpu_to_le32(zroot.offs);
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 4e3aaeba4eca..b9cb77473758 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -568,8 +568,8 @@ void dbg_dump_budget_req(const struct ubifs_budget_req *req)
 void dbg_dump_lstats(const struct ubifs_lp_stats *lst)
 {
 	spin_lock(&dbg_lock);
-	printk(KERN_DEBUG "Lprops statistics: empty_lebs %d, idx_lebs  %d\n",
-	       lst->empty_lebs, lst->idx_lebs);
+	printk(KERN_DEBUG "(pid %d) Lprops statistics: empty_lebs %d, "
+	       "idx_lebs  %d\n", current->pid, lst->empty_lebs, lst->idx_lebs);
 	printk(KERN_DEBUG "\ttaken_empty_lebs %d, total_free %lld, "
 	       "total_dirty %lld\n", lst->taken_empty_lebs, lst->total_free,
 	       lst->total_dirty);
@@ -587,8 +587,8 @@ void dbg_dump_budg(struct ubifs_info *c)
 	struct ubifs_gced_idx_leb *idx_gc;
 
 	spin_lock(&dbg_lock);
-	printk(KERN_DEBUG "Budgeting info: budg_data_growth %lld, "
-	       "budg_dd_growth %lld, budg_idx_growth %lld\n",
+	printk(KERN_DEBUG "(pid %d) Budgeting info: budg_data_growth %lld, "
+	       "budg_dd_growth %lld, budg_idx_growth %lld\n", current->pid,
 	       c->budg_data_growth, c->budg_dd_growth, c->budg_idx_growth);
 	printk(KERN_DEBUG "\tdata budget sum %lld, total budget sum %lld, "
 	       "freeable_cnt %d\n", c->budg_data_growth + c->budg_dd_growth,
@@ -634,7 +634,7 @@ void dbg_dump_lprops(struct ubifs_info *c)
 	struct ubifs_lprops lp;
 	struct ubifs_lp_stats lst;
 
-	printk(KERN_DEBUG "Dumping LEB properties\n");
+	printk(KERN_DEBUG "(pid %d) Dumping LEB properties\n", current->pid);
 	ubifs_get_lp_stats(c, &lst);
 	dbg_dump_lstats(&lst);
 
@@ -655,7 +655,7 @@ void dbg_dump_leb(const struct ubifs_info *c, int lnum)
 	if (dbg_failure_mode)
 		return;
 
-	printk(KERN_DEBUG "Dumping LEB %d\n", lnum);
+	printk(KERN_DEBUG "(pid %d) Dumping LEB %d\n", current->pid, lnum);
 
 	sleb = ubifs_scan(c, lnum, 0, c->dbg_buf);
 	if (IS_ERR(sleb)) {
@@ -720,8 +720,8 @@ void dbg_dump_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat)
 {
 	int i;
 
-	printk(KERN_DEBUG "Dumping heap cat %d (%d elements)\n",
-	       cat, heap->cnt);
+	printk(KERN_DEBUG "(pid %d) Dumping heap cat %d (%d elements)\n",
+	       current->pid, cat, heap->cnt);
 	for (i = 0; i < heap->cnt; i++) {
 		struct ubifs_lprops *lprops = heap->arr[i];
 
@@ -736,7 +736,7 @@ void dbg_dump_pnode(struct ubifs_info *c, struct ubifs_pnode *pnode,
 {
 	int i;
 
-	printk(KERN_DEBUG "Dumping pnode:\n");
+	printk(KERN_DEBUG "(pid %d) Dumping pnode:\n", current->pid);
 	printk(KERN_DEBUG "\taddress %zx parent %zx cnext %zx\n",
 	       (size_t)pnode, (size_t)parent, (size_t)pnode->cnext);
 	printk(KERN_DEBUG "\tflags %lu iip %d level %d num %d\n",
@@ -755,7 +755,7 @@ void dbg_dump_tnc(struct ubifs_info *c)
 	int level;
 
 	printk(KERN_DEBUG "\n");
-	printk(KERN_DEBUG "Dumping the TNC tree\n");
+	printk(KERN_DEBUG "(pid %d) Dumping the TNC tree\n", current->pid);
 	znode = ubifs_tnc_levelorder_next(c->zroot.znode, NULL);
 	level = znode->level;
 	printk(KERN_DEBUG "== Level %d ==\n", level);
@@ -2208,16 +2208,17 @@ int dbg_leb_read(struct ubi_volume_desc *desc, int lnum, char *buf, int offset,
 int dbg_leb_write(struct ubi_volume_desc *desc, int lnum, const void *buf,
 		  int offset, int len, int dtype)
 {
-	int err;
+	int err, failing;
 
 	if (in_failure_mode(desc))
 		return -EIO;
-	if (do_fail(desc, lnum, 1))
+	failing = do_fail(desc, lnum, 1);
+	if (failing)
 		cut_data(buf, len);
 	err = ubi_leb_write(desc, lnum, buf, offset, len, dtype);
 	if (err)
 		return err;
-	if (in_failure_mode(desc))
+	if (failing)
 		return -EIO;
 	return 0;
 }
diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index 3c4f1e93c9e0..50315fc57185 100644
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -27,7 +27,7 @@
 
 #define UBIFS_DBG(op) op
 
-#define ubifs_assert(expr)  do {                                               \
+#define ubifs_assert(expr) do {                                                \
 	if (unlikely(!(expr))) {                                               \
 		printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
 		       __func__, __LINE__, current->pid);                      \
@@ -73,50 +73,50 @@ const char *dbg_key_str1(const struct ubifs_info *c,
 			 const union ubifs_key *key);
 
 /*
- * DBGKEY macros require dbg_lock to be held, which it is in the dbg message
+ * DBGKEY macros require @dbg_lock to be held, which it is in the dbg message
  * macros.
  */
 #define DBGKEY(key) dbg_key_str0(c, (key))
 #define DBGKEY1(key) dbg_key_str1(c, (key))
 
 /* General messages */
-#define dbg_gen(fmt, ...)        dbg_do_msg(UBIFS_MSG_GEN, fmt, ##__VA_ARGS__)
+#define dbg_gen(fmt, ...)   dbg_do_msg(UBIFS_MSG_GEN, fmt, ##__VA_ARGS__)
 
 /* Additional journal messages */
-#define dbg_jnl(fmt, ...)        dbg_do_msg(UBIFS_MSG_JNL, fmt, ##__VA_ARGS__)
+#define dbg_jnl(fmt, ...)   dbg_do_msg(UBIFS_MSG_JNL, fmt, ##__VA_ARGS__)
 
 /* Additional TNC messages */
-#define dbg_tnc(fmt, ...)        dbg_do_msg(UBIFS_MSG_TNC, fmt, ##__VA_ARGS__)
+#define dbg_tnc(fmt, ...)   dbg_do_msg(UBIFS_MSG_TNC, fmt, ##__VA_ARGS__)
 
 /* Additional lprops messages */
-#define dbg_lp(fmt, ...)         dbg_do_msg(UBIFS_MSG_LP, fmt, ##__VA_ARGS__)
+#define dbg_lp(fmt, ...)    dbg_do_msg(UBIFS_MSG_LP, fmt, ##__VA_ARGS__)
 
 /* Additional LEB find messages */
-#define dbg_find(fmt, ...)       dbg_do_msg(UBIFS_MSG_FIND, fmt, ##__VA_ARGS__)
+#define dbg_find(fmt, ...)  dbg_do_msg(UBIFS_MSG_FIND, fmt, ##__VA_ARGS__)
 
 /* Additional mount messages */
-#define dbg_mnt(fmt, ...)        dbg_do_msg(UBIFS_MSG_MNT, fmt, ##__VA_ARGS__)
+#define dbg_mnt(fmt, ...)   dbg_do_msg(UBIFS_MSG_MNT, fmt, ##__VA_ARGS__)
 
 /* Additional I/O messages */
-#define dbg_io(fmt, ...)         dbg_do_msg(UBIFS_MSG_IO, fmt, ##__VA_ARGS__)
+#define dbg_io(fmt, ...)    dbg_do_msg(UBIFS_MSG_IO, fmt, ##__VA_ARGS__)
 
 /* Additional commit messages */
-#define dbg_cmt(fmt, ...)        dbg_do_msg(UBIFS_MSG_CMT, fmt, ##__VA_ARGS__)
+#define dbg_cmt(fmt, ...)   dbg_do_msg(UBIFS_MSG_CMT, fmt, ##__VA_ARGS__)
 
 /* Additional budgeting messages */
-#define dbg_budg(fmt, ...)       dbg_do_msg(UBIFS_MSG_BUDG, fmt, ##__VA_ARGS__)
+#define dbg_budg(fmt, ...)  dbg_do_msg(UBIFS_MSG_BUDG, fmt, ##__VA_ARGS__)
 
 /* Additional log messages */
-#define dbg_log(fmt, ...)        dbg_do_msg(UBIFS_MSG_LOG, fmt, ##__VA_ARGS__)
+#define dbg_log(fmt, ...)   dbg_do_msg(UBIFS_MSG_LOG, fmt, ##__VA_ARGS__)
 
 /* Additional gc messages */
-#define dbg_gc(fmt, ...)         dbg_do_msg(UBIFS_MSG_GC, fmt, ##__VA_ARGS__)
+#define dbg_gc(fmt, ...)    dbg_do_msg(UBIFS_MSG_GC, fmt, ##__VA_ARGS__)
 
 /* Additional scan messages */
-#define dbg_scan(fmt, ...)       dbg_do_msg(UBIFS_MSG_SCAN, fmt, ##__VA_ARGS__)
+#define dbg_scan(fmt, ...)  dbg_do_msg(UBIFS_MSG_SCAN, fmt, ##__VA_ARGS__)
 
 /* Additional recovery messages */
-#define dbg_rcvry(fmt, ...)      dbg_do_msg(UBIFS_MSG_RCVRY, fmt, ##__VA_ARGS__)
+#define dbg_rcvry(fmt, ...) dbg_do_msg(UBIFS_MSG_RCVRY, fmt, ##__VA_ARGS__)
 
 /*
  * Debugging message type flags (must match msg_type_names in debug.c).
@@ -239,34 +239,23 @@ typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
 				 struct ubifs_zbranch *zbr, void *priv);
 typedef int (*dbg_znode_callback)(struct ubifs_info *c,
 				  struct ubifs_znode *znode, void *priv);
-
 int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb,
 		   dbg_znode_callback znode_cb, void *priv);
 
 /* Checking functions */
 
 int dbg_check_lprops(struct ubifs_info *c);
-
 int dbg_old_index_check_init(struct ubifs_info *c, struct ubifs_zbranch *zroot);
 int dbg_check_old_index(struct ubifs_info *c, struct ubifs_zbranch *zroot);
-
 int dbg_check_cats(struct ubifs_info *c);
-
 int dbg_check_ltab(struct ubifs_info *c);
-
 int dbg_check_synced_i_size(struct inode *inode);
-
 int dbg_check_dir_size(struct ubifs_info *c, const struct inode *dir);
-
 int dbg_check_tnc(struct ubifs_info *c, int extra);
-
 int dbg_check_idx_size(struct ubifs_info *c, long long idx_size);
-
 int dbg_check_filesystem(struct ubifs_info *c);
-
 void dbg_check_heap(struct ubifs_info *c, struct ubifs_lpt_heap *heap, int cat,
 		    int add_pos);
-
 int dbg_check_lprops(struct ubifs_info *c);
 int dbg_check_lpt_nodes(struct ubifs_info *c, struct ubifs_cnode *cnode,
 			int row, int col);
@@ -329,71 +318,77 @@ static inline int dbg_change(struct ubi_volume_desc *desc, int lnum,
 #else /* !CONFIG_UBIFS_FS_DEBUG */
 
 #define UBIFS_DBG(op)
-#define ubifs_assert(expr)                         ({})
-#define ubifs_assert_cmt_locked(c)
+
+/* Use "if (0)" to make compiler check arguments even if debugging is off */
+#define ubifs_assert(expr)  do {                                               \
+	if (0 && (expr))                                                       \
+		printk(KERN_CRIT "UBIFS assert failed in %s at %u (pid %d)\n", \
+		       __func__, __LINE__, current->pid);                      \
+} while (0)
+
+#define dbg_err(fmt, ...)   do {                                               \
+	if (0)                                                                 \
+		ubifs_err(fmt, ##__VA_ARGS__);                                 \
+} while (0)
+
+#define dbg_msg(fmt, ...) do {                                                 \
+	if (0)                                                                 \
+		printk(KERN_DEBUG "UBIFS DBG (pid %d): %s: " fmt "\n",         \
+		       current->pid, __func__, ##__VA_ARGS__);                 \
+} while (0)
+
 #define dbg_dump_stack()
-#define dbg_err(fmt, ...)                          ({})
-#define dbg_msg(fmt, ...)                          ({})
-#define dbg_key(c, key, fmt, ...)                  ({})
-
-#define dbg_gen(fmt, ...)                          ({})
-#define dbg_jnl(fmt, ...)                          ({})
-#define dbg_tnc(fmt, ...)                          ({})
-#define dbg_lp(fmt, ...)                           ({})
-#define dbg_find(fmt, ...)                         ({})
-#define dbg_mnt(fmt, ...)                          ({})
-#define dbg_io(fmt, ...)                           ({})
-#define dbg_cmt(fmt, ...)                          ({})
-#define dbg_budg(fmt, ...)                         ({})
-#define dbg_log(fmt, ...)                          ({})
-#define dbg_gc(fmt, ...)                           ({})
-#define dbg_scan(fmt, ...)                         ({})
-#define dbg_rcvry(fmt, ...)                        ({})
-
-#define dbg_ntype(type)                            ""
-#define dbg_cstate(cmt_state)                      ""
-#define dbg_get_key_dump(c, key)                   ({})
-#define dbg_dump_inode(c, inode)                   ({})
-#define dbg_dump_node(c, node)                     ({})
-#define dbg_dump_budget_req(req)                   ({})
-#define dbg_dump_lstats(lst)                       ({})
-#define dbg_dump_budg(c)                           ({})
-#define dbg_dump_lprop(c, lp)                      ({})
-#define dbg_dump_lprops(c)                         ({})
-#define dbg_dump_leb(c, lnum)                      ({})
-#define dbg_dump_znode(c, znode)                   ({})
-#define dbg_dump_heap(c, heap, cat)                ({})
-#define dbg_dump_pnode(c, pnode, parent, iip)      ({})
-#define dbg_dump_tnc(c)                            ({})
-#define dbg_dump_index(c)                          ({})
+#define ubifs_assert_cmt_locked(c)
 
-#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
+#define dbg_gen(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_jnl(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_tnc(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_lp(fmt, ...)    dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_find(fmt, ...)  dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_mnt(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_io(fmt, ...)    dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_cmt(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_budg(fmt, ...)  dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_log(fmt, ...)   dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_gc(fmt, ...)    dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_scan(fmt, ...)  dbg_msg(fmt, ##__VA_ARGS__)
+#define dbg_rcvry(fmt, ...) dbg_msg(fmt, ##__VA_ARGS__)
+
+#define DBGKEY(key)  ((char *)(key))
+#define DBGKEY1(key) ((char *)(key))
+
+#define dbg_ntype(type)                       ""
+#define dbg_cstate(cmt_state)                 ""
+#define dbg_get_key_dump(c, key)              ({})
+#define dbg_dump_inode(c, inode)              ({})
+#define dbg_dump_node(c, node)                ({})
+#define dbg_dump_budget_req(req)              ({})
+#define dbg_dump_lstats(lst)                  ({})
+#define dbg_dump_budg(c)                      ({})
+#define dbg_dump_lprop(c, lp)                 ({})
+#define dbg_dump_lprops(c)                    ({})
+#define dbg_dump_leb(c, lnum)                 ({})
+#define dbg_dump_znode(c, znode)              ({})
+#define dbg_dump_heap(c, heap, cat)           ({})
+#define dbg_dump_pnode(c, pnode, parent, iip) ({})
+#define dbg_dump_tnc(c)                       ({})
+#define dbg_dump_index(c)                     ({})
 
+#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
 #define dbg_old_index_check_init(c, zroot)         0
 #define dbg_check_old_index(c, zroot)              0
-
 #define dbg_check_cats(c)                          0
-
 #define dbg_check_ltab(c)                          0
-
 #define dbg_check_synced_i_size(inode)             0
-
 #define dbg_check_dir_size(c, dir)                 0
-
 #define dbg_check_tnc(c, x)                        0
-
 #define dbg_check_idx_size(c, idx_size)            0
-
 #define dbg_check_filesystem(c)                    0
-
 #define dbg_check_heap(c, heap, cat, add_pos)      ({})
-
 #define dbg_check_lprops(c)                        0
 #define dbg_check_lpt_nodes(c, cnode, row, col)    0
-
 #define dbg_force_in_the_gaps_enabled              0
 #define dbg_force_in_the_gaps()                    0
-
 #define dbg_failure_mode                           0
 #define dbg_failure_mode_registration(c)           ({})
 #define dbg_failure_mode_deregistration(c)         ({})
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index e90374be7d3b..5c96f1fb7016 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -165,7 +165,6 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
 	}
 
 	inode->i_ino = ++c->highest_inum;
-	inode->i_generation = ++c->vfs_gen;
 	/*
 	 * The creation sequence number remains with this inode for its
 	 * lifetime. All nodes for this inode have a greater sequence number,
@@ -220,15 +219,7 @@ static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
 
 	err = ubifs_tnc_lookup_nm(c, &key, dent, &dentry->d_name);
 	if (err) {
-		/*
-		 * Do not hash the direntry if parent 'i_nlink' is zero, because
-		 * this has side-effects - '->delete_inode()' call will not be
-		 * called for the parent orphan inode, because 'd_count' of its
-		 * direntry will stay 1 (it'll be negative direntry I guess)
-		 * and prevent 'iput_final()' until the dentry is destroyed due
-		 * to unmount or memory pressure.
-		 */
-		if (err == -ENOENT && dir->i_nlink != 0) {
+		if (err == -ENOENT) {
 			dbg_gen("not found");
 			goto done;
 		}
@@ -525,7 +516,7 @@ static int ubifs_link(struct dentry *old_dentry, struct inode *dir,
 	struct ubifs_inode *dir_ui = ubifs_inode(dir);
 	int err, sz_change = CALC_DENT_SIZE(dentry->d_name.len);
 	struct ubifs_budget_req req = { .new_dent = 1, .dirtied_ino = 2,
-					.dirtied_ino_d = ui->data_len };
+				.dirtied_ino_d = ALIGN(ui->data_len, 8) };
 
 	/*
 	 * Budget request settings: new direntry, changing the target inode,
@@ -727,8 +718,7 @@ static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
 	struct ubifs_inode *dir_ui = ubifs_inode(dir);
 	struct ubifs_info *c = dir->i_sb->s_fs_info;
 	int err, sz_change = CALC_DENT_SIZE(dentry->d_name.len);
-	struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
-					.dirtied_ino_d = 1 };
+	struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1 };
 
 	/*
 	 * Budget request settings: new inode, new direntry and changing parent
@@ -789,7 +779,8 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
 	int sz_change = CALC_DENT_SIZE(dentry->d_name.len);
 	int err, devlen = 0;
 	struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
-					.new_ino_d = devlen, .dirtied_ino = 1 };
+					.new_ino_d = ALIGN(devlen, 8),
+					.dirtied_ino = 1 };
 
 	/*
 	 * Budget request settings: new inode, new direntry and changing parent
@@ -863,7 +854,8 @@ static int ubifs_symlink(struct inode *dir, struct dentry *dentry,
 	int err, len = strlen(symname);
 	int sz_change = CALC_DENT_SIZE(dentry->d_name.len);
 	struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
-					.new_ino_d = len, .dirtied_ino = 1 };
+					.new_ino_d = ALIGN(len, 8),
+					.dirtied_ino = 1 };
 
 	/*
 	 * Budget request settings: new inode, new direntry and changing parent
@@ -1012,7 +1004,7 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct ubifs_budget_req req = { .new_dent = 1, .mod_dent = 1,
 					.dirtied_ino = 3 };
 	struct ubifs_budget_req ino_req = { .dirtied_ino = 1,
-				.dirtied_ino_d = old_inode_ui->data_len };
+			.dirtied_ino_d = ALIGN(old_inode_ui->data_len, 8) };
 	struct timespec time;
 
 	/*
diff --git a/fs/ubifs/file.c b/fs/ubifs/file.c
index 8565e586e533..4071d1cae29f 100644
--- a/fs/ubifs/file.c
+++ b/fs/ubifs/file.c
@@ -890,7 +890,7 @@ static int do_setattr(struct ubifs_info *c, struct inode *inode,
 	loff_t new_size = attr->ia_size;
 	struct ubifs_inode *ui = ubifs_inode(inode);
 	struct ubifs_budget_req req = { .dirtied_ino = 1,
-					.dirtied_ino_d = ui->data_len };
+				.dirtied_ino_d = ALIGN(ui->data_len, 8) };
 
 	err = ubifs_budget_space(c, &req);
 	if (err)
@@ -941,7 +941,8 @@ int ubifs_setattr(struct dentry *dentry, struct iattr *attr)
 	struct inode *inode = dentry->d_inode;
 	struct ubifs_info *c = inode->i_sb->s_fs_info;
 
-	dbg_gen("ino %lu, ia_valid %#x", inode->i_ino, attr->ia_valid);
+	dbg_gen("ino %lu, mode %#x, ia_valid %#x",
+		inode->i_ino, inode->i_mode, attr->ia_valid);
 	err = inode_change_ok(inode, attr);
 	if (err)
 		return err;
@@ -1051,7 +1052,7 @@ static int update_mctime(struct ubifs_info *c, struct inode *inode)
 	if (mctime_update_needed(inode, &now)) {
 		int err, release;
 		struct ubifs_budget_req req = { .dirtied_ino = 1,
-						.dirtied_ino_d = ui->data_len };
+				.dirtied_ino_d = ALIGN(ui->data_len, 8) };
 
 		err = ubifs_budget_space(c, &req);
 		if (err)
@@ -1270,6 +1271,7 @@ struct file_operations ubifs_file_operations = {
 	.fsync          = ubifs_fsync,
 	.unlocked_ioctl = ubifs_ioctl,
 	.splice_read	= generic_file_splice_read,
+	.splice_write	= generic_file_splice_write,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = ubifs_compat_ioctl,
 #endif
diff --git a/fs/ubifs/find.c b/fs/ubifs/find.c
index 10394c548367..adee7b5ddeab 100644
--- a/fs/ubifs/find.c
+++ b/fs/ubifs/find.c
@@ -290,9 +290,14 @@ int ubifs_find_dirty_leb(struct ubifs_info *c, struct ubifs_lprops *ret_lp,
 		idx_lp = idx_heap->arr[0];
 		sum = idx_lp->free + idx_lp->dirty;
 		/*
-		 * Since we reserve twice as more space for the index than it
+		 * Since we reserve thrice as much space for the index than it
 		 * actually takes, it does not make sense to pick indexing LEBs
-		 * with less than half LEB of dirty space.
+		 * with less than, say, half LEB of dirty space. May be half is
+		 * not the optimal boundary - this should be tested and
+		 * checked. This boundary should determine how much we use
+		 * in-the-gaps to consolidate the index comparing to how much
+		 * we use garbage collector to consolidate it. The "half"
+		 * criteria just feels to be fine.
 		 */
 		if (sum < min_space || sum < c->half_leb_size)
 			idx_lp = NULL;
diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
index 3374f91b6709..054363f2b207 100644
--- a/fs/ubifs/io.c
+++ b/fs/ubifs/io.c
@@ -54,6 +54,20 @@
 #include "ubifs.h"
 
 /**
+ * ubifs_ro_mode - switch UBIFS to read read-only mode.
+ * @c: UBIFS file-system description object
+ * @err: error code which is the reason of switching to R/O mode
+ */
+void ubifs_ro_mode(struct ubifs_info *c, int err)
+{
+	if (!c->ro_media) {
+		c->ro_media = 1;
+		ubifs_warn("switched to read-only mode, error %d", err);
+		dbg_dump_stack();
+	}
+}
+
+/**
  * ubifs_check_node - check node.
  * @c: UBIFS file-system description object
  * @buf: node to check
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index 283155abe5f5..22993f867d19 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -447,13 +447,11 @@ static int get_dent_type(int mode)
  * @ino: buffer in which to pack inode node
  * @inode: inode to pack
  * @last: indicates the last node of the group
- * @last_reference: non-zero if this is a deletion inode
  */
 static void pack_inode(struct ubifs_info *c, struct ubifs_ino_node *ino,
-		       const struct inode *inode, int last,
-		       int last_reference)
+		       const struct inode *inode, int last)
 {
-	int data_len = 0;
+	int data_len = 0, last_reference = !inode->i_nlink;
 	struct ubifs_inode *ui = ubifs_inode(inode);
 
 	ino->ch.node_type = UBIFS_INO_NODE;
@@ -596,9 +594,9 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 	ubifs_prep_grp_node(c, dent, dlen, 0);
 
 	ino = (void *)dent + aligned_dlen;
-	pack_inode(c, ino, inode, 0, last_reference);
+	pack_inode(c, ino, inode, 0);
 	ino = (void *)ino + aligned_ilen;
-	pack_inode(c, ino, dir, 1, 0);
+	pack_inode(c, ino, dir, 1);
 
 	if (last_reference) {
 		err = ubifs_add_orphan(c, inode->i_ino);
@@ -606,6 +604,7 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 			release_head(c, BASEHD);
 			goto out_finish;
 		}
+		ui->del_cmtno = c->cmt_no;
 	}
 
 	err = write_head(c, BASEHD, dent, len, &lnum, &dent_offs, sync);
@@ -750,30 +749,25 @@ out_free:
  * ubifs_jnl_write_inode - flush inode to the journal.
  * @c: UBIFS file-system description object
  * @inode: inode to flush
- * @deletion: inode has been deleted
  *
  * This function writes inode @inode to the journal. If the inode is
  * synchronous, it also synchronizes the write-buffer. Returns zero in case of
  * success and a negative error code in case of failure.
  */
-int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode,
-			  int deletion)
+int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode)
 {
-	int err, len, lnum, offs, sync = 0;
+	int err, lnum, offs;
 	struct ubifs_ino_node *ino;
 	struct ubifs_inode *ui = ubifs_inode(inode);
+	int sync = 0, len = UBIFS_INO_NODE_SZ, last_reference = !inode->i_nlink;
 
-	dbg_jnl("ino %lu%s", inode->i_ino,
-		deletion ? " (last reference)" : "");
-	if (deletion)
-		ubifs_assert(inode->i_nlink == 0);
+	dbg_jnl("ino %lu, nlink %u", inode->i_ino, inode->i_nlink);
 
-	len = UBIFS_INO_NODE_SZ;
 	/*
 	 * If the inode is being deleted, do not write the attached data. No
 	 * need to synchronize the write-buffer either.
 	 */
-	if (!deletion) {
+	if (!last_reference) {
 		len += ui->data_len;
 		sync = IS_SYNC(inode);
 	}
@@ -786,7 +780,7 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode,
 	if (err)
 		goto out_free;
 
-	pack_inode(c, ino, inode, 1, deletion);
+	pack_inode(c, ino, inode, 1);
 	err = write_head(c, BASEHD, ino, len, &lnum, &offs, sync);
 	if (err)
 		goto out_release;
@@ -795,7 +789,7 @@ int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode,
 					  inode->i_ino);
 	release_head(c, BASEHD);
 
-	if (deletion) {
+	if (last_reference) {
 		err = ubifs_tnc_remove_ino(c, inode->i_ino);
 		if (err)
 			goto out_ro;
@@ -828,6 +822,65 @@ out_free:
 }
 
 /**
+ * ubifs_jnl_delete_inode - delete an inode.
+ * @c: UBIFS file-system description object
+ * @inode: inode to delete
+ *
+ * This function deletes inode @inode which includes removing it from orphans,
+ * deleting it from TNC and, in some cases, writing a deletion inode to the
+ * journal.
+ *
+ * When regular file inodes are unlinked or a directory inode is removed, the
+ * 'ubifs_jnl_update()' function writes a corresponding deletion inode and
+ * direntry to the media, and adds the inode to orphans. After this, when the
+ * last reference to this inode has been dropped, this function is called. In
+ * general, it has to write one more deletion inode to the media, because if
+ * a commit happened between 'ubifs_jnl_update()' and
+ * 'ubifs_jnl_delete_inode()', the deletion inode is not in the journal
+ * anymore, and in fact it might not be on the flash anymore, because it might
+ * have been garbage-collected already. And for optimization reasons UBIFS does
+ * not read the orphan area if it has been unmounted cleanly, so it would have
+ * no indication in the journal that there is a deleted inode which has to be
+ * removed from TNC.
+ *
+ * However, if there was no commit between 'ubifs_jnl_update()' and
+ * 'ubifs_jnl_delete_inode()', then there is no need to write the deletion
+ * inode to the media for the second time. And this is quite a typical case.
+ *
+ * This function returns zero in case of success and a negative error code in
+ * case of failure.
+ */
+int ubifs_jnl_delete_inode(struct ubifs_info *c, const struct inode *inode)
+{
+	int err;
+	struct ubifs_inode *ui = ubifs_inode(inode);
+
+	ubifs_assert(inode->i_nlink == 0);
+
+	if (ui->del_cmtno != c->cmt_no)
+		/* A commit happened for sure */
+		return ubifs_jnl_write_inode(c, inode);
+
+	down_read(&c->commit_sem);
+	/*
+	 * Check commit number again, because the first test has been done
+	 * without @c->commit_sem, so a commit might have happened.
+	 */
+	if (ui->del_cmtno != c->cmt_no) {
+		up_read(&c->commit_sem);
+		return ubifs_jnl_write_inode(c, inode);
+	}
+
+	err = ubifs_tnc_remove_ino(c, inode->i_ino);
+	if (err)
+		ubifs_ro_mode(c, err);
+	else
+		ubifs_delete_orphan(c, inode->i_ino);
+	up_read(&c->commit_sem);
+	return err;
+}
+
+/**
  * ubifs_jnl_rename - rename a directory entry.
  * @c: UBIFS file-system description object
  * @old_dir: parent inode of directory entry to rename
@@ -917,16 +970,16 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir,
 
 	p = (void *)dent2 + aligned_dlen2;
 	if (new_inode) {
-		pack_inode(c, p, new_inode, 0, last_reference);
+		pack_inode(c, p, new_inode, 0);
 		p += ALIGN(ilen, 8);
 	}
 
 	if (!move)
-		pack_inode(c, p, old_dir, 1, 0);
+		pack_inode(c, p, old_dir, 1);
 	else {
-		pack_inode(c, p, old_dir, 0, 0);
+		pack_inode(c, p, old_dir, 0);
 		p += ALIGN(plen, 8);
-		pack_inode(c, p, new_dir, 1, 0);
+		pack_inode(c, p, new_dir, 1);
 	}
 
 	if (last_reference) {
@@ -935,6 +988,7 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir,
 			release_head(c, BASEHD);
 			goto out_finish;
 		}
+		new_ui->del_cmtno = c->cmt_no;
 	}
 
 	err = write_head(c, BASEHD, dent, len, &lnum, &offs, sync);
@@ -1131,7 +1185,7 @@ int ubifs_jnl_truncate(struct ubifs_info *c, const struct inode *inode,
 	if (err)
 		goto out_free;
 
-	pack_inode(c, ino, inode, 0, 0);
+	pack_inode(c, ino, inode, 0);
 	ubifs_prep_grp_node(c, trun, UBIFS_TRUN_NODE_SZ, dlen ? 0 : 1);
 	if (dlen)
 		ubifs_prep_grp_node(c, dn, dlen, 1);
@@ -1251,9 +1305,9 @@ int ubifs_jnl_delete_xattr(struct ubifs_info *c, const struct inode *host,
 	ubifs_prep_grp_node(c, xent, xlen, 0);
 
 	ino = (void *)xent + aligned_xlen;
-	pack_inode(c, ino, inode, 0, 1);
+	pack_inode(c, ino, inode, 0);
 	ino = (void *)ino + UBIFS_INO_NODE_SZ;
-	pack_inode(c, ino, host, 1, 0);
+	pack_inode(c, ino, host, 1);
 
 	err = write_head(c, BASEHD, xent, len, &lnum, &xent_offs, sync);
 	if (!sync && !err)
@@ -1320,7 +1374,7 @@ int ubifs_jnl_change_xattr(struct ubifs_info *c, const struct inode *inode,
 			   const struct inode *host)
 {
 	int err, len1, len2, aligned_len, aligned_len1, lnum, offs;
-	struct ubifs_inode *host_ui = ubifs_inode(inode);
+	struct ubifs_inode *host_ui = ubifs_inode(host);
 	struct ubifs_ino_node *ino;
 	union ubifs_key key;
 	int sync = IS_DIRSYNC(host);
@@ -1344,8 +1398,8 @@ int ubifs_jnl_change_xattr(struct ubifs_info *c, const struct inode *inode,
 	if (err)
 		goto out_free;
 
-	pack_inode(c, ino, host, 0, 0);
-	pack_inode(c, (void *)ino + aligned_len1, inode, 1, 0);
+	pack_inode(c, ino, host, 0);
+	pack_inode(c, (void *)ino + aligned_len1, inode, 1);
 
 	err = write_head(c, BASEHD, ino, aligned_len, &lnum, &offs, 0);
 	if (!sync && !err) {
diff --git a/fs/ubifs/log.c b/fs/ubifs/log.c
index 36857b9ed59e..3e0aa7367556 100644
--- a/fs/ubifs/log.c
+++ b/fs/ubifs/log.c
@@ -317,6 +317,8 @@ int ubifs_add_bud_to_log(struct ubifs_info *c, int jhead, int lnum, int offs)
 	return 0;
 
 out_unlock:
+	if (err != -EAGAIN)
+		ubifs_ro_mode(c, err);
 	mutex_unlock(&c->log_mutex);
 	kfree(ref);
 	kfree(bud);
@@ -410,7 +412,7 @@ int ubifs_log_start_commit(struct ubifs_info *c, int *ltail_lnum)
 		return -ENOMEM;
 
 	cs->ch.node_type = UBIFS_CS_NODE;
-	cs->cmt_no = cpu_to_le64(c->cmt_no + 1);
+	cs->cmt_no = cpu_to_le64(c->cmt_no);
 	ubifs_prepare_node(c, cs, UBIFS_CS_NODE_SZ, 0);
 
 	/*
diff --git a/fs/ubifs/misc.h b/fs/ubifs/misc.h
index 4beccfc256d2..87dabf9fe742 100644
--- a/fs/ubifs/misc.h
+++ b/fs/ubifs/misc.h
@@ -80,20 +80,6 @@ static inline struct ubifs_inode *ubifs_inode(const struct inode *inode)
 }
 
 /**
- * ubifs_ro_mode - switch UBIFS to read read-only mode.
- * @c: UBIFS file-system description object
- * @err: error code which is the reason of switching to R/O mode
- */
-static inline void ubifs_ro_mode(struct ubifs_info *c, int err)
-{
-	if (!c->ro_media) {
-		c->ro_media = 1;
-		ubifs_warn("switched to read-only mode, error %d", err);
-		dbg_dump_stack();
-	}
-}
-
-/**
  * ubifs_compr_present - check if compressor was compiled in.
  * @compr_type: compressor type to check
  *
@@ -322,7 +308,7 @@ static inline long long ubifs_reported_space(const struct ubifs_info *c,
 {
 	int divisor, factor;
 
-	divisor = UBIFS_MAX_DATA_NODE_SZ + (c->max_idx_node_sz << 1);
+	divisor = UBIFS_MAX_DATA_NODE_SZ + (c->max_idx_node_sz * 3);
 	factor = UBIFS_MAX_DATA_NODE_SZ - UBIFS_DATA_NODE_SZ;
 	do_div(free, divisor);
 
diff --git a/fs/ubifs/orphan.c b/fs/ubifs/orphan.c
index 3afeb9242c6a..02d3462f4d3e 100644
--- a/fs/ubifs/orphan.c
+++ b/fs/ubifs/orphan.c
@@ -310,10 +310,10 @@ static int write_orph_node(struct ubifs_info *c, int atomic)
 	c->cmt_orphans -= cnt;
 	spin_unlock(&c->orphan_lock);
 	if (c->cmt_orphans)
-		orph->cmt_no = cpu_to_le64(c->cmt_no + 1);
+		orph->cmt_no = cpu_to_le64(c->cmt_no);
 	else
 		/* Mark the last node of the commit */
-		orph->cmt_no = cpu_to_le64((c->cmt_no + 1) | (1ULL << 63));
+		orph->cmt_no = cpu_to_le64((c->cmt_no) | (1ULL << 63));
 	ubifs_assert(c->ohead_offs + len <= c->leb_size);
 	ubifs_assert(c->ohead_lnum >= c->orph_first);
 	ubifs_assert(c->ohead_lnum <= c->orph_last);
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index ca1e2d4e03cc..f71e6b8822c4 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -30,7 +30,6 @@
 #include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/ctype.h>
-#include <linux/random.h>
 #include <linux/kthread.h>
 #include <linux/parser.h>
 #include <linux/seq_file.h>
@@ -149,7 +148,7 @@ struct inode *ubifs_iget(struct super_block *sb, unsigned long inum)
 	if (err)
 		goto out_invalid;
 
-	/* Disable readahead */
+	/* Disable read-ahead */
 	inode->i_mapping->backing_dev_info = &c->bdi;
 
 	switch (inode->i_mode & S_IFMT) {
@@ -278,7 +277,7 @@ static void ubifs_destroy_inode(struct inode *inode)
  */
 static int ubifs_write_inode(struct inode *inode, int wait)
 {
-	int err;
+	int err = 0;
 	struct ubifs_info *c = inode->i_sb->s_fs_info;
 	struct ubifs_inode *ui = ubifs_inode(inode);
 
@@ -299,10 +298,18 @@ static int ubifs_write_inode(struct inode *inode, int wait)
 		return 0;
 	}
 
-	dbg_gen("inode %lu", inode->i_ino);
-	err = ubifs_jnl_write_inode(c, inode, 0);
-	if (err)
-		ubifs_err("can't write inode %lu, error %d", inode->i_ino, err);
+	/*
+	 * As an optimization, do not write orphan inodes to the media just
+	 * because this is not needed.
+	 */
+	dbg_gen("inode %lu, mode %#x, nlink %u",
+		inode->i_ino, (int)inode->i_mode, inode->i_nlink);
+	if (inode->i_nlink) {
+		err = ubifs_jnl_write_inode(c, inode);
+		if (err)
+			ubifs_err("can't write inode %lu, error %d",
+				  inode->i_ino, err);
+	}
 
 	ui->dirty = 0;
 	mutex_unlock(&ui->ui_mutex);
@@ -314,8 +321,9 @@ static void ubifs_delete_inode(struct inode *inode)
 {
 	int err;
 	struct ubifs_info *c = inode->i_sb->s_fs_info;
+	struct ubifs_inode *ui = ubifs_inode(inode);
 
-	if (ubifs_inode(inode)->xattr)
+	if (ui->xattr)
 		/*
 		 * Extended attribute inode deletions are fully handled in
 		 * 'ubifs_removexattr()'. These inodes are special and have
@@ -323,7 +331,7 @@ static void ubifs_delete_inode(struct inode *inode)
 		 */
 		goto out;
 
-	dbg_gen("inode %lu", inode->i_ino);
+	dbg_gen("inode %lu, mode %#x", inode->i_ino, (int)inode->i_mode);
 	ubifs_assert(!atomic_read(&inode->i_count));
 	ubifs_assert(inode->i_nlink == 0);
 
@@ -331,15 +339,19 @@ static void ubifs_delete_inode(struct inode *inode)
 	if (is_bad_inode(inode))
 		goto out;
 
-	ubifs_inode(inode)->ui_size = inode->i_size = 0;
-	err = ubifs_jnl_write_inode(c, inode, 1);
+	ui->ui_size = inode->i_size = 0;
+	err = ubifs_jnl_delete_inode(c, inode);
 	if (err)
 		/*
 		 * Worst case we have a lost orphan inode wasting space, so a
-		 * simple error message is ok here.
+		 * simple error message is OK here.
 		 */
-		ubifs_err("can't write inode %lu, error %d", inode->i_ino, err);
+		ubifs_err("can't delete inode %lu, error %d",
+			  inode->i_ino, err);
+
 out:
+	if (ui->dirty)
+		ubifs_release_dirty_inode_budget(c, ui);
 	clear_inode(inode);
 }
 
@@ -1122,8 +1134,8 @@ static int mount_ubifs(struct ubifs_info *c)
 	if (err)
 		goto out_infos;
 
-	ubifs_msg("mounted UBI device %d, volume %d", c->vi.ubi_num,
-		  c->vi.vol_id);
+	ubifs_msg("mounted UBI device %d, volume %d, name \"%s\"",
+		  c->vi.ubi_num, c->vi.vol_id, c->vi.name);
 	if (mounted_read_only)
 		ubifs_msg("mounted read-only");
 	x = (long long)c->main_lebs * c->leb_size;
@@ -1469,6 +1481,7 @@ static void ubifs_put_super(struct super_block *sb)
 	 */
 	ubifs_assert(atomic_long_read(&c->dirty_pg_cnt) == 0);
 	ubifs_assert(c->budg_idx_growth == 0);
+	ubifs_assert(c->budg_dd_growth == 0);
 	ubifs_assert(c->budg_data_growth == 0);
 
 	/*
@@ -1657,7 +1670,6 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 	INIT_LIST_HEAD(&c->orph_new);
 
 	c->highest_inum = UBIFS_FIRST_INO;
-	get_random_bytes(&c->vfs_gen, sizeof(int));
 	c->lhead_lnum = c->ltail_lnum = UBIFS_LOG_LNUM;
 
 	ubi_get_volume_info(ubi, &c->vi);
@@ -1671,10 +1683,10 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	/*
-	 * UBIFS provids 'backing_dev_info' in order to disable readahead. For
+	 * UBIFS provides 'backing_dev_info' in order to disable read-ahead. For
 	 * UBIFS, I/O is not deferred, it is done immediately in readpage,
 	 * which means the user would have to wait not just for their own I/O
-	 * but the readahead I/O as well i.e. completely pointless.
+	 * but the read-ahead I/O as well i.e. completely pointless.
 	 *
 	 * Read-ahead will be disabled because @c->bdi.ra_pages is 0.
 	 */
diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c
index 8117e65ba2e9..8ac76b1c2d55 100644
--- a/fs/ubifs/tnc_commit.c
+++ b/fs/ubifs/tnc_commit.c
@@ -372,26 +372,25 @@ static int layout_in_gaps(struct ubifs_info *c, int cnt)
 		written = layout_leb_in_gaps(c, p);
 		if (written < 0) {
 			err = written;
-			if (err == -ENOSPC) {
-				if (!dbg_force_in_the_gaps_enabled) {
-					/*
-					 * Do not print scary warnings if the
-					 * debugging option which forces
-					 * in-the-gaps is enabled.
-					 */
-					ubifs_err("out of space");
-					spin_lock(&c->space_lock);
-					dbg_dump_budg(c);
-					spin_unlock(&c->space_lock);
-					dbg_dump_lprops(c);
-				}
-				/* Try to commit anyway */
-				err = 0;
-				break;
+			if (err != -ENOSPC) {
+				kfree(c->gap_lebs);
+				c->gap_lebs = NULL;
+				return err;
 			}
-			kfree(c->gap_lebs);
-			c->gap_lebs = NULL;
-			return err;
+			if (!dbg_force_in_the_gaps_enabled) {
+				/*
+				 * Do not print scary warnings if the debugging
+				 * option which forces in-the-gaps is enabled.
+				 */
+				ubifs_err("out of space");
+				spin_lock(&c->space_lock);
+				dbg_dump_budg(c);
+				spin_unlock(&c->space_lock);
+				dbg_dump_lprops(c);
+			}
+			/* Try to commit anyway */
+			err = 0;
+			break;
 		}
 		p++;
 		cnt -= written;
diff --git a/fs/ubifs/ubifs-media.h b/fs/ubifs/ubifs-media.h
index 0cc7da9bed47..bd2121f3426e 100644
--- a/fs/ubifs/ubifs-media.h
+++ b/fs/ubifs/ubifs-media.h
@@ -228,10 +228,10 @@ enum {
 /* Minimum number of orphan area logical eraseblocks */
 #define UBIFS_MIN_ORPH_LEBS 1
 /*
- * Minimum number of main area logical eraseblocks (buds, 2 for the index, 1
+ * Minimum number of main area logical eraseblocks (buds, 3 for the index, 1
  * for GC, 1 for deletions, and at least 1 for committed data).
  */
-#define UBIFS_MIN_MAIN_LEBS (UBIFS_MIN_BUD_LEBS + 5)
+#define UBIFS_MIN_MAIN_LEBS (UBIFS_MIN_BUD_LEBS + 6)
 
 /* Minimum number of logical eraseblocks */
 #define UBIFS_MIN_LEB_CNT (UBIFS_SB_LEBS + UBIFS_MST_LEBS + \
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index e4f89f271827..d7f706f7a302 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -20,8 +20,6 @@
  *          Adrian Hunter
  */
 
-/* Implementation version 0.7 */
-
 #ifndef __UBIFS_H__
 #define __UBIFS_H__
 
@@ -322,6 +320,8 @@ struct ubifs_gced_idx_leb {
  * struct ubifs_inode - UBIFS in-memory inode description.
  * @vfs_inode: VFS inode description object
  * @creat_sqnum: sequence number at time of creation
+ * @del_cmtno: commit number corresponding to the time the inode was deleted,
+ *             protected by @c->commit_sem;
  * @xattr_size: summarized size of all extended attributes in bytes
  * @xattr_cnt: count of extended attributes this inode has
  * @xattr_names: sum of lengths of all extended attribute names belonging to
@@ -373,6 +373,7 @@ struct ubifs_gced_idx_leb {
 struct ubifs_inode {
 	struct inode vfs_inode;
 	unsigned long long creat_sqnum;
+	unsigned long long del_cmtno;
 	unsigned int xattr_size;
 	unsigned int xattr_cnt;
 	unsigned int xattr_names;
@@ -779,7 +780,7 @@ struct ubifs_compressor {
 /**
  * struct ubifs_budget_req - budget requirements of an operation.
  *
- * @fast: non-zero if the budgeting should try to aquire budget quickly and
+ * @fast: non-zero if the budgeting should try to acquire budget quickly and
  *        should not try to call write-back
  * @recalculate: non-zero if @idx_growth, @data_growth, and @dd_growth fields
  *               have to be re-calculated
@@ -805,21 +806,31 @@ struct ubifs_compressor {
  * An inode may contain 4KiB of data at max., thus the widths of @new_ino_d
  * is 13 bits, and @dirtied_ino_d - 15, because up to 4 inodes may be made
  * dirty by the re-name operation.
+ *
+ * Note, UBIFS aligns node lengths to 8-bytes boundary, so the requester has to
+ * make sure the amount of inode data which contribute to @new_ino_d and
+ * @dirtied_ino_d fields are aligned.
  */
 struct ubifs_budget_req {
 	unsigned int fast:1;
 	unsigned int recalculate:1;
+#ifndef UBIFS_DEBUG
 	unsigned int new_page:1;
 	unsigned int dirtied_page:1;
 	unsigned int new_dent:1;
 	unsigned int mod_dent:1;
 	unsigned int new_ino:1;
 	unsigned int new_ino_d:13;
-#ifndef UBIFS_DEBUG
 	unsigned int dirtied_ino:4;
 	unsigned int dirtied_ino_d:15;
 #else
 	/* Not bit-fields to check for overflows */
+	unsigned int new_page;
+	unsigned int dirtied_page;
+	unsigned int new_dent;
+	unsigned int mod_dent;
+	unsigned int new_ino;
+	unsigned int new_ino_d;
 	unsigned int dirtied_ino;
 	unsigned int dirtied_ino_d;
 #endif
@@ -860,13 +871,13 @@ struct ubifs_mount_opts {
  * struct ubifs_info - UBIFS file-system description data structure
  * (per-superblock).
  * @vfs_sb: VFS @struct super_block object
- * @bdi: backing device info object to make VFS happy and disable readahead
+ * @bdi: backing device info object to make VFS happy and disable read-ahead
  *
  * @highest_inum: highest used inode number
- * @vfs_gen: VFS inode generation counter
  * @max_sqnum: current global sequence number
- * @cmt_no: commit number (last successfully completed commit)
- * @cnt_lock: protects @highest_inum, @vfs_gen, and @max_sqnum counters
+ * @cmt_no: commit number of the last successfully completed commit, protected
+ *          by @commit_sem
+ * @cnt_lock: protects @highest_inum and @max_sqnum counters
  * @fmt_version: UBIFS on-flash format version
  * @uuid: UUID from super block
  *
@@ -1103,7 +1114,6 @@ struct ubifs_info {
 	struct backing_dev_info bdi;
 
 	ino_t highest_inum;
-	unsigned int vfs_gen;
 	unsigned long long max_sqnum;
 	unsigned long long cmt_no;
 	spinlock_t cnt_lock;
@@ -1346,6 +1356,7 @@ extern struct backing_dev_info ubifs_backing_dev_info;
 extern struct ubifs_compressor *ubifs_compressors[UBIFS_COMPR_TYPES_CNT];
 
 /* io.c */
+void ubifs_ro_mode(struct ubifs_info *c, int err);
 int ubifs_wbuf_write_nolock(struct ubifs_wbuf *wbuf, void *buf, int len);
 int ubifs_wbuf_seek_nolock(struct ubifs_wbuf *wbuf, int lnum, int offs,
 			   int dtype);
@@ -1399,8 +1410,8 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir,
 		     int deletion, int xent);
 int ubifs_jnl_write_data(struct ubifs_info *c, const struct inode *inode,
 			 const union ubifs_key *key, const void *buf, int len);
-int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode,
-			  int last_reference);
+int ubifs_jnl_write_inode(struct ubifs_info *c, const struct inode *inode);
+int ubifs_jnl_delete_inode(struct ubifs_info *c, const struct inode *inode);
 int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir,
 		     const struct dentry *old_dentry,
 		     const struct inode *new_dir,
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 1388a078e1a9..649bec78b645 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -61,7 +61,7 @@
 
 /*
  * Limit the number of extended attributes per inode so that the total size
- * (xattr_size) is guaranteeded to fit in an 'unsigned int'.
+ * (@xattr_size) is guaranteeded to fit in an 'unsigned int'.
  */
 #define MAX_XATTRS_PER_INODE 65535
 
@@ -103,14 +103,14 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 	struct inode *inode;
 	struct ubifs_inode *ui, *host_ui = ubifs_inode(host);
 	struct ubifs_budget_req req = { .new_ino = 1, .new_dent = 1,
-					.new_ino_d = size, .dirtied_ino = 1,
-					.dirtied_ino_d = host_ui->data_len};
+				.new_ino_d = ALIGN(size, 8), .dirtied_ino = 1,
+				.dirtied_ino_d = ALIGN(host_ui->data_len, 8) };
 
 	if (host_ui->xattr_cnt >= MAX_XATTRS_PER_INODE)
 		return -ENOSPC;
 	/*
 	 * Linux limits the maximum size of the extended attribute names list
-	 * to %XATTR_LIST_MAX. This means we should not allow creating more*
+	 * to %XATTR_LIST_MAX. This means we should not allow creating more
 	 * extended attributes if the name list becomes larger. This limitation
 	 * is artificial for UBIFS, though.
 	 */
@@ -128,7 +128,6 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 		goto out_budg;
 	}
 
-	mutex_lock(&host_ui->ui_mutex);
 	/* Re-define all operations to be "nothing" */
 	inode->i_mapping->a_ops = &none_address_operations;
 	inode->i_op = &none_inode_operations;
@@ -141,23 +140,19 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 	ui->data = kmalloc(size, GFP_NOFS);
 	if (!ui->data) {
 		err = -ENOMEM;
-		goto out_unlock;
+		goto out_free;
 	}
-
 	memcpy(ui->data, value, size);
+	inode->i_size = ui->ui_size = size;
+	ui->data_len = size;
+
+	mutex_lock(&host_ui->ui_mutex);
 	host->i_ctime = ubifs_current_time(host);
 	host_ui->xattr_cnt += 1;
 	host_ui->xattr_size += CALC_DENT_SIZE(nm->len);
 	host_ui->xattr_size += CALC_XATTR_BYTES(size);
 	host_ui->xattr_names += nm->len;
 
-	/*
-	 * We do not use i_size_write() because nobody can race with us as we
-	 * are holding host @host->i_mutex - every xattr operation for this
-	 * inode is serialized by it.
-	 */
-	inode->i_size = ui->ui_size = size;
-	ui->data_len = size;
 	err = ubifs_jnl_update(c, host, nm, inode, 0, 1);
 	if (err)
 		goto out_cancel;
@@ -172,8 +167,8 @@ out_cancel:
 	host_ui->xattr_cnt -= 1;
 	host_ui->xattr_size -= CALC_DENT_SIZE(nm->len);
 	host_ui->xattr_size -= CALC_XATTR_BYTES(size);
-out_unlock:
 	mutex_unlock(&host_ui->ui_mutex);
+out_free:
 	make_bad_inode(inode);
 	iput(inode);
 out_budg:
@@ -200,29 +195,28 @@ static int change_xattr(struct ubifs_info *c, struct inode *host,
 	struct ubifs_inode *host_ui = ubifs_inode(host);
 	struct ubifs_inode *ui = ubifs_inode(inode);
 	struct ubifs_budget_req req = { .dirtied_ino = 2,
-				.dirtied_ino_d = size + host_ui->data_len };
+		.dirtied_ino_d = ALIGN(size, 8) + ALIGN(host_ui->data_len, 8) };
 
 	ubifs_assert(ui->data_len == inode->i_size);
 	err = ubifs_budget_space(c, &req);
 	if (err)
 		return err;
 
-	mutex_lock(&host_ui->ui_mutex);
-	host->i_ctime = ubifs_current_time(host);
-	host_ui->xattr_size -= CALC_XATTR_BYTES(ui->data_len);
-	host_ui->xattr_size += CALC_XATTR_BYTES(size);
-
 	kfree(ui->data);
 	ui->data = kmalloc(size, GFP_NOFS);
 	if (!ui->data) {
 		err = -ENOMEM;
-		goto out_unlock;
+		goto out_free;
 	}
-
 	memcpy(ui->data, value, size);
 	inode->i_size = ui->ui_size = size;
 	ui->data_len = size;
 
+	mutex_lock(&host_ui->ui_mutex);
+	host->i_ctime = ubifs_current_time(host);
+	host_ui->xattr_size -= CALC_XATTR_BYTES(ui->data_len);
+	host_ui->xattr_size += CALC_XATTR_BYTES(size);
+
 	/*
 	 * It is important to write the host inode after the xattr inode
 	 * because if the host inode gets synchronized (via 'fsync()'), then
@@ -240,9 +234,9 @@ static int change_xattr(struct ubifs_info *c, struct inode *host,
 out_cancel:
 	host_ui->xattr_size -= CALC_XATTR_BYTES(size);
 	host_ui->xattr_size += CALC_XATTR_BYTES(ui->data_len);
-	make_bad_inode(inode);
-out_unlock:
 	mutex_unlock(&host_ui->ui_mutex);
+	make_bad_inode(inode);
+out_free:
 	ubifs_release_budget(c, &req);
 	return err;
 }
@@ -312,6 +306,7 @@ int ubifs_setxattr(struct dentry *dentry, const char *name,
 
 	dbg_gen("xattr '%s', host ino %lu ('%.*s'), size %zd", name,
 		host->i_ino, dentry->d_name.len, dentry->d_name.name, size);
+	ubifs_assert(mutex_is_locked(&host->i_mutex));
 
 	if (size > UBIFS_MAX_INO_DATA)
 		return -ERANGE;
@@ -384,7 +379,6 @@ ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
 	if (!xent)
 		return -ENOMEM;
 
-	mutex_lock(&host->i_mutex);
 	xent_key_init(c, &key, host->i_ino, &nm);
 	err = ubifs_tnc_lookup_nm(c, &key, xent, &nm);
 	if (err) {
@@ -419,7 +413,6 @@ ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
 out_iput:
 	iput(inode);
 out_unlock:
-	mutex_unlock(&host->i_mutex);
 	kfree(xent);
 	return err;
 }
@@ -449,8 +442,6 @@ ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size)
 		return -ERANGE;
 
 	lowest_xent_key(c, &key, host->i_ino);
-
-	mutex_lock(&host->i_mutex);
 	while (1) {
 		int type;
 
@@ -479,7 +470,6 @@ ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size)
 		pxent = xent;
 		key_read(c, &xent->key, &key);
 	}
-	mutex_unlock(&host->i_mutex);
 
 	kfree(pxent);
 	if (err != -ENOENT) {
@@ -497,8 +487,8 @@ static int remove_xattr(struct ubifs_info *c, struct inode *host,
 	int err;
 	struct ubifs_inode *host_ui = ubifs_inode(host);
 	struct ubifs_inode *ui = ubifs_inode(inode);
-	struct ubifs_budget_req req = { .dirtied_ino = 1, .mod_dent = 1,
-					.dirtied_ino_d = host_ui->data_len };
+	struct ubifs_budget_req req = { .dirtied_ino = 2, .mod_dent = 1,
+				.dirtied_ino_d = ALIGN(host_ui->data_len, 8) };
 
 	ubifs_assert(ui->data_len == inode->i_size);
 
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 3e30e40aa24d..3141969b456d 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -1233,7 +1233,7 @@ static int ufs_show_options(struct seq_file *seq, struct vfsmount *vfs)
 {
 	struct ufs_sb_info *sbi = UFS_SB(vfs->mnt_sb);
 	unsigned mval = sbi->s_mount_opt & UFS_MOUNT_UFSTYPE;
-	const struct match_token *tp = tokens;
+	struct match_token *tp = tokens;
 
 	while (tp->token != Opt_onerror_panic && tp->token != mval)
 		++tp;
diff --git a/fs/xfs/linux-2.6/sema.h b/fs/xfs/linux-2.6/sema.h
deleted file mode 100644
index 3abe7e9ceb33..000000000000
--- a/fs/xfs/linux-2.6/sema.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_SUPPORT_SEMA_H__
-#define __XFS_SUPPORT_SEMA_H__
-
-#include <linux/time.h>
-#include <linux/wait.h>
-#include <linux/semaphore.h>
-#include <asm/atomic.h>
-
-/*
- * sema_t structure just maps to struct semaphore in Linux kernel.
- */
-
-typedef struct semaphore sema_t;
-
-#define initnsema(sp, val, name)	sema_init(sp, val)
-#define psema(sp, b)			down(sp)
-#define vsema(sp)			up(sp)
-#define freesema(sema)			do { } while (0)
-
-static inline int issemalocked(sema_t *sp)
-{
-	return down_trylock(sp) || (up(sp), 0);
-}
-
-/*
- * Map cpsema (try to get the sema) to down_trylock. We need to switch
- * the return values since cpsema returns 1 (acquired) 0 (failed) and
- * down_trylock returns the reverse 0 (acquired) 1 (failed).
- */
-static inline int cpsema(sema_t *sp)
-{
-	return down_trylock(sp) ? 0 : 1;
-}
-
-#endif /* __XFS_SUPPORT_SEMA_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 0b211cba1909..f42f80a3b1fa 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -73,7 +73,6 @@ xfs_page_trace(
 	unsigned long	pgoff)
 {
 	xfs_inode_t	*ip;
-	bhv_vnode_t	*vp = vn_from_inode(inode);
 	loff_t		isize = i_size_read(inode);
 	loff_t		offset = page_offset(page);
 	int		delalloc = -1, unmapped = -1, unwritten = -1;
@@ -81,7 +80,7 @@ xfs_page_trace(
 	if (page_has_buffers(page))
 		xfs_count_page_state(page, &delalloc, &unmapped, &unwritten);
 
-	ip = xfs_vtoi(vp);
+	ip = XFS_I(inode);
 	if (!ip->i_rwtrace)
 		return;
 
@@ -675,7 +674,7 @@ xfs_probe_cluster(
 			} else
 				pg_offset = PAGE_CACHE_SIZE;
 
-			if (page->index == tindex && !TestSetPageLocked(page)) {
+			if (page->index == tindex && trylock_page(page)) {
 				pg_len = xfs_probe_page(page, pg_offset, mapped);
 				unlock_page(page);
 			}
@@ -759,7 +758,7 @@ xfs_convert_page(
 
 	if (page->index != tindex)
 		goto fail;
-	if (TestSetPageLocked(page))
+	if (!trylock_page(page))
 		goto fail;
 	if (PageWriteback(page))
 		goto fail_unlock_page;
@@ -1104,7 +1103,7 @@ xfs_page_state_convert(
 			 * that we are writing into for the first time.
 			 */
 			type = IOMAP_NEW;
-			if (!test_and_set_bit(BH_Lock, &bh->b_state)) {
+			if (trylock_buffer(bh)) {
 				ASSERT(buffer_mapped(bh));
 				if (iomap_valid)
 					all_bh = 1;
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index 9cc8f0213095..986061ae1b9b 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -58,7 +58,7 @@ xfs_buf_trace(
 		bp, id,
 		(void *)(unsigned long)bp->b_flags,
 		(void *)(unsigned long)bp->b_hold.counter,
-		(void *)(unsigned long)bp->b_sema.count.counter,
+		(void *)(unsigned long)bp->b_sema.count,
 		(void *)current,
 		data, ra,
 		(void *)(unsigned long)((bp->b_file_offset>>32) & 0xffffffff),
@@ -253,7 +253,7 @@ _xfs_buf_initialize(
 
 	memset(bp, 0, sizeof(xfs_buf_t));
 	atomic_set(&bp->b_hold, 1);
-	init_MUTEX_LOCKED(&bp->b_iodonesema);
+	init_completion(&bp->b_iowait);
 	INIT_LIST_HEAD(&bp->b_list);
 	INIT_LIST_HEAD(&bp->b_hash_list);
 	init_MUTEX_LOCKED(&bp->b_sema); /* held, no waiters */
@@ -838,6 +838,7 @@ xfs_buf_rele(
 		return;
 	}
 
+	ASSERT(atomic_read(&bp->b_hold) > 0);
 	if (atomic_dec_and_lock(&bp->b_hold, &hash->bh_lock)) {
 		if (bp->b_relse) {
 			atomic_inc(&bp->b_hold);
@@ -851,11 +852,6 @@ xfs_buf_rele(
 			spin_unlock(&hash->bh_lock);
 			xfs_buf_free(bp);
 		}
-	} else {
-		/*
-		 * Catch reference count leaks
-		 */
-		ASSERT(atomic_read(&bp->b_hold) >= 0);
 	}
 }
 
@@ -1037,7 +1033,7 @@ xfs_buf_ioend(
 			xfs_buf_iodone_work(&bp->b_iodone_work);
 		}
 	} else {
-		up(&bp->b_iodonesema);
+		complete(&bp->b_iowait);
 	}
 }
 
@@ -1275,7 +1271,7 @@ xfs_buf_iowait(
 	XB_TRACE(bp, "iowait", 0);
 	if (atomic_read(&bp->b_io_remaining))
 		blk_run_address_space(bp->b_target->bt_mapping);
-	down(&bp->b_iodonesema);
+	wait_for_completion(&bp->b_iowait);
 	XB_TRACE(bp, "iowaited", (long)bp->b_error);
 	return bp->b_error;
 }
@@ -1799,7 +1795,7 @@ int __init
 xfs_buf_init(void)
 {
 #ifdef XFS_BUF_TRACE
-	xfs_buf_trace_buf = ktrace_alloc(XFS_BUF_TRACE_SIZE, KM_SLEEP);
+	xfs_buf_trace_buf = ktrace_alloc(XFS_BUF_TRACE_SIZE, KM_NOFS);
 #endif
 
 	xfs_buf_zone = kmem_zone_init_flags(sizeof(xfs_buf_t), "xfs_buf",
diff --git a/fs/xfs/linux-2.6/xfs_buf.h b/fs/xfs/linux-2.6/xfs_buf.h
index 29d1d4adc078..fe0109956656 100644
--- a/fs/xfs/linux-2.6/xfs_buf.h
+++ b/fs/xfs/linux-2.6/xfs_buf.h
@@ -157,7 +157,7 @@ typedef struct xfs_buf {
 	xfs_buf_iodone_t	b_iodone;	/* I/O completion function */
 	xfs_buf_relse_t		b_relse;	/* releasing function */
 	xfs_buf_bdstrat_t	b_strat;	/* pre-write function */
-	struct semaphore	b_iodonesema;	/* Semaphore for I/O waiters */
+	struct completion	b_iowait;	/* queue for I/O waiters */
 	void			*b_fspriv;
 	void			*b_fspriv2;
 	void			*b_fspriv3;
@@ -352,7 +352,7 @@ extern void xfs_buf_trace(xfs_buf_t *, char *, void *, void *);
 #define XFS_BUF_CPSEMA(bp)	(xfs_buf_cond_lock(bp) == 0)
 #define XFS_BUF_VSEMA(bp)	xfs_buf_unlock(bp)
 #define XFS_BUF_PSEMA(bp,x)	xfs_buf_lock(bp)
-#define XFS_BUF_V_IODONESEMA(bp) up(&bp->b_iodonesema);
+#define XFS_BUF_FINISH_IOWAIT(bp)	complete(&bp->b_iowait);
 
 #define XFS_BUF_SET_TARGET(bp, target)	((bp)->b_target = (target))
 #define XFS_BUF_TARGET(bp)		((bp)->b_target)
diff --git a/fs/xfs/linux-2.6/xfs_export.c b/fs/xfs/linux-2.6/xfs_export.c
index 987fe84f7b13..24fd598af846 100644
--- a/fs/xfs/linux-2.6/xfs_export.c
+++ b/fs/xfs/linux-2.6/xfs_export.c
@@ -139,7 +139,7 @@ xfs_nfs_get_inode(
 	}
 
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
-	return ip->i_vnode;
+	return VFS_I(ip);
 }
 
 STATIC struct dentry *
@@ -167,7 +167,7 @@ xfs_fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
 	if (!inode)
 		return NULL;
 	if (IS_ERR(inode))
-		return ERR_PTR(PTR_ERR(inode));
+		return ERR_CAST(inode);
 	result = d_alloc_anon(inode);
 	if (!result) {
 		iput(inode);
@@ -198,7 +198,7 @@ xfs_fs_fh_to_parent(struct super_block *sb, struct fid *fid,
 	if (!inode)
 		return NULL;
 	if (IS_ERR(inode))
-		return ERR_PTR(PTR_ERR(inode));
+		return ERR_CAST(inode);
 	result = d_alloc_anon(inode);
 	if (!result) {
 		iput(inode);
@@ -219,9 +219,9 @@ xfs_fs_get_parent(
 	if (unlikely(error))
 		return ERR_PTR(-error);
 
-	parent = d_alloc_anon(cip->i_vnode);
+	parent = d_alloc_anon(VFS_I(cip));
 	if (unlikely(!parent)) {
-		iput(cip->i_vnode);
+		iput(VFS_I(cip));
 		return ERR_PTR(-ENOMEM);
 	}
 	return parent;
diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c
index 5f60363b9343..5311c1acdd40 100644
--- a/fs/xfs/linux-2.6/xfs_file.c
+++ b/fs/xfs/linux-2.6/xfs_file.c
@@ -475,6 +475,7 @@ const struct file_operations xfs_invis_file_operations = {
 const struct file_operations xfs_dir_file_operations = {
 	.read		= generic_read_dir,
 	.readdir	= xfs_file_readdir,
+	.llseek		= generic_file_llseek,
 	.unlocked_ioctl	= xfs_file_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl	= xfs_file_compat_ioctl,
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 1eefe61f0e10..36caa6d957df 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -31,7 +31,7 @@ xfs_tosspages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	struct address_space *mapping = ip->i_vnode->i_mapping;
+	struct address_space *mapping = VFS_I(ip)->i_mapping;
 
 	if (mapping->nrpages)
 		truncate_inode_pages(mapping, first);
@@ -44,7 +44,7 @@ xfs_flushinval_pages(
 	xfs_off_t	last,
 	int		fiopt)
 {
-	struct address_space *mapping = ip->i_vnode->i_mapping;
+	struct address_space *mapping = VFS_I(ip)->i_mapping;
 	int		ret = 0;
 
 	if (mapping->nrpages) {
@@ -64,7 +64,7 @@ xfs_flush_pages(
 	uint64_t	flags,
 	int		fiopt)
 {
-	struct address_space *mapping = ip->i_vnode->i_mapping;
+	struct address_space *mapping = VFS_I(ip)->i_mapping;
 	int		ret = 0;
 	int		ret2;
 
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index acb978d9d085..48799ba7e3e6 100644
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -245,7 +245,7 @@ xfs_vget_fsop_handlereq(
 
 	xfs_iunlock(ip, XFS_ILOCK_SHARED);
 
-	*inode = XFS_ITOV(ip);
+	*inode = VFS_I(ip);
 	return 0;
 }
 
@@ -927,7 +927,7 @@ STATIC void
 xfs_diflags_to_linux(
 	struct xfs_inode	*ip)
 {
-	struct inode		*inode = XFS_ITOV(ip);
+	struct inode		*inode = VFS_I(ip);
 	unsigned int		xflags = xfs_ip2xflags(ip);
 
 	if (xflags & XFS_XFLAG_IMMUTABLE)
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c
index e88f51028086..095d271f3434 100644
--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -62,7 +62,7 @@ void
 xfs_synchronize_atime(
 	xfs_inode_t	*ip)
 {
-	struct inode	*inode = ip->i_vnode;
+	struct inode	*inode = VFS_I(ip);
 
 	if (inode) {
 		ip->i_d.di_atime.t_sec = (__int32_t)inode->i_atime.tv_sec;
@@ -79,7 +79,7 @@ void
 xfs_mark_inode_dirty_sync(
 	xfs_inode_t	*ip)
 {
-	struct inode	*inode = ip->i_vnode;
+	struct inode	*inode = VFS_I(ip);
 
 	if (inode)
 		mark_inode_dirty_sync(inode);
@@ -89,36 +89,31 @@ xfs_mark_inode_dirty_sync(
  * Change the requested timestamp in the given inode.
  * We don't lock across timestamp updates, and we don't log them but
  * we do record the fact that there is dirty information in core.
- *
- * NOTE -- callers MUST combine XFS_ICHGTIME_MOD or XFS_ICHGTIME_CHG
- *		with XFS_ICHGTIME_ACC to be sure that access time
- *		update will take.  Calling first with XFS_ICHGTIME_ACC
- *		and then XFS_ICHGTIME_MOD may fail to modify the access
- *		timestamp if the filesystem is mounted noacctm.
  */
 void
 xfs_ichgtime(
 	xfs_inode_t	*ip,
 	int		flags)
 {
-	struct inode	*inode = vn_to_inode(XFS_ITOV(ip));
+	struct inode	*inode = VFS_I(ip);
 	timespec_t	tv;
+	int		sync_it = 0;
+
+	tv = current_fs_time(inode->i_sb);
 
-	nanotime(&tv);
-	if (flags & XFS_ICHGTIME_MOD) {
+	if ((flags & XFS_ICHGTIME_MOD) &&
+	    !timespec_equal(&inode->i_mtime, &tv)) {
 		inode->i_mtime = tv;
 		ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec;
 		ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec;
+		sync_it = 1;
 	}
-	if (flags & XFS_ICHGTIME_ACC) {
-		inode->i_atime = tv;
-		ip->i_d.di_atime.t_sec = (__int32_t)tv.tv_sec;
-		ip->i_d.di_atime.t_nsec = (__int32_t)tv.tv_nsec;
-	}
-	if (flags & XFS_ICHGTIME_CHG) {
+	if ((flags & XFS_ICHGTIME_CHG) &&
+	    !timespec_equal(&inode->i_ctime, &tv)) {
 		inode->i_ctime = tv;
 		ip->i_d.di_ctime.t_sec = (__int32_t)tv.tv_sec;
 		ip->i_d.di_ctime.t_nsec = (__int32_t)tv.tv_nsec;
+		sync_it = 1;
 	}
 
 	/*
@@ -130,55 +125,11 @@ xfs_ichgtime(
 	 * ensure that the compiler does not reorder the update
 	 * of i_update_core above the timestamp updates above.
 	 */
-	SYNCHRONIZE();
-	ip->i_update_core = 1;
-	if (!(inode->i_state & I_NEW))
+	if (sync_it) {
+		SYNCHRONIZE();
+		ip->i_update_core = 1;
 		mark_inode_dirty_sync(inode);
-}
-
-/*
- * Variant on the above which avoids querying the system clock
- * in situations where we know the Linux inode timestamps have
- * just been updated (and so we can update our inode cheaply).
- */
-void
-xfs_ichgtime_fast(
-	xfs_inode_t	*ip,
-	struct inode	*inode,
-	int		flags)
-{
-	timespec_t	*tvp;
-
-	/*
-	 * Atime updates for read() & friends are handled lazily now, and
-	 * explicit updates must go through xfs_ichgtime()
-	 */
-	ASSERT((flags & XFS_ICHGTIME_ACC) == 0);
-
-	if (flags & XFS_ICHGTIME_MOD) {
-		tvp = &inode->i_mtime;
-		ip->i_d.di_mtime.t_sec = (__int32_t)tvp->tv_sec;
-		ip->i_d.di_mtime.t_nsec = (__int32_t)tvp->tv_nsec;
 	}
-	if (flags & XFS_ICHGTIME_CHG) {
-		tvp = &inode->i_ctime;
-		ip->i_d.di_ctime.t_sec = (__int32_t)tvp->tv_sec;
-		ip->i_d.di_ctime.t_nsec = (__int32_t)tvp->tv_nsec;
-	}
-
-	/*
-	 * We update the i_update_core field _after_ changing
-	 * the timestamps in order to coordinate properly with
-	 * xfs_iflush() so that we don't lose timestamp updates.
-	 * This keeps us from having to hold the inode lock
-	 * while doing this.  We use the SYNCHRONIZE macro to
-	 * ensure that the compiler does not reorder the update
-	 * of i_update_core above the timestamp updates above.
-	 */
-	SYNCHRONIZE();
-	ip->i_update_core = 1;
-	if (!(inode->i_state & I_NEW))
-		mark_inode_dirty_sync(inode);
 }
 
 /*
@@ -299,7 +250,7 @@ xfs_vn_mknod(
 	if (unlikely(error))
 		goto out_free_acl;
 
-	inode = ip->i_vnode;
+	inode = VFS_I(ip);
 
 	error = xfs_init_security(inode, dir);
 	if (unlikely(error))
@@ -366,7 +317,7 @@ xfs_vn_lookup(
 		return NULL;
 	}
 
-	return d_splice_alias(cip->i_vnode, dentry);
+	return d_splice_alias(VFS_I(cip), dentry);
 }
 
 STATIC struct dentry *
@@ -399,12 +350,12 @@ xfs_vn_ci_lookup(
 
 	/* if exact match, just splice and exit */
 	if (!ci_name.name)
-		return d_splice_alias(ip->i_vnode, dentry);
+		return d_splice_alias(VFS_I(ip), dentry);
 
 	/* else case-insensitive match... */
 	dname.name = ci_name.name;
 	dname.len = ci_name.len;
-	dentry = d_add_ci(ip->i_vnode, dentry, &dname);
+	dentry = d_add_ci(dentry, VFS_I(ip), &dname);
 	kmem_free(ci_name.name);
 	return dentry;
 }
@@ -478,7 +429,7 @@ xfs_vn_symlink(
 	if (unlikely(error))
 		goto out;
 
-	inode = cip->i_vnode;
+	inode = VFS_I(cip);
 
 	error = xfs_init_security(inode, dir);
 	if (unlikely(error))
@@ -710,7 +661,7 @@ out_error:
 	return error;
 }
 
-const struct inode_operations xfs_inode_operations = {
+static const struct inode_operations xfs_inode_operations = {
 	.permission		= xfs_vn_permission,
 	.truncate		= xfs_vn_truncate,
 	.getattr		= xfs_vn_getattr,
@@ -722,7 +673,7 @@ const struct inode_operations xfs_inode_operations = {
 	.fallocate		= xfs_vn_fallocate,
 };
 
-const struct inode_operations xfs_dir_inode_operations = {
+static const struct inode_operations xfs_dir_inode_operations = {
 	.create			= xfs_vn_create,
 	.lookup			= xfs_vn_lookup,
 	.link			= xfs_vn_link,
@@ -747,7 +698,7 @@ const struct inode_operations xfs_dir_inode_operations = {
 	.listxattr		= xfs_vn_listxattr,
 };
 
-const struct inode_operations xfs_dir_ci_inode_operations = {
+static const struct inode_operations xfs_dir_ci_inode_operations = {
 	.create			= xfs_vn_create,
 	.lookup			= xfs_vn_ci_lookup,
 	.link			= xfs_vn_link,
@@ -772,7 +723,7 @@ const struct inode_operations xfs_dir_ci_inode_operations = {
 	.listxattr		= xfs_vn_listxattr,
 };
 
-const struct inode_operations xfs_symlink_inode_operations = {
+static const struct inode_operations xfs_symlink_inode_operations = {
 	.readlink		= generic_readlink,
 	.follow_link		= xfs_vn_follow_link,
 	.put_link		= xfs_vn_put_link,
@@ -784,3 +735,98 @@ const struct inode_operations xfs_symlink_inode_operations = {
 	.removexattr		= generic_removexattr,
 	.listxattr		= xfs_vn_listxattr,
 };
+
+STATIC void
+xfs_diflags_to_iflags(
+	struct inode		*inode,
+	struct xfs_inode	*ip)
+{
+	if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
+		inode->i_flags |= S_IMMUTABLE;
+	else
+		inode->i_flags &= ~S_IMMUTABLE;
+	if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
+		inode->i_flags |= S_APPEND;
+	else
+		inode->i_flags &= ~S_APPEND;
+	if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
+		inode->i_flags |= S_SYNC;
+	else
+		inode->i_flags &= ~S_SYNC;
+	if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
+		inode->i_flags |= S_NOATIME;
+	else
+		inode->i_flags &= ~S_NOATIME;
+}
+
+/*
+ * Initialize the Linux inode, set up the operation vectors and
+ * unlock the inode.
+ *
+ * When reading existing inodes from disk this is called directly
+ * from xfs_iget, when creating a new inode it is called from
+ * xfs_ialloc after setting up the inode.
+ */
+void
+xfs_setup_inode(
+	struct xfs_inode	*ip)
+{
+	struct inode		*inode = ip->i_vnode;
+
+	inode->i_mode	= ip->i_d.di_mode;
+	inode->i_nlink	= ip->i_d.di_nlink;
+	inode->i_uid	= ip->i_d.di_uid;
+	inode->i_gid	= ip->i_d.di_gid;
+
+	switch (inode->i_mode & S_IFMT) {
+	case S_IFBLK:
+	case S_IFCHR:
+		inode->i_rdev =
+			MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
+			      sysv_minor(ip->i_df.if_u2.if_rdev));
+		break;
+	default:
+		inode->i_rdev = 0;
+		break;
+	}
+
+	inode->i_generation = ip->i_d.di_gen;
+	i_size_write(inode, ip->i_d.di_size);
+	inode->i_atime.tv_sec	= ip->i_d.di_atime.t_sec;
+	inode->i_atime.tv_nsec	= ip->i_d.di_atime.t_nsec;
+	inode->i_mtime.tv_sec	= ip->i_d.di_mtime.t_sec;
+	inode->i_mtime.tv_nsec	= ip->i_d.di_mtime.t_nsec;
+	inode->i_ctime.tv_sec	= ip->i_d.di_ctime.t_sec;
+	inode->i_ctime.tv_nsec	= ip->i_d.di_ctime.t_nsec;
+	xfs_diflags_to_iflags(inode, ip);
+	xfs_iflags_clear(ip, XFS_IMODIFIED);
+
+	switch (inode->i_mode & S_IFMT) {
+	case S_IFREG:
+		inode->i_op = &xfs_inode_operations;
+		inode->i_fop = &xfs_file_operations;
+		inode->i_mapping->a_ops = &xfs_address_space_operations;
+		break;
+	case S_IFDIR:
+		if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb))
+			inode->i_op = &xfs_dir_ci_inode_operations;
+		else
+			inode->i_op = &xfs_dir_inode_operations;
+		inode->i_fop = &xfs_dir_file_operations;
+		break;
+	case S_IFLNK:
+		inode->i_op = &xfs_symlink_inode_operations;
+		if (!(ip->i_df.if_flags & XFS_IFINLINE))
+			inode->i_mapping->a_ops = &xfs_address_space_operations;
+		break;
+	default:
+		inode->i_op = &xfs_inode_operations;
+		init_special_inode(inode, inode->i_mode, inode->i_rdev);
+		break;
+	}
+
+	xfs_iflags_clear(ip, XFS_INEW);
+	barrier();
+
+	unlock_new_inode(inode);
+}
diff --git a/fs/xfs/linux-2.6/xfs_iops.h b/fs/xfs/linux-2.6/xfs_iops.h
index d97ba934a2ac..8b1a1e31dc21 100644
--- a/fs/xfs/linux-2.6/xfs_iops.h
+++ b/fs/xfs/linux-2.6/xfs_iops.h
@@ -18,10 +18,7 @@
 #ifndef __XFS_IOPS_H__
 #define __XFS_IOPS_H__
 
-extern const struct inode_operations xfs_inode_operations;
-extern const struct inode_operations xfs_dir_inode_operations;
-extern const struct inode_operations xfs_dir_ci_inode_operations;
-extern const struct inode_operations xfs_symlink_inode_operations;
+struct xfs_inode;
 
 extern const struct file_operations xfs_file_operations;
 extern const struct file_operations xfs_dir_file_operations;
@@ -29,14 +26,6 @@ extern const struct file_operations xfs_invis_file_operations;
 
 extern ssize_t xfs_vn_listxattr(struct dentry *, char *data, size_t size);
 
-struct xfs_inode;
-extern void xfs_ichgtime(struct xfs_inode *, int);
-extern void xfs_ichgtime_fast(struct xfs_inode *, struct inode *, int);
-
-#define xfs_vtoi(vp) \
-	((struct xfs_inode *)vn_to_inode(vp)->i_private)
-
-#define XFS_I(inode) \
-	((struct xfs_inode *)(inode)->i_private)
+extern void xfs_setup_inode(struct xfs_inode *);
 
 #endif /* __XFS_IOPS_H__ */
diff --git a/fs/xfs/linux-2.6/xfs_linux.h b/fs/xfs/linux-2.6/xfs_linux.h
index 4d45d9351a6c..cc0f7b3a9795 100644
--- a/fs/xfs/linux-2.6/xfs_linux.h
+++ b/fs/xfs/linux-2.6/xfs_linux.h
@@ -45,13 +45,13 @@
 #include <mrlock.h>
 #include <sv.h>
 #include <mutex.h>
-#include <sema.h>
 #include <time.h>
 
 #include <support/ktrace.h>
 #include <support/debug.h>
 #include <support/uuid.h>
 
+#include <linux/semaphore.h>
 #include <linux/mm.h>
 #include <linux/kernel.h>
 #include <linux/blkdev.h>
@@ -126,8 +126,6 @@
 
 #define current_cpu()		(raw_smp_processor_id())
 #define current_pid()		(current->pid)
-#define current_fsuid(cred)	(current->fsuid)
-#define current_fsgid(cred)	(current->fsgid)
 #define current_test_flags(f)	(current->flags & (f))
 #define current_set_flags_nested(sp, f)		\
 		(*(sp) = current->flags, current->flags |= (f))
@@ -180,7 +178,7 @@
 #define xfs_sort(a,n,s,fn)	sort(a,n,s,fn,NULL)
 #define xfs_stack_trace()	dump_stack()
 #define xfs_itruncate_data(ip, off)	\
-	(-vmtruncate(vn_to_inode(XFS_ITOV(ip)), (off)))
+	(-vmtruncate(VFS_I(ip), (off)))
 
 
 /* Move the kernel do_div definition off to one side */
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 82333b3e118e..1957e5357d04 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -137,7 +137,7 @@ xfs_iozero(
 	struct address_space	*mapping;
 	int			status;
 
-	mapping = ip->i_vnode->i_mapping;
+	mapping = VFS_I(ip)->i_mapping;
 	do {
 		unsigned offset, bytes;
 		void *fsdata;
@@ -674,9 +674,7 @@ start:
 	 */
 	if (likely(!(ioflags & IO_INVIS) &&
 		   !mnt_want_write(file->f_path.mnt))) {
-		file_update_time(file);
-		xfs_ichgtime_fast(xip, inode,
-				  XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+		xfs_ichgtime(xip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 		mnt_drop_write(file->f_path.mnt);
 	}
 
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index 30ae96397e31..73c65f19e549 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -581,118 +581,6 @@ xfs_max_file_offset(
 	return (((__uint64_t)pagefactor) << bitshift) - 1;
 }
 
-STATIC_INLINE void
-xfs_set_inodeops(
-	struct inode		*inode)
-{
-	switch (inode->i_mode & S_IFMT) {
-	case S_IFREG:
-		inode->i_op = &xfs_inode_operations;
-		inode->i_fop = &xfs_file_operations;
-		inode->i_mapping->a_ops = &xfs_address_space_operations;
-		break;
-	case S_IFDIR:
-		if (xfs_sb_version_hasasciici(&XFS_M(inode->i_sb)->m_sb))
-			inode->i_op = &xfs_dir_ci_inode_operations;
-		else
-			inode->i_op = &xfs_dir_inode_operations;
-		inode->i_fop = &xfs_dir_file_operations;
-		break;
-	case S_IFLNK:
-		inode->i_op = &xfs_symlink_inode_operations;
-		if (!(XFS_I(inode)->i_df.if_flags & XFS_IFINLINE))
-			inode->i_mapping->a_ops = &xfs_address_space_operations;
-		break;
-	default:
-		inode->i_op = &xfs_inode_operations;
-		init_special_inode(inode, inode->i_mode, inode->i_rdev);
-		break;
-	}
-}
-
-STATIC_INLINE void
-xfs_revalidate_inode(
-	xfs_mount_t		*mp,
-	bhv_vnode_t		*vp,
-	xfs_inode_t		*ip)
-{
-	struct inode		*inode = vn_to_inode(vp);
-
-	inode->i_mode	= ip->i_d.di_mode;
-	inode->i_nlink	= ip->i_d.di_nlink;
-	inode->i_uid	= ip->i_d.di_uid;
-	inode->i_gid	= ip->i_d.di_gid;
-
-	switch (inode->i_mode & S_IFMT) {
-	case S_IFBLK:
-	case S_IFCHR:
-		inode->i_rdev =
-			MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
-			      sysv_minor(ip->i_df.if_u2.if_rdev));
-		break;
-	default:
-		inode->i_rdev = 0;
-		break;
-	}
-
-	inode->i_generation = ip->i_d.di_gen;
-	i_size_write(inode, ip->i_d.di_size);
-	inode->i_atime.tv_sec	= ip->i_d.di_atime.t_sec;
-	inode->i_atime.tv_nsec	= ip->i_d.di_atime.t_nsec;
-	inode->i_mtime.tv_sec	= ip->i_d.di_mtime.t_sec;
-	inode->i_mtime.tv_nsec	= ip->i_d.di_mtime.t_nsec;
-	inode->i_ctime.tv_sec	= ip->i_d.di_ctime.t_sec;
-	inode->i_ctime.tv_nsec	= ip->i_d.di_ctime.t_nsec;
-	if (ip->i_d.di_flags & XFS_DIFLAG_IMMUTABLE)
-		inode->i_flags |= S_IMMUTABLE;
-	else
-		inode->i_flags &= ~S_IMMUTABLE;
-	if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
-		inode->i_flags |= S_APPEND;
-	else
-		inode->i_flags &= ~S_APPEND;
-	if (ip->i_d.di_flags & XFS_DIFLAG_SYNC)
-		inode->i_flags |= S_SYNC;
-	else
-		inode->i_flags &= ~S_SYNC;
-	if (ip->i_d.di_flags & XFS_DIFLAG_NOATIME)
-		inode->i_flags |= S_NOATIME;
-	else
-		inode->i_flags &= ~S_NOATIME;
-	xfs_iflags_clear(ip, XFS_IMODIFIED);
-}
-
-void
-xfs_initialize_vnode(
-	struct xfs_mount	*mp,
-	bhv_vnode_t		*vp,
-	struct xfs_inode	*ip)
-{
-	struct inode		*inode = vn_to_inode(vp);
-
-	if (!ip->i_vnode) {
-		ip->i_vnode = vp;
-		inode->i_private = ip;
-	}
-
-	/*
-	 * We need to set the ops vectors, and unlock the inode, but if
-	 * we have been called during the new inode create process, it is
-	 * too early to fill in the Linux inode.  We will get called a
-	 * second time once the inode is properly set up, and then we can
-	 * finish our work.
-	 */
-	if (ip->i_d.di_mode != 0 && (inode->i_state & I_NEW)) {
-		xfs_revalidate_inode(mp, vp, ip);
-		xfs_set_inodeops(inode);
-
-		xfs_iflags_clear(ip, XFS_INEW);
-		barrier();
-
-		unlock_new_inode(inode);
-	}
-}
-
 int
 xfs_blkdev_get(
 	xfs_mount_t		*mp,
@@ -982,26 +870,21 @@ STATIC struct inode *
 xfs_fs_alloc_inode(
 	struct super_block	*sb)
 {
-	bhv_vnode_t		*vp;
-
-	vp = kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
-	if (unlikely(!vp))
-		return NULL;
-	return vn_to_inode(vp);
+	return kmem_zone_alloc(xfs_vnode_zone, KM_SLEEP);
 }
 
 STATIC void
 xfs_fs_destroy_inode(
 	struct inode		*inode)
 {
-	kmem_zone_free(xfs_vnode_zone, vn_from_inode(inode));
+	kmem_zone_free(xfs_vnode_zone, inode);
 }
 
 STATIC void
 xfs_fs_inode_init_once(
 	void			*vnode)
 {
-	inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
+	inode_init_once((struct inode *)vnode);
 }
 
 /*
@@ -1106,7 +989,7 @@ void
 xfs_flush_inode(
 	xfs_inode_t	*ip)
 {
-	struct inode	*inode = ip->i_vnode;
+	struct inode	*inode = VFS_I(ip);
 
 	igrab(inode);
 	xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
@@ -1131,7 +1014,7 @@ void
 xfs_flush_device(
 	xfs_inode_t	*ip)
 {
-	struct inode	*inode = vn_to_inode(XFS_ITOV(ip));
+	struct inode	*inode = VFS_I(ip);
 
 	igrab(inode);
 	xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work);
@@ -1201,6 +1084,15 @@ xfssyncd(
 }
 
 STATIC void
+xfs_free_fsname(
+	struct xfs_mount	*mp)
+{
+	kfree(mp->m_fsname);
+	kfree(mp->m_rtname);
+	kfree(mp->m_logname);
+}
+
+STATIC void
 xfs_fs_put_super(
 	struct super_block	*sb)
 {
@@ -1239,8 +1131,6 @@ xfs_fs_put_super(
 	error = xfs_unmount_flush(mp, 0);
 	WARN_ON(error);
 
-	IRELE(rip);
-
 	/*
 	 * If we're forcing a shutdown, typically because of a media error,
 	 * we want to make sure we invalidate dirty pages that belong to
@@ -1257,10 +1147,12 @@ xfs_fs_put_super(
 	}
 
 	xfs_unmountfs(mp);
+	xfs_freesb(mp);
 	xfs_icsb_destroy_counters(mp);
 	xfs_close_devices(mp);
 	xfs_qmops_put(mp);
 	xfs_dmops_put(mp);
+	xfs_free_fsname(mp);
 	kfree(mp);
 }
 
@@ -1517,6 +1409,8 @@ xfs_start_flags(
 	struct xfs_mount_args	*ap,
 	struct xfs_mount	*mp)
 {
+	int			error;
+
 	/* Values are in BBs */
 	if ((ap->flags & XFSMNT_NOALIGN) != XFSMNT_NOALIGN) {
 		/*
@@ -1549,17 +1443,27 @@ xfs_start_flags(
 			ap->logbufsize);
 		return XFS_ERROR(EINVAL);
 	}
+
+	error = ENOMEM;
+
 	mp->m_logbsize = ap->logbufsize;
 	mp->m_fsname_len = strlen(ap->fsname) + 1;
-	mp->m_fsname = kmem_alloc(mp->m_fsname_len, KM_SLEEP);
-	strcpy(mp->m_fsname, ap->fsname);
+
+	mp->m_fsname = kstrdup(ap->fsname, GFP_KERNEL);
+	if (!mp->m_fsname)
+		goto out;
+
 	if (ap->rtname[0]) {
-		mp->m_rtname = kmem_alloc(strlen(ap->rtname) + 1, KM_SLEEP);
-		strcpy(mp->m_rtname, ap->rtname);
+		mp->m_rtname = kstrdup(ap->rtname, GFP_KERNEL);
+		if (!mp->m_rtname)
+			goto out_free_fsname;
+
 	}
+
 	if (ap->logname[0]) {
-		mp->m_logname = kmem_alloc(strlen(ap->logname) + 1, KM_SLEEP);
-		strcpy(mp->m_logname, ap->logname);
+		mp->m_logname = kstrdup(ap->logname, GFP_KERNEL);
+		if (!mp->m_logname)
+			goto out_free_rtname;
 	}
 
 	if (ap->flags & XFSMNT_WSYNC)
@@ -1632,6 +1536,14 @@ xfs_start_flags(
 	if (ap->flags & XFSMNT_DMAPI)
 		mp->m_flags |= XFS_MOUNT_DMAPI;
 	return 0;
+
+
+ out_free_rtname:
+	kfree(mp->m_rtname);
+ out_free_fsname:
+	kfree(mp->m_fsname);
+ out:
+	return error;
 }
 
 /*
@@ -1792,10 +1704,10 @@ xfs_fs_fill_super(
 	 */
 	error = xfs_start_flags(args, mp);
 	if (error)
-		goto out_destroy_counters;
+		goto out_free_fsname;
 	error = xfs_readsb(mp, flags);
 	if (error)
-		goto out_destroy_counters;
+		goto out_free_fsname;
 	error = xfs_finish_flags(args, mp);
 	if (error)
 		goto out_free_sb;
@@ -1811,7 +1723,7 @@ xfs_fs_fill_super(
 	if (error)
 		goto out_free_sb;
 
-	error = xfs_mountfs(mp, flags);
+	error = xfs_mountfs(mp);
 	if (error)
 		goto out_filestream_unmount;
 
@@ -1825,7 +1737,7 @@ xfs_fs_fill_super(
 	sb->s_time_gran = 1;
 	set_posix_acl_flag(sb);
 
-	root = igrab(mp->m_rootip->i_vnode);
+	root = igrab(VFS_I(mp->m_rootip));
 	if (!root) {
 		error = ENOENT;
 		goto fail_unmount;
@@ -1857,7 +1769,8 @@ xfs_fs_fill_super(
 	xfs_filestream_unmount(mp);
  out_free_sb:
 	xfs_freesb(mp);
- out_destroy_counters:
+ out_free_fsname:
+	xfs_free_fsname(mp);
 	xfs_icsb_destroy_counters(mp);
 	xfs_close_devices(mp);
  out_put_qmops:
@@ -1890,10 +1803,8 @@ xfs_fs_fill_super(
 	error = xfs_unmount_flush(mp, 0);
 	WARN_ON(error);
 
-	IRELE(mp->m_rootip);
-
 	xfs_unmountfs(mp);
-	goto out_destroy_counters;
+	goto out_free_sb;
 }
 
 STATIC int
@@ -2014,7 +1925,7 @@ xfs_free_trace_bufs(void)
 STATIC int __init
 xfs_init_zones(void)
 {
-	xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
+	xfs_vnode_zone = kmem_zone_init_flags(sizeof(struct inode), "xfs_vnode",
 					KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
 					KM_ZONE_SPREAD,
 					xfs_fs_inode_init_once);
diff --git a/fs/xfs/linux-2.6/xfs_super.h b/fs/xfs/linux-2.6/xfs_super.h
index b7d13da01bd6..fe2ef4e6a0f9 100644
--- a/fs/xfs/linux-2.6/xfs_super.h
+++ b/fs/xfs/linux-2.6/xfs_super.h
@@ -101,9 +101,6 @@ struct block_device;
 
 extern __uint64_t xfs_max_file_offset(unsigned int);
 
-extern void xfs_initialize_vnode(struct xfs_mount *mp, bhv_vnode_t *vp,
-		struct xfs_inode *ip);
-
 extern void xfs_flush_inode(struct xfs_inode *);
 extern void xfs_flush_device(struct xfs_inode *);
 
diff --git a/fs/xfs/linux-2.6/xfs_vnode.c b/fs/xfs/linux-2.6/xfs_vnode.c
index 25488b6d9881..b52528bbbfff 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.c
+++ b/fs/xfs/linux-2.6/xfs_vnode.c
@@ -33,7 +33,7 @@
 
 
 /*
- * Dedicated vnode inactive/reclaim sync semaphores.
+ * Dedicated vnode inactive/reclaim sync wait queues.
  * Prime number of hash buckets since address is used as the key.
  */
 #define NVSYNC                  37
@@ -82,24 +82,6 @@ vn_ioerror(
 		xfs_do_force_shutdown(ip->i_mount, SHUTDOWN_DEVICE_REQ, f, l);
 }
 
-
-/*
- * Add a reference to a referenced vnode.
- */
-bhv_vnode_t *
-vn_hold(
-	bhv_vnode_t	*vp)
-{
-	struct inode	*inode;
-
-	XFS_STATS_INC(vn_hold);
-
-	inode = igrab(vn_to_inode(vp));
-	ASSERT(inode);
-
-	return vp;
-}
-
 #ifdef	XFS_INODE_TRACE
 
 /*
@@ -108,7 +90,7 @@ vn_hold(
  */
 static inline int xfs_icount(struct xfs_inode *ip)
 {
-	bhv_vnode_t *vp = XFS_ITOV_NULL(ip);
+	struct inode *vp = VFS_I(ip);
 
 	if (vp)
 		return vn_count(vp);
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 41ca2cec5d31..683ce16210ff 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -22,20 +22,6 @@ struct file;
 struct xfs_iomap;
 struct attrlist_cursor_kern;
 
-typedef struct inode	bhv_vnode_t;
-
-/*
- * Vnode to Linux inode mapping.
- */
-static inline bhv_vnode_t *vn_from_inode(struct inode *inode)
-{
-	return inode;
-}
-static inline struct inode *vn_to_inode(bhv_vnode_t *vnode)
-{
-	return vnode;
-}
-
 /*
  * Return values for xfs_inactive.  A return value of
  * VN_INACTIVE_NOCACHE implies that the file system behavior
@@ -76,57 +62,52 @@ extern void	vn_iowait(struct xfs_inode *ip);
 extern void	vn_iowake(struct xfs_inode *ip);
 extern void	vn_ioerror(struct xfs_inode *ip, int error, char *f, int l);
 
-static inline int vn_count(bhv_vnode_t *vp)
+static inline int vn_count(struct inode *vp)
 {
-	return atomic_read(&vn_to_inode(vp)->i_count);
+	return atomic_read(&vp->i_count);
 }
 
-/*
- * Vnode reference counting functions (and macros for compatibility).
- */
-extern bhv_vnode_t	*vn_hold(bhv_vnode_t *);
+#define IHOLD(ip) \
+do { \
+	ASSERT(atomic_read(&VFS_I(ip)->i_count) > 0) ; \
+	atomic_inc(&(VFS_I(ip)->i_count)); \
+	xfs_itrace_hold((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
+} while (0)
 
-#if defined(XFS_INODE_TRACE)
-#define VN_HOLD(vp)		\
-	((void)vn_hold(vp),	\
-	  xfs_itrace_hold(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address))
-#define VN_RELE(vp)		\
-	  (xfs_itrace_rele(xfs_vtoi(vp), __FILE__, __LINE__, (inst_t *)__return_address), \
-	   iput(vn_to_inode(vp)))
-#else
-#define VN_HOLD(vp)		((void)vn_hold(vp))
-#define VN_RELE(vp)		(iput(vn_to_inode(vp)))
-#endif
+#define IRELE(ip) \
+do { \
+	xfs_itrace_rele((ip), __FILE__, __LINE__, (inst_t *)__return_address); \
+	iput(VFS_I(ip)); \
+} while (0)
 
-static inline bhv_vnode_t *vn_grab(bhv_vnode_t *vp)
+static inline struct inode *vn_grab(struct inode *vp)
 {
-	struct inode *inode = igrab(vn_to_inode(vp));
-	return inode ? vn_from_inode(inode) : NULL;
+	return igrab(vp);
 }
 
 /*
  * Dealing with bad inodes
  */
-static inline int VN_BAD(bhv_vnode_t *vp)
+static inline int VN_BAD(struct inode *vp)
 {
-	return is_bad_inode(vn_to_inode(vp));
+	return is_bad_inode(vp);
 }
 
 /*
  * Extracting atime values in various formats
  */
-static inline void vn_atime_to_bstime(bhv_vnode_t *vp, xfs_bstime_t *bs_atime)
+static inline void vn_atime_to_bstime(struct inode *vp, xfs_bstime_t *bs_atime)
 {
 	bs_atime->tv_sec = vp->i_atime.tv_sec;
 	bs_atime->tv_nsec = vp->i_atime.tv_nsec;
 }
 
-static inline void vn_atime_to_timespec(bhv_vnode_t *vp, struct timespec *ts)
+static inline void vn_atime_to_timespec(struct inode *vp, struct timespec *ts)
 {
 	*ts = vp->i_atime;
 }
 
-static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt)
+static inline void vn_atime_to_time_t(struct inode *vp, time_t *tt)
 {
 	*tt = vp->i_atime.tv_sec;
 }
@@ -134,9 +115,9 @@ static inline void vn_atime_to_time_t(bhv_vnode_t *vp, time_t *tt)
 /*
  * Some useful predicates.
  */
-#define VN_MAPPED(vp)	mapping_mapped(vn_to_inode(vp)->i_mapping)
-#define VN_CACHED(vp)	(vn_to_inode(vp)->i_mapping->nrpages)
-#define VN_DIRTY(vp)	mapping_tagged(vn_to_inode(vp)->i_mapping, \
+#define VN_MAPPED(vp)	mapping_mapped(vp->i_mapping)
+#define VN_CACHED(vp)	(vp->i_mapping->nrpages)
+#define VN_DIRTY(vp)	mapping_tagged(vp->i_mapping, \
 					PAGECACHE_TAG_DIRTY)
 
 
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index fc9f3fb39b7b..f2705f2fd43c 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -101,11 +101,18 @@ xfs_qm_dqinit(
 	if (brandnewdquot) {
 		dqp->dq_flnext = dqp->dq_flprev = dqp;
 		mutex_init(&dqp->q_qlock);
-		initnsema(&dqp->q_flock, 1, "fdq");
 		sv_init(&dqp->q_pinwait, SV_DEFAULT, "pdq");
 
+		/*
+		 * Because we want to use a counting completion, complete
+		 * the flush completion once to allow a single access to
+		 * the flush completion without blocking.
+		 */
+		init_completion(&dqp->q_flush);
+		complete(&dqp->q_flush);
+
 #ifdef XFS_DQUOT_TRACE
-		dqp->q_trace = ktrace_alloc(DQUOT_TRACE_SIZE, KM_SLEEP);
+		dqp->q_trace = ktrace_alloc(DQUOT_TRACE_SIZE, KM_NOFS);
 		xfs_dqtrace_entry(dqp, "DQINIT");
 #endif
 	} else {
@@ -150,7 +157,6 @@ xfs_qm_dqdestroy(
 	ASSERT(! XFS_DQ_IS_ON_FREELIST(dqp));
 
 	mutex_destroy(&dqp->q_qlock);
-	freesema(&dqp->q_flock);
 	sv_destroy(&dqp->q_pinwait);
 
 #ifdef XFS_DQUOT_TRACE
@@ -431,7 +437,7 @@ xfs_qm_dqalloc(
 	 * when it unlocks the inode. Since we want to keep the quota
 	 * inode around, we bump the vnode ref count now.
 	 */
-	VN_HOLD(XFS_ITOV(quotip));
+	IHOLD(quotip);
 
 	xfs_trans_ijoin(tp, quotip, XFS_ILOCK_EXCL);
 	nmaps = 1;
@@ -1211,7 +1217,7 @@ xfs_qm_dqflush(
 	int			error;
 
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
-	ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
+	ASSERT(!completion_done(&dqp->q_flush));
 	xfs_dqtrace_entry(dqp, "DQFLUSH");
 
 	/*
@@ -1348,34 +1354,18 @@ xfs_qm_dqflush_done(
 	xfs_dqfunlock(dqp);
 }
 
-
-int
-xfs_qm_dqflock_nowait(
-	xfs_dquot_t *dqp)
-{
-	int locked;
-
-	locked = cpsema(&((dqp)->q_flock));
-
-	/* XXX ifdef these out */
-	if (locked)
-		(dqp)->dq_flags |= XFS_DQ_FLOCKED;
-	return (locked);
-}
-
-
 int
 xfs_qm_dqlock_nowait(
 	xfs_dquot_t *dqp)
 {
-	return (mutex_trylock(&((dqp)->q_qlock)));
+	return mutex_trylock(&dqp->q_qlock);
 }
 
 void
 xfs_dqlock(
 	xfs_dquot_t *dqp)
 {
-	mutex_lock(&(dqp->q_qlock));
+	mutex_lock(&dqp->q_qlock);
 }
 
 void
@@ -1468,7 +1458,7 @@ xfs_qm_dqpurge(
 	 * if we're turning off quotas. Basically, we need this flush
 	 * lock, and are willing to block on it.
 	 */
-	if (! xfs_qm_dqflock_nowait(dqp)) {
+	if (!xfs_dqflock_nowait(dqp)) {
 		/*
 		 * Block on the flush lock after nudging dquot buffer,
 		 * if it is incore.
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index f7393bba4e95..8958d0faf8d3 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -82,7 +82,7 @@ typedef struct xfs_dquot {
 	xfs_qcnt_t	 q_res_icount;	/* total inos allocd+reserved */
 	xfs_qcnt_t	 q_res_rtbcount;/* total realtime blks used+reserved */
 	mutex_t		 q_qlock;	/* quota lock */
-	sema_t		 q_flock;	/* flush lock */
+	struct completion q_flush;	/* flush completion queue */
 	uint		 q_pincount;	/* pin count for this dquot */
 	sv_t		 q_pinwait;	/* sync var for pinning */
 #ifdef XFS_DQUOT_TRACE
@@ -113,17 +113,25 @@ XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
 
 
 /*
- * The following three routines simply manage the q_flock
- * semaphore embedded in the dquot.  This semaphore synchronizes
- * processes attempting to flush the in-core dquot back to disk.
+ * Manage the q_flush completion queue embedded in the dquot.  This completion
+ * queue synchronizes processes attempting to flush the in-core dquot back to
+ * disk.
  */
-#define xfs_dqflock(dqp)	 { psema(&((dqp)->q_flock), PINOD | PRECALC);\
-				   (dqp)->dq_flags |= XFS_DQ_FLOCKED; }
-#define xfs_dqfunlock(dqp)	 { ASSERT(issemalocked(&((dqp)->q_flock))); \
-				   vsema(&((dqp)->q_flock)); \
-				   (dqp)->dq_flags &= ~(XFS_DQ_FLOCKED); }
+static inline void xfs_dqflock(xfs_dquot_t *dqp)
+{
+	wait_for_completion(&dqp->q_flush);
+}
+
+static inline int xfs_dqflock_nowait(xfs_dquot_t *dqp)
+{
+	return try_wait_for_completion(&dqp->q_flush);
+}
+
+static inline void xfs_dqfunlock(xfs_dquot_t *dqp)
+{
+	complete(&dqp->q_flush);
+}
 
-#define XFS_DQ_IS_FLUSH_LOCKED(dqp) (issemalocked(&((dqp)->q_flock)))
 #define XFS_DQ_IS_ON_FREELIST(dqp)  ((dqp)->dq_flnext != (dqp))
 #define XFS_DQ_IS_DIRTY(dqp)	((dqp)->dq_flags & XFS_DQ_DIRTY)
 #define XFS_QM_ISUDQ(dqp)	((dqp)->dq_flags & XFS_DQ_USER)
@@ -167,7 +175,6 @@ extern int		xfs_qm_dqflush(xfs_dquot_t *, uint);
 extern int		xfs_qm_dqpurge(xfs_dquot_t *);
 extern void		xfs_qm_dqunpin_wait(xfs_dquot_t *);
 extern int		xfs_qm_dqlock_nowait(xfs_dquot_t *);
-extern int		xfs_qm_dqflock_nowait(xfs_dquot_t *);
 extern void		xfs_qm_dqflock_pushbuf_wait(xfs_dquot_t *dqp);
 extern void		xfs_qm_adjust_dqtimers(xfs_mount_t *,
 					xfs_disk_dquot_t *);
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index 08d2fc89e6a1..f028644caa5e 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -151,7 +151,7 @@ xfs_qm_dquot_logitem_push(
 	dqp = logitem->qli_dquot;
 
 	ASSERT(XFS_DQ_IS_LOCKED(dqp));
-	ASSERT(XFS_DQ_IS_FLUSH_LOCKED(dqp));
+	ASSERT(!completion_done(&dqp->q_flush));
 
 	/*
 	 * Since we were able to lock the dquot's flush lock and
@@ -245,7 +245,7 @@ xfs_qm_dquot_logitem_pushbuf(
 	 * inode flush completed and the inode was taken off the AIL.
 	 * So, just get out.
 	 */
-	if (!issemalocked(&(dqp->q_flock))  ||
+	if (completion_done(&dqp->q_flush)  ||
 	    ((qip->qli_item.li_flags & XFS_LI_IN_AIL) == 0)) {
 		qip->qli_pushbuf_flag = 0;
 		xfs_dqunlock(dqp);
@@ -258,7 +258,7 @@ xfs_qm_dquot_logitem_pushbuf(
 	if (bp != NULL) {
 		if (XFS_BUF_ISDELAYWRITE(bp)) {
 			dopush = ((qip->qli_item.li_flags & XFS_LI_IN_AIL) &&
-				  issemalocked(&(dqp->q_flock)));
+				  !completion_done(&dqp->q_flush));
 			qip->qli_pushbuf_flag = 0;
 			xfs_dqunlock(dqp);
 
@@ -317,7 +317,7 @@ xfs_qm_dquot_logitem_trylock(
 		return (XFS_ITEM_LOCKED);
 
 	retval = XFS_ITEM_SUCCESS;
-	if (! xfs_qm_dqflock_nowait(dqp)) {
+	if (!xfs_dqflock_nowait(dqp)) {
 		/*
 		 * The dquot is already being flushed.	It may have been
 		 * flushed delayed write, however, and we don't want to
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index 021934a3d456..df0ffef9775a 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -310,8 +310,7 @@ xfs_qm_unmount_quotadestroy(
  */
 void
 xfs_qm_mount_quotas(
-	xfs_mount_t	*mp,
-	int		mfsi_flags)
+	xfs_mount_t	*mp)
 {
 	int		error = 0;
 	uint		sbf;
@@ -346,8 +345,7 @@ xfs_qm_mount_quotas(
 	/*
 	 * If any of the quotas are not consistent, do a quotacheck.
 	 */
-	if (XFS_QM_NEED_QUOTACHECK(mp) &&
-	    !(mfsi_flags & XFS_MFSI_NO_QUOTACHECK)) {
+	if (XFS_QM_NEED_QUOTACHECK(mp)) {
 		error = xfs_qm_quotacheck(mp);
 		if (error) {
 			/* Quotacheck failed and disabled quotas. */
@@ -484,7 +482,7 @@ again:
 		xfs_dqtrace_entry(dqp, "FLUSHALL: DQDIRTY");
 		/* XXX a sentinel would be better */
 		recl = XFS_QI_MPLRECLAIMS(mp);
-		if (! xfs_qm_dqflock_nowait(dqp)) {
+		if (!xfs_dqflock_nowait(dqp)) {
 			/*
 			 * If we can't grab the flush lock then check
 			 * to see if the dquot has been flushed delayed
@@ -1062,7 +1060,7 @@ xfs_qm_sync(
 
 		/* XXX a sentinel would be better */
 		recl = XFS_QI_MPLRECLAIMS(mp);
-		if (! xfs_qm_dqflock_nowait(dqp)) {
+		if (!xfs_dqflock_nowait(dqp)) {
 			if (nowait) {
 				xfs_dqunlock(dqp);
 				continue;
@@ -2079,7 +2077,7 @@ xfs_qm_shake_freelist(
 		 * Try to grab the flush lock. If this dquot is in the process of
 		 * getting flushed to disk, we don't want to reclaim it.
 		 */
-		if (! xfs_qm_dqflock_nowait(dqp)) {
+		if (!xfs_dqflock_nowait(dqp)) {
 			xfs_dqunlock(dqp);
 			dqp = dqp->dq_flnext;
 			continue;
@@ -2257,7 +2255,7 @@ xfs_qm_dqreclaim_one(void)
 		 * Try to grab the flush lock. If this dquot is in the process of
 		 * getting flushed to disk, we don't want to reclaim it.
 		 */
-		if (! xfs_qm_dqflock_nowait(dqp)) {
+		if (!xfs_dqflock_nowait(dqp)) {
 			xfs_dqunlock(dqp);
 			continue;
 		}
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index cd2300e374af..44f25349e478 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -165,7 +165,7 @@ typedef struct xfs_dquot_acct {
 #define XFS_QM_RELE(xqm)	((xqm)->qm_nrefs--)
 
 extern void		xfs_qm_destroy_quotainfo(xfs_mount_t *);
-extern void		xfs_qm_mount_quotas(xfs_mount_t *, int);
+extern void		xfs_qm_mount_quotas(xfs_mount_t *);
 extern int		xfs_qm_quotacheck(xfs_mount_t *);
 extern void		xfs_qm_unmount_quotadestroy(xfs_mount_t *);
 extern int		xfs_qm_unmount_quotas(xfs_mount_t *);
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index f4f6c4c861d7..eea2e60b456b 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -162,7 +162,7 @@ xfs_qm_newmount(
 			 * mounting, and get on with the boring life
 			 * without disk quotas.
 			 */
-			xfs_qm_mount_quotas(mp, 0);
+			xfs_qm_mount_quotas(mp);
 		} else {
 			/*
 			 * Clear the quota flags, but remember them. This
@@ -184,13 +184,12 @@ STATIC int
 xfs_qm_endmount(
 	xfs_mount_t	*mp,
 	uint		needquotamount,
-	uint		quotaflags,
-	int		mfsi_flags)
+	uint		quotaflags)
 {
 	if (needquotamount) {
 		ASSERT(mp->m_qflags == 0);
 		mp->m_qflags = quotaflags;
-		xfs_qm_mount_quotas(mp, mfsi_flags);
+		xfs_qm_mount_quotas(mp);
 	}
 
 #if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index adfb8723f65a..1a3b803dfa55 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -1034,7 +1034,7 @@ xfs_qm_dqrele_all_inodes(
 {
 	xfs_inode_t	*ip, *topino;
 	uint		ireclaims;
-	bhv_vnode_t	*vp;
+	struct inode	*vp;
 	boolean_t	vnode_refd;
 
 	ASSERT(mp->m_quotainfo);
@@ -1059,7 +1059,7 @@ again:
 			ip = ip->i_mnext;
 			continue;
 		}
-		vp = XFS_ITOV_NULL(ip);
+		vp = VFS_I(ip);
 		if (!vp) {
 			ASSERT(ip->i_udquot == NULL);
 			ASSERT(ip->i_gdquot == NULL);
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 3e4648ad9cfc..b2f639a1416f 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -37,15 +37,15 @@
 #include <linux/capability.h>
 #include <linux/posix_acl_xattr.h>
 
-STATIC int	xfs_acl_setmode(bhv_vnode_t *, xfs_acl_t *, int *);
+STATIC int	xfs_acl_setmode(struct inode *, xfs_acl_t *, int *);
 STATIC void     xfs_acl_filter_mode(mode_t, xfs_acl_t *);
 STATIC void	xfs_acl_get_endian(xfs_acl_t *);
 STATIC int	xfs_acl_access(uid_t, gid_t, xfs_acl_t *, mode_t, cred_t *);
 STATIC int	xfs_acl_invalid(xfs_acl_t *);
 STATIC void	xfs_acl_sync_mode(mode_t, xfs_acl_t *);
-STATIC void	xfs_acl_get_attr(bhv_vnode_t *, xfs_acl_t *, int, int, int *);
-STATIC void	xfs_acl_set_attr(bhv_vnode_t *, xfs_acl_t *, int, int *);
-STATIC int	xfs_acl_allow_set(bhv_vnode_t *, int);
+STATIC void	xfs_acl_get_attr(struct inode *, xfs_acl_t *, int, int, int *);
+STATIC void	xfs_acl_set_attr(struct inode *, xfs_acl_t *, int, int *);
+STATIC int	xfs_acl_allow_set(struct inode *, int);
 
 kmem_zone_t *xfs_acl_zone;
 
@@ -55,7 +55,7 @@ kmem_zone_t *xfs_acl_zone;
  */
 int
 xfs_acl_vhasacl_access(
-	bhv_vnode_t	*vp)
+	struct inode	*vp)
 {
 	int		error;
 
@@ -68,7 +68,7 @@ xfs_acl_vhasacl_access(
  */
 int
 xfs_acl_vhasacl_default(
-	bhv_vnode_t	*vp)
+	struct inode	*vp)
 {
 	int		error;
 
@@ -207,7 +207,7 @@ posix_acl_xfs_to_xattr(
 
 int
 xfs_acl_vget(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	void		*acl,
 	size_t		size,
 	int		kind)
@@ -217,7 +217,6 @@ xfs_acl_vget(
 	posix_acl_xattr_header	*ext_acl = acl;
 	int			flags = 0;
 
-	VN_HOLD(vp);
 	if(size) {
 		if (!(_ACL_ALLOC(xfs_acl))) {
 			error = ENOMEM;
@@ -239,11 +238,10 @@ xfs_acl_vget(
 			goto out;
 		}
 		if (kind == _ACL_TYPE_ACCESS)
-			xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, xfs_acl);
+			xfs_acl_sync_mode(XFS_I(vp)->i_d.di_mode, xfs_acl);
 		error = -posix_acl_xfs_to_xattr(xfs_acl, ext_acl, size);
 	}
 out:
-	VN_RELE(vp);
 	if(xfs_acl)
 		_ACL_FREE(xfs_acl);
 	return -error;
@@ -251,28 +249,26 @@ out:
 
 int
 xfs_acl_vremove(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	int		kind)
 {
 	int		error;
 
-	VN_HOLD(vp);
 	error = xfs_acl_allow_set(vp, kind);
 	if (!error) {
-		error = xfs_attr_remove(xfs_vtoi(vp),
+		error = xfs_attr_remove(XFS_I(vp),
 						kind == _ACL_TYPE_DEFAULT?
 						SGI_ACL_DEFAULT: SGI_ACL_FILE,
 						ATTR_ROOT);
 		if (error == ENOATTR)
 			error = 0;	/* 'scool */
 	}
-	VN_RELE(vp);
 	return -error;
 }
 
 int
 xfs_acl_vset(
-	bhv_vnode_t		*vp,
+	struct inode		*vp,
 	void			*acl,
 	size_t			size,
 	int			kind)
@@ -298,7 +294,6 @@ xfs_acl_vset(
 		return 0;
 	}
 
-	VN_HOLD(vp);
 	error = xfs_acl_allow_set(vp, kind);
 
 	/* Incoming ACL exists, set file mode based on its value */
@@ -321,7 +316,6 @@ xfs_acl_vset(
 	}
 
 out:
-	VN_RELE(vp);
 	_ACL_FREE(xfs_acl);
 	return -error;
 }
@@ -363,7 +357,7 @@ xfs_acl_iaccess(
 
 STATIC int
 xfs_acl_allow_set(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	int		kind)
 {
 	if (vp->i_flags & (S_IMMUTABLE|S_APPEND))
@@ -372,7 +366,7 @@ xfs_acl_allow_set(
 		return ENOTDIR;
 	if (vp->i_sb->s_flags & MS_RDONLY)
 		return EROFS;
-	if (xfs_vtoi(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
+	if (XFS_I(vp)->i_d.di_uid != current->fsuid && !capable(CAP_FOWNER))
 		return EPERM;
 	return 0;
 }
@@ -566,7 +560,7 @@ xfs_acl_get_endian(
  */
 STATIC void
 xfs_acl_get_attr(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	xfs_acl_t	*aclp,
 	int		kind,
 	int		flags,
@@ -576,7 +570,7 @@ xfs_acl_get_attr(
 
 	ASSERT((flags & ATTR_KERNOVAL) ? (aclp == NULL) : 1);
 	flags |= ATTR_ROOT;
-	*error = xfs_attr_get(xfs_vtoi(vp),
+	*error = xfs_attr_get(XFS_I(vp),
 					kind == _ACL_TYPE_ACCESS ?
 					SGI_ACL_FILE : SGI_ACL_DEFAULT,
 					(char *)aclp, &len, flags);
@@ -590,7 +584,7 @@ xfs_acl_get_attr(
  */
 STATIC void
 xfs_acl_set_attr(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	xfs_acl_t	*aclp,
 	int		kind,
 	int		*error)
@@ -615,7 +609,7 @@ xfs_acl_set_attr(
 		INT_SET(newace->ae_perm, ARCH_CONVERT, ace->ae_perm);
 	}
 	INT_SET(newacl->acl_cnt, ARCH_CONVERT, aclp->acl_cnt);
-	*error = xfs_attr_set(xfs_vtoi(vp),
+	*error = xfs_attr_set(XFS_I(vp),
 				kind == _ACL_TYPE_ACCESS ?
 				SGI_ACL_FILE: SGI_ACL_DEFAULT,
 				(char *)newacl, len, ATTR_ROOT);
@@ -624,7 +618,7 @@ xfs_acl_set_attr(
 
 int
 xfs_acl_vtoacl(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	xfs_acl_t	*access_acl,
 	xfs_acl_t	*default_acl)
 {
@@ -639,7 +633,7 @@ xfs_acl_vtoacl(
 		if (error)
 			access_acl->acl_cnt = XFS_ACL_NOT_PRESENT;
 		else /* We have a good ACL and the file mode, synchronize. */
-			xfs_acl_sync_mode(xfs_vtoi(vp)->i_d.di_mode, access_acl);
+			xfs_acl_sync_mode(XFS_I(vp)->i_d.di_mode, access_acl);
 	}
 
 	if (default_acl) {
@@ -656,7 +650,7 @@ xfs_acl_vtoacl(
  */
 int
 xfs_acl_inherit(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	mode_t		mode,
 	xfs_acl_t	*pdaclp)
 {
@@ -715,7 +709,7 @@ out_error:
  */
 STATIC int
 xfs_acl_setmode(
-	bhv_vnode_t	*vp,
+	struct inode	*vp,
 	xfs_acl_t	*acl,
 	int		*basicperms)
 {
@@ -734,7 +728,7 @@ xfs_acl_setmode(
 	 * mode.  The m:: bits take precedence over the g:: bits.
 	 */
 	iattr.ia_valid = ATTR_MODE;
-	iattr.ia_mode = xfs_vtoi(vp)->i_d.di_mode;
+	iattr.ia_mode = XFS_I(vp)->i_d.di_mode;
 	iattr.ia_mode &= ~(S_IRWXU|S_IRWXG|S_IRWXO);
 	ap = acl->acl_entry;
 	for (i = 0; i < acl->acl_cnt; ++i) {
@@ -764,7 +758,7 @@ xfs_acl_setmode(
 	if (gap && nomask)
 		iattr.ia_mode |= gap->ae_perm << 3;
 
-	return xfs_setattr(xfs_vtoi(vp), &iattr, 0, sys_cred);
+	return xfs_setattr(XFS_I(vp), &iattr, 0, sys_cred);
 }
 
 /*
diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h
index 323ee94cf831..a4e293b93efa 100644
--- a/fs/xfs/xfs_acl.h
+++ b/fs/xfs/xfs_acl.h
@@ -59,14 +59,14 @@ extern struct kmem_zone *xfs_acl_zone;
 		(zone) = kmem_zone_init(sizeof(xfs_acl_t), (name))
 #define xfs_acl_zone_destroy(zone)	kmem_zone_destroy(zone)
 
-extern int xfs_acl_inherit(bhv_vnode_t *, mode_t mode, xfs_acl_t *);
+extern int xfs_acl_inherit(struct inode *, mode_t mode, xfs_acl_t *);
 extern int xfs_acl_iaccess(struct xfs_inode *, mode_t, cred_t *);
-extern int xfs_acl_vtoacl(bhv_vnode_t *, xfs_acl_t *, xfs_acl_t *);
-extern int xfs_acl_vhasacl_access(bhv_vnode_t *);
-extern int xfs_acl_vhasacl_default(bhv_vnode_t *);
-extern int xfs_acl_vset(bhv_vnode_t *, void *, size_t, int);
-extern int xfs_acl_vget(bhv_vnode_t *, void *, size_t, int);
-extern int xfs_acl_vremove(bhv_vnode_t *, int);
+extern int xfs_acl_vtoacl(struct inode *, xfs_acl_t *, xfs_acl_t *);
+extern int xfs_acl_vhasacl_access(struct inode *);
+extern int xfs_acl_vhasacl_default(struct inode *);
+extern int xfs_acl_vset(struct inode *, void *, size_t, int);
+extern int xfs_acl_vget(struct inode *, void *, size_t, int);
+extern int xfs_acl_vremove(struct inode *, int);
 
 #define _ACL_PERM_INVALID(perm)	((perm) & ~(ACL_READ|ACL_WRITE|ACL_EXECUTE))
 
diff --git a/fs/xfs/xfs_arch.h b/fs/xfs/xfs_arch.h
index f9472a2076d4..0b3b5efe848c 100644
--- a/fs/xfs/xfs_arch.h
+++ b/fs/xfs/xfs_arch.h
@@ -92,16 +92,6 @@
 	((__u8*)(pointer))[1] = (((value)     ) & 0xff); \
     }
 
-/* define generic INT_ macros */
-
-#define INT_GET(reference,arch) \
-    (((arch) == ARCH_NOCONVERT) \
-	? \
-	    (reference) \
-	: \
-	    INT_SWAP((reference),(reference)) \
-    )
-
 /* does not return a value */
 #define INT_SET(reference,arch,valueref) \
     (__builtin_constant_p(valueref) ? \
@@ -112,64 +102,6 @@
 	) \
     )
 
-/* does not return a value */
-#define INT_MOD_EXPR(reference,arch,code) \
-    (((arch) == ARCH_NOCONVERT) \
-	? \
-	    (void)((reference) code) \
-	: \
-	    (void)( \
-		(reference) = INT_GET((reference),arch) , \
-		((reference) code), \
-		INT_SET(reference, arch, reference) \
-	    ) \
-    )
-
-/* does not return a value */
-#define INT_MOD(reference,arch,delta) \
-    (void)( \
-	INT_MOD_EXPR(reference,arch,+=(delta)) \
-    )
-
-/*
- * INT_COPY - copy a value between two locations with the
- *	      _same architecture_ but _potentially different sizes_
- *
- *	    if the types of the two parameters are equal or they are
- *		in native architecture, a simple copy is done
- *
- *	    otherwise, architecture conversions are done
- *
- */
-
-/* does not return a value */
-#define INT_COPY(dst,src,arch) \
-    ( \
-	((sizeof(dst) == sizeof(src)) || ((arch) == ARCH_NOCONVERT)) \
-	    ? \
-		(void)((dst) = (src)) \
-	    : \
-		INT_SET(dst, arch, INT_GET(src, arch)) \
-    )
-
-/*
- * INT_XLATE - copy a value in either direction between two locations
- *	       with different architectures
- *
- *		    dir < 0	- copy from memory to buffer (native to arch)
- *		    dir > 0	- copy from buffer to memory (arch to native)
- */
-
-/* does not return a value */
-#define INT_XLATE(buf,mem,dir,arch) {\
-    ASSERT(dir); \
-    if (dir>0) { \
-	(mem)=INT_GET(buf, arch); \
-    } else { \
-	INT_SET(buf, arch, mem); \
-    } \
-}
-
 /*
  * In directories inode numbers are stored as unaligned arrays of unsigned
  * 8bit integers on disk.
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 78de80e3caa2..f7cdc28aff41 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -194,6 +194,46 @@ xfs_attr_get(
 	return(error);
 }
 
+/*
+ * Calculate how many blocks we need for the new attribute,
+ */
+int
+xfs_attr_calc_size(
+	struct xfs_inode 	*ip,
+	int			namelen,
+	int			valuelen,
+	int			*local)
+{
+	struct xfs_mount 	*mp = ip->i_mount;
+	int			size;
+	int			nblks;
+
+	/*
+	 * Determine space new attribute will use, and if it would be
+	 * "local" or "remote" (note: local != inline).
+	 */
+	size = xfs_attr_leaf_newentsize(namelen, valuelen,
+					mp->m_sb.sb_blocksize, local);
+
+	nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
+	if (*local) {
+		if (size > (mp->m_sb.sb_blocksize >> 1)) {
+			/* Double split possible */
+			nblks *= 2;
+		}
+	} else {
+		/*
+		 * Out of line attribute, cannot double split, but
+		 * make room for the attribute value itself.
+		 */
+		uint	dblocks = XFS_B_TO_FSB(mp, valuelen);
+		nblks += dblocks;
+		nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
+	}
+
+	return nblks;
+}
+
 STATIC int
 xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
 		char *value, int valuelen, int flags)
@@ -202,10 +242,9 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
 	xfs_fsblock_t	firstblock;
 	xfs_bmap_free_t flist;
 	int		error, err2, committed;
-	int		local, size;
-	uint		nblks;
 	xfs_mount_t	*mp = dp->i_mount;
 	int             rsvd = (flags & ATTR_ROOT) != 0;
+	int		local;
 
 	/*
 	 * Attach the dquots to the inode.
@@ -241,30 +280,8 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
 	args.whichfork = XFS_ATTR_FORK;
 	args.op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT;
 
-	/*
-	 * Determine space new attribute will use, and if it would be
-	 * "local" or "remote" (note: local != inline).
-	 */
-	size = xfs_attr_leaf_newentsize(name->len, valuelen,
-					mp->m_sb.sb_blocksize, &local);
-
-	nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
-	if (local) {
-		if (size > (mp->m_sb.sb_blocksize >> 1)) {
-			/* Double split possible */
-			nblks <<= 1;
-		}
-	} else {
-		uint	dblocks = XFS_B_TO_FSB(mp, valuelen);
-		/* Out of line attribute, cannot double split, but make
-		 * room for the attribute value itself.
-		 */
-		nblks += dblocks;
-		nblks += XFS_NEXTENTADD_SPACE_RES(mp, dblocks, XFS_ATTR_FORK);
-	}
-
 	/* Size is now blocks for attribute data */
-	args.total = nblks;
+	args.total = xfs_attr_calc_size(dp, name->len, valuelen, &local);
 
 	/*
 	 * Start our first transaction of the day.
@@ -286,18 +303,17 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
 	if (rsvd)
 		args.trans->t_flags |= XFS_TRANS_RESERVE;
 
-	if ((error = xfs_trans_reserve(args.trans, (uint) nblks,
-				      XFS_ATTRSET_LOG_RES(mp, nblks),
-				      0, XFS_TRANS_PERM_LOG_RES,
-				      XFS_ATTRSET_LOG_COUNT))) {
+	if ((error = xfs_trans_reserve(args.trans, args.total,
+			XFS_ATTRSET_LOG_RES(mp, args.total), 0,
+			XFS_TRANS_PERM_LOG_RES, XFS_ATTRSET_LOG_COUNT))) {
 		xfs_trans_cancel(args.trans, 0);
 		return(error);
 	}
 	xfs_ilock(dp, XFS_ILOCK_EXCL);
 
-	error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, nblks, 0,
-			 rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
-				XFS_QMOPT_RES_REGBLKS);
+	error = XFS_TRANS_RESERVE_QUOTA_NBLKS(mp, args.trans, dp, args.total, 0,
+				rsvd ? XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
+				       XFS_QMOPT_RES_REGBLKS);
 	if (error) {
 		xfs_iunlock(dp, XFS_ILOCK_EXCL);
 		xfs_trans_cancel(args.trans, XFS_TRANS_RELEASE_LOG_RES);
@@ -384,7 +400,9 @@ xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
 		 * Commit the leaf transformation.  We'll need another (linked)
 		 * transaction to add the new attribute to the leaf.
 		 */
-		if ((error = xfs_attr_rolltrans(&args.trans, dp)))
+
+		error = xfs_trans_roll(&args.trans, dp);
+		if (error)
 			goto out;
 
 	}
@@ -964,7 +982,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 		 * Commit the current trans (including the inode) and start
 		 * a new one.
 		 */
-		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+		error = xfs_trans_roll(&args->trans, dp);
+		if (error)
 			return (error);
 
 		/*
@@ -978,7 +997,8 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 	 * Commit the transaction that added the attr name so that
 	 * later routines can manage their own transactions.
 	 */
-	if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+	error = xfs_trans_roll(&args->trans, dp);
+	if (error)
 		return (error);
 
 	/*
@@ -1067,7 +1087,7 @@ xfs_attr_leaf_addname(xfs_da_args_t *args)
 		/*
 		 * Commit the remove and start the next trans in series.
 		 */
-		error = xfs_attr_rolltrans(&args->trans, dp);
+		error = xfs_trans_roll(&args->trans, dp);
 
 	} else if (args->rmtblkno > 0) {
 		/*
@@ -1298,7 +1318,8 @@ restart:
 			 * Commit the node conversion and start the next
 			 * trans in the chain.
 			 */
-			if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+			error = xfs_trans_roll(&args->trans, dp);
+			if (error)
 				goto out;
 
 			goto restart;
@@ -1349,7 +1370,8 @@ restart:
 	 * Commit the leaf addition or btree split and start the next
 	 * trans in the chain.
 	 */
-	if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+	error = xfs_trans_roll(&args->trans, dp);
+	if (error)
 		goto out;
 
 	/*
@@ -1449,7 +1471,8 @@ restart:
 		/*
 		 * Commit and start the next trans in the chain.
 		 */
-		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+		error = xfs_trans_roll(&args->trans, dp);
+		if (error)
 			goto out;
 
 	} else if (args->rmtblkno > 0) {
@@ -1581,7 +1604,8 @@ xfs_attr_node_removename(xfs_da_args_t *args)
 		/*
 		 * Commit the Btree join operation and start a new trans.
 		 */
-		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+		error = xfs_trans_roll(&args->trans, dp);
+		if (error)
 			goto out;
 	}
 
@@ -2082,7 +2106,8 @@ xfs_attr_rmtval_set(xfs_da_args_t *args)
 		/*
 		 * Start the next trans in the chain.
 		 */
-		if ((error = xfs_attr_rolltrans(&args->trans, dp)))
+		error = xfs_trans_roll(&args->trans, dp);
+		if (error)
 			return (error);
 	}
 
@@ -2232,7 +2257,8 @@ xfs_attr_rmtval_remove(xfs_da_args_t *args)
 		/*
 		 * Close out trans and start the next one in the chain.
 		 */
-		if ((error = xfs_attr_rolltrans(&args->trans, args->dp)))
+		error = xfs_trans_roll(&args->trans, args->dp);
+		if (error)
 			return (error);
 	}
 	return(0);
diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h
index 8b2d31c19e4d..fb3b2a68b9b9 100644
--- a/fs/xfs/xfs_attr.h
+++ b/fs/xfs/xfs_attr.h
@@ -129,6 +129,7 @@ typedef struct xfs_attr_list_context {
 /*
  * Overall external interface routines.
  */
+int xfs_attr_calc_size(struct xfs_inode *, int, int, int *);
 int xfs_attr_inactive(struct xfs_inode *dp);
 int xfs_attr_fetch(struct xfs_inode *, struct xfs_name *, char *, int *, int);
 int xfs_attr_rmtval_get(struct xfs_da_args *args);
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 23ef5d7c87e1..79da6b2ea99e 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -2498,9 +2498,7 @@ xfs_attr_leaf_clearflag(xfs_da_args_t *args)
 	/*
 	 * Commit the flag value change and start the next trans in series.
 	 */
-	error = xfs_attr_rolltrans(&args->trans, args->dp);
-
-	return(error);
+	return xfs_trans_roll(&args->trans, args->dp);
 }
 
 /*
@@ -2547,9 +2545,7 @@ xfs_attr_leaf_setflag(xfs_da_args_t *args)
 	/*
 	 * Commit the flag value change and start the next trans in series.
 	 */
-	error = xfs_attr_rolltrans(&args->trans, args->dp);
-
-	return(error);
+	return xfs_trans_roll(&args->trans, args->dp);
 }
 
 /*
@@ -2665,7 +2661,7 @@ xfs_attr_leaf_flipflags(xfs_da_args_t *args)
 	/*
 	 * Commit the flag value change and start the next trans in series.
 	 */
-	error = xfs_attr_rolltrans(&args->trans, args->dp);
+	error = xfs_trans_roll(&args->trans, args->dp);
 
 	return(error);
 }
@@ -2723,7 +2719,7 @@ xfs_attr_root_inactive(xfs_trans_t **trans, xfs_inode_t *dp)
 	/*
 	 * Commit the invalidate and start the next transaction.
 	 */
-	error = xfs_attr_rolltrans(trans, dp);
+	error = xfs_trans_roll(trans, dp);
 
 	return (error);
 }
@@ -2825,7 +2821,8 @@ xfs_attr_node_inactive(xfs_trans_t **trans, xfs_inode_t *dp, xfs_dabuf_t *bp,
 		/*
 		 * Atomically commit the whole invalidate stuff.
 		 */
-		if ((error = xfs_attr_rolltrans(trans, dp)))
+		error = xfs_trans_roll(trans, dp);
+		if (error)
 			return (error);
 	}
 
@@ -2964,7 +2961,8 @@ xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
 			/*
 			 * Roll to next transaction.
 			 */
-			if ((error = xfs_attr_rolltrans(trans, dp)))
+			error = xfs_trans_roll(trans, dp);
+			if (error)
 				return (error);
 		}
 
@@ -2974,60 +2972,3 @@ xfs_attr_leaf_freextent(xfs_trans_t **trans, xfs_inode_t *dp,
 
 	return(0);
 }
-
-
-/*
- * Roll from one trans in the sequence of PERMANENT transactions to the next.
- */
-int
-xfs_attr_rolltrans(xfs_trans_t **transp, xfs_inode_t *dp)
-{
-	xfs_trans_t *trans;
-	unsigned int logres, count;
-	int	error;
-
-	/*
-	 * Ensure that the inode is always logged.
-	 */
-	trans = *transp;
-	xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
-
-	/*
-	 * Copy the critical parameters from one trans to the next.
-	 */
-	logres = trans->t_log_res;
-	count = trans->t_log_count;
-	*transp = xfs_trans_dup(trans);
-
-	/*
-	 * Commit the current transaction.
-	 * If this commit failed, then it'd just unlock those items that
-	 * are not marked ihold. That also means that a filesystem shutdown
-	 * is in progress. The caller takes the responsibility to cancel
-	 * the duplicate transaction that gets returned.
-	 */
-	if ((error = xfs_trans_commit(trans, 0)))
-		return (error);
-
-	trans = *transp;
-
-	/*
-	 * Reserve space in the log for th next transaction.
-	 * This also pushes items in the "AIL", the list of logged items,
-	 * out to disk if they are taking up space at the tail of the log
-	 * that we want to use.  This requires that either nothing be locked
-	 * across this call, or that anything that is locked be logged in
-	 * the prior and the next transactions.
-	 */
-	error = xfs_trans_reserve(trans, 0, logres, 0,
-				  XFS_TRANS_PERM_LOG_RES, count);
-	/*
-	 *  Ensure that the inode is in the new transaction and locked.
-	 */
-	if (!error) {
-		xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
-		xfs_trans_ihold(trans, dp);
-	}
-	return (error);
-
-}
diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h
index 5ecf437b7825..83e9af417ca2 100644
--- a/fs/xfs/xfs_attr_leaf.h
+++ b/fs/xfs/xfs_attr_leaf.h
@@ -274,6 +274,4 @@ int	xfs_attr_leaf_order(struct xfs_dabuf *leaf1_bp,
 				   struct xfs_dabuf *leaf2_bp);
 int	xfs_attr_leaf_newentsize(int namelen, int valuelen, int blocksize,
 					int *local);
-int	xfs_attr_rolltrans(struct xfs_trans **transp, struct xfs_inode *dp);
-
 #endif	/* __XFS_ATTR_LEAF_H__ */
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index fab0b6d5a41b..48228848f5ae 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -25,109 +25,6 @@
  * XFS bit manipulation routines, used in non-realtime code.
  */
 
-#ifndef HAVE_ARCH_HIGHBIT
-/*
- * Index of high bit number in byte, -1 for none set, 0..7 otherwise.
- */
-static const char xfs_highbit[256] = {
-       -1, 0, 1, 1, 2, 2, 2, 2,			/* 00 .. 07 */
-	3, 3, 3, 3, 3, 3, 3, 3,			/* 08 .. 0f */
-	4, 4, 4, 4, 4, 4, 4, 4,			/* 10 .. 17 */
-	4, 4, 4, 4, 4, 4, 4, 4,			/* 18 .. 1f */
-	5, 5, 5, 5, 5, 5, 5, 5,			/* 20 .. 27 */
-	5, 5, 5, 5, 5, 5, 5, 5,			/* 28 .. 2f */
-	5, 5, 5, 5, 5, 5, 5, 5,			/* 30 .. 37 */
-	5, 5, 5, 5, 5, 5, 5, 5,			/* 38 .. 3f */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 40 .. 47 */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 48 .. 4f */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 50 .. 57 */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 58 .. 5f */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 60 .. 67 */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 68 .. 6f */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 70 .. 77 */
-	6, 6, 6, 6, 6, 6, 6, 6,			/* 78 .. 7f */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* 80 .. 87 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* 88 .. 8f */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* 90 .. 97 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* 98 .. 9f */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* a0 .. a7 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* a8 .. af */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* b0 .. b7 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* b8 .. bf */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* c0 .. c7 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* c8 .. cf */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* d0 .. d7 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* d8 .. df */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* e0 .. e7 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* e8 .. ef */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* f0 .. f7 */
-	7, 7, 7, 7, 7, 7, 7, 7,			/* f8 .. ff */
-};
-#endif
-
-/*
- * xfs_highbit32: get high bit set out of 32-bit argument, -1 if none set.
- */
-inline int
-xfs_highbit32(
-	__uint32_t	v)
-{
-#ifdef HAVE_ARCH_HIGHBIT
-	return highbit32(v);
-#else
-	int		i;
-
-	if (v & 0xffff0000)
-		if (v & 0xff000000)
-			i = 24;
-		else
-			i = 16;
-	else if (v & 0x0000ffff)
-		if (v & 0x0000ff00)
-			i = 8;
-		else
-			i = 0;
-	else
-		return -1;
-	return i + xfs_highbit[(v >> i) & 0xff];
-#endif
-}
-
-/*
- * xfs_lowbit64: get low bit set out of 64-bit argument, -1 if none set.
- */
-int
-xfs_lowbit64(
-	__uint64_t	v)
-{
-	__uint32_t	w = (__uint32_t)v;
-	int		n = 0;
-
-	if (w) {	/* lower bits */
-		n = ffs(w);
-	} else {	/* upper bits */
-		w = (__uint32_t)(v >> 32);
-		if (w && (n = ffs(w)))
-			n += 32;
-	}
-	return n - 1;
-}
-
-/*
- * xfs_highbit64: get high bit set out of 64-bit argument, -1 if none set.
- */
-int
-xfs_highbit64(
-	__uint64_t	v)
-{
-	__uint32_t	h = (__uint32_t)(v >> 32);
-
-	if (h)
-		return xfs_highbit32(h) + 32;
-	return xfs_highbit32((__uint32_t)v);
-}
-
-
 /*
  * Return whether bitmap is empty.
  * Size is number of words in the bitmap, which is padded to word boundary
diff --git a/fs/xfs/xfs_bit.h b/fs/xfs/xfs_bit.h
index 082641a9782c..8e0e463dae2d 100644
--- a/fs/xfs/xfs_bit.h
+++ b/fs/xfs/xfs_bit.h
@@ -47,13 +47,39 @@ static inline __uint64_t xfs_mask64lo(int n)
 }
 
 /* Get high bit set out of 32-bit argument, -1 if none set */
-extern int xfs_highbit32(__uint32_t v);
+static inline int xfs_highbit32(__uint32_t v)
+{
+	return fls(v) - 1;
+}
+
+/* Get high bit set out of 64-bit argument, -1 if none set */
+static inline int xfs_highbit64(__uint64_t v)
+{
+	return fls64(v) - 1;
+}
+
+/* Get low bit set out of 32-bit argument, -1 if none set */
+static inline int xfs_lowbit32(__uint32_t v)
+{
+	unsigned long	t = v;
+	return (v) ? find_first_bit(&t, 32) : -1;
+}
 
 /* Get low bit set out of 64-bit argument, -1 if none set */
-extern int xfs_lowbit64(__uint64_t v);
+static inline int xfs_lowbit64(__uint64_t v)
+{
+	__uint32_t	w = (__uint32_t)v;
+	int		n = 0;
 
-/* Get high bit set out of 64-bit argument, -1 if none set */
-extern int xfs_highbit64(__uint64_t);
+	if (w) {	/* lower bits */
+		n = ffs(w);
+	} else {	/* upper bits */
+		w = (__uint32_t)(v >> 32);
+		if (w && (n = ffs(w)))
+		n += 32;
+	}
+	return n - 1;
+}
 
 /* Return whether bitmap is empty (1 == empty) */
 extern int xfs_bitmap_empty(uint *map, uint size);
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 3c4beb3a4326..a1aab9275d5a 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -384,14 +384,14 @@ xfs_bmap_count_tree(
 	int             levelin,
 	int		*count);
 
-STATIC int
+STATIC void
 xfs_bmap_count_leaves(
 	xfs_ifork_t		*ifp,
 	xfs_extnum_t		idx,
 	int			numrecs,
 	int			*count);
 
-STATIC int
+STATIC void
 xfs_bmap_disk_count_leaves(
 	xfs_extnum_t		idx,
 	xfs_bmbt_block_t	*block,
@@ -4000,7 +4000,7 @@ xfs_bmap_add_attrfork(
 		ip->i_d.di_aformat = XFS_DINODE_FMT_EXTENTS;
 	}
 	ASSERT(ip->i_d.di_anextents == 0);
-	VN_HOLD(XFS_ITOV(ip));
+	IHOLD(ip);
 	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 	switch (ip->i_d.di_format) {
@@ -6096,7 +6096,7 @@ xfs_bmap_get_bp(
 		tp = cur->bc_tp;
 		licp = &tp->t_items;
 		while (!bp && licp != NULL) {
-			if (XFS_LIC_ARE_ALL_FREE(licp)) {
+			if (xfs_lic_are_all_free(licp)) {
 				licp = licp->lic_next;
 				continue;
 			}
@@ -6106,11 +6106,11 @@ xfs_bmap_get_bp(
 				xfs_buf_log_item_t	*bip;
 				xfs_buf_t		*lbp;
 
-				if (XFS_LIC_ISFREE(licp, i)) {
+				if (xfs_lic_isfree(licp, i)) {
 					continue;
 				}
 
-				lidp = XFS_LIC_SLOT(licp, i);
+				lidp = xfs_lic_slot(licp, i);
 				lip = lidp->lid_item;
 				if (lip->li_type != XFS_LI_BUF)
 					continue;
@@ -6367,13 +6367,9 @@ xfs_bmap_count_blocks(
 	mp = ip->i_mount;
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	if ( XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ) {
-		if (unlikely(xfs_bmap_count_leaves(ifp, 0,
+		xfs_bmap_count_leaves(ifp, 0,
 			ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t),
-			count) < 0)) {
-			XFS_ERROR_REPORT("xfs_bmap_count_blocks(1)",
-					 XFS_ERRLEVEL_LOW, mp);
-			return XFS_ERROR(EFSCORRUPTED);
-		}
+			count);
 		return 0;
 	}
 
@@ -6454,13 +6450,7 @@ xfs_bmap_count_tree(
 		for (;;) {
 			nextbno = be64_to_cpu(block->bb_rightsib);
 			numrecs = be16_to_cpu(block->bb_numrecs);
-			if (unlikely(xfs_bmap_disk_count_leaves(0,
-					block, numrecs, count) < 0)) {
-				xfs_trans_brelse(tp, bp);
-				XFS_ERROR_REPORT("xfs_bmap_count_tree(2)",
-						 XFS_ERRLEVEL_LOW, mp);
-				return XFS_ERROR(EFSCORRUPTED);
-			}
+			xfs_bmap_disk_count_leaves(0, block, numrecs, count);
 			xfs_trans_brelse(tp, bp);
 			if (nextbno == NULLFSBLOCK)
 				break;
@@ -6478,7 +6468,7 @@ xfs_bmap_count_tree(
 /*
  * Count leaf blocks given a range of extent records.
  */
-STATIC int
+STATIC void
 xfs_bmap_count_leaves(
 	xfs_ifork_t		*ifp,
 	xfs_extnum_t		idx,
@@ -6491,14 +6481,13 @@ xfs_bmap_count_leaves(
 		xfs_bmbt_rec_host_t *frp = xfs_iext_get_ext(ifp, idx + b);
 		*count += xfs_bmbt_get_blockcount(frp);
 	}
-	return 0;
 }
 
 /*
  * Count leaf blocks given a range of extent records originally
  * in btree format.
  */
-STATIC int
+STATIC void
 xfs_bmap_disk_count_leaves(
 	xfs_extnum_t		idx,
 	xfs_bmbt_block_t	*block,
@@ -6512,5 +6501,4 @@ xfs_bmap_disk_count_leaves(
 		frp = XFS_BTREE_REC_ADDR(xfs_bmbt, block, idx + b);
 		*count += xfs_bmbt_disk_get_blockcount(frp);
 	}
-	return 0;
 }
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index aeb87ca69fcc..cc593a84c345 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -46,38 +46,11 @@ kmem_zone_t	*xfs_btree_cur_zone;
 /*
  * Btree magic numbers.
  */
-const __uint32_t xfs_magics[XFS_BTNUM_MAX] =
-{
+const __uint32_t xfs_magics[XFS_BTNUM_MAX] = {
 	XFS_ABTB_MAGIC, XFS_ABTC_MAGIC, XFS_BMAP_MAGIC, XFS_IBT_MAGIC
 };
 
 /*
- * Prototypes for internal routines.
- */
-
-/*
- * Checking routine: return maxrecs for the block.
- */
-STATIC int				/* number of records fitting in block */
-xfs_btree_maxrecs(
-	xfs_btree_cur_t		*cur,	/* btree cursor */
-	xfs_btree_block_t	*block);/* generic btree block pointer */
-
-/*
- * Internal routines.
- */
-
-/*
- * Retrieve the block pointer from the cursor at the given level.
- * This may be a bmap btree root or from a buffer.
- */
-STATIC xfs_btree_block_t *			/* generic btree block pointer */
-xfs_btree_get_block(
-	xfs_btree_cur_t		*cur,	/* btree cursor */
-	int			level,	/* level in btree */
-	struct xfs_buf		**bpp);	/* buffer containing the block */
-
-/*
  * Checking routine: return maxrecs for the block.
  */
 STATIC int				/* number of records fitting in block */
@@ -457,35 +430,6 @@ xfs_btree_dup_cursor(
 }
 
 /*
- * Change the cursor to point to the first record at the given level.
- * Other levels are unaffected.
- */
-int					/* success=1, failure=0 */
-xfs_btree_firstrec(
-	xfs_btree_cur_t		*cur,	/* btree cursor */
-	int			level)	/* level to change */
-{
-	xfs_btree_block_t	*block;	/* generic btree block pointer */
-	xfs_buf_t		*bp;	/* buffer containing block */
-
-	/*
-	 * Get the block pointer for this level.
-	 */
-	block = xfs_btree_get_block(cur, level, &bp);
-	xfs_btree_check_block(cur, block, level, bp);
-	/*
-	 * It's empty, there is no such record.
-	 */
-	if (!block->bb_h.bb_numrecs)
-		return 0;
-	/*
-	 * Set the ptr value to 1, that's the first record/key.
-	 */
-	cur->bc_ptrs[level] = 1;
-	return 1;
-}
-
-/*
  * Retrieve the block pointer from the cursor at the given level.
  * This may be a bmap btree root or from a buffer.
  */
@@ -626,6 +570,13 @@ xfs_btree_init_cursor(
 		cur->bc_private.a.agbp = agbp;
 		cur->bc_private.a.agno = agno;
 		break;
+	case XFS_BTNUM_INO:
+		/*
+		 * Inode allocation btree fields.
+		 */
+		cur->bc_private.a.agbp = agbp;
+		cur->bc_private.a.agno = agno;
+		break;
 	case XFS_BTNUM_BMAP:
 		/*
 		 * Bmap btree fields.
@@ -638,13 +589,6 @@ xfs_btree_init_cursor(
 		cur->bc_private.b.flags = 0;
 		cur->bc_private.b.whichfork = whichfork;
 		break;
-	case XFS_BTNUM_INO:
-		/*
-		 * Inode allocation btree fields.
-		 */
-		cur->bc_private.i.agbp = agbp;
-		cur->bc_private.i.agno = agno;
-		break;
 	default:
 		ASSERT(0);
 	}
@@ -671,6 +615,35 @@ xfs_btree_islastblock(
 }
 
 /*
+ * Change the cursor to point to the first record at the given level.
+ * Other levels are unaffected.
+ */
+int					/* success=1, failure=0 */
+xfs_btree_firstrec(
+	xfs_btree_cur_t		*cur,	/* btree cursor */
+	int			level)	/* level to change */
+{
+	xfs_btree_block_t	*block;	/* generic btree block pointer */
+	xfs_buf_t		*bp;	/* buffer containing block */
+
+	/*
+	 * Get the block pointer for this level.
+	 */
+	block = xfs_btree_get_block(cur, level, &bp);
+	xfs_btree_check_block(cur, block, level, bp);
+	/*
+	 * It's empty, there is no such record.
+	 */
+	if (!block->bb_h.bb_numrecs)
+		return 0;
+	/*
+	 * Set the ptr value to 1, that's the first record/key.
+	 */
+	cur->bc_ptrs[level] = 1;
+	return 1;
+}
+
+/*
  * Change the cursor to point to the last record in the current block
  * at the given level.  Other levels are unaffected.
  */
@@ -890,12 +863,12 @@ xfs_btree_readahead_core(
 	case XFS_BTNUM_INO:
 		i = XFS_BUF_TO_INOBT_BLOCK(cur->bc_bufs[lev]);
 		if ((lr & XFS_BTCUR_LEFTRA) && be32_to_cpu(i->bb_leftsib) != NULLAGBLOCK) {
-			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
 				be32_to_cpu(i->bb_leftsib), 1);
 			rval++;
 		}
 		if ((lr & XFS_BTCUR_RIGHTRA) && be32_to_cpu(i->bb_rightsib) != NULLAGBLOCK) {
-			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.i.agno,
+			xfs_btree_reada_bufs(cur->bc_mp, cur->bc_private.a.agno,
 				be32_to_cpu(i->bb_rightsib), 1);
 			rval++;
 		}
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 7440b78f9cec..1f528a2a3754 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -158,8 +158,8 @@ typedef struct xfs_btree_cur
 	__uint8_t	bc_blocklog;	/* log2(blocksize) of btree blocks */
 	xfs_btnum_t	bc_btnum;	/* identifies which btree type */
 	union {
-		struct {			/* needed for BNO, CNT */
-			struct xfs_buf	*agbp;	/* agf buffer pointer */
+		struct {			/* needed for BNO, CNT, INO */
+			struct xfs_buf	*agbp;	/* agf/agi buffer pointer */
 			xfs_agnumber_t	agno;	/* ag number */
 		} a;
 		struct {			/* needed for BMAP */
@@ -172,10 +172,6 @@ typedef struct xfs_btree_cur
 			char		flags;		/* flags */
 #define	XFS_BTCUR_BPRV_WASDEL	1			/* was delayed */
 		} b;
-		struct {			/* needed for INO */
-			struct xfs_buf	*agbp;	/* agi buffer pointer */
-			xfs_agnumber_t	agno;	/* ag number */
-		} i;
 	}		bc_private;	/* per-btree type data */
 } xfs_btree_cur_t;
 
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index d86ca2c03a70..608c30c3f76b 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -737,7 +737,7 @@ xfs_buf_item_init(
 	bip->bli_format.blf_len = (ushort)BTOBB(XFS_BUF_COUNT(bp));
 	bip->bli_format.blf_map_size = map_size;
 #ifdef XFS_BLI_TRACE
-	bip->bli_trace = ktrace_alloc(XFS_BLI_TRACE_SIZE, KM_SLEEP);
+	bip->bli_trace = ktrace_alloc(XFS_BLI_TRACE_SIZE, KM_NOFS);
 #endif
 
 #ifdef XFS_TRANS_DEBUG
@@ -1056,7 +1056,7 @@ xfs_buf_iodone_callbacks(
 			   anyway. */
 			XFS_BUF_SET_BRELSE_FUNC(bp,xfs_buf_error_relse);
 			XFS_BUF_DONE(bp);
-			XFS_BUF_V_IODONESEMA(bp);
+			XFS_BUF_FINISH_IOWAIT(bp);
 		}
 		return;
 	}
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index 2211e885ef24..760f4c5b5160 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -128,10 +128,8 @@ xfs_swap_extents(
 	xfs_swapext_t	*sxp)
 {
 	xfs_mount_t	*mp;
-	xfs_inode_t	*ips[2];
 	xfs_trans_t	*tp;
 	xfs_bstat_t	*sbp = &sxp->sx_stat;
-	bhv_vnode_t	*vp, *tvp;
 	xfs_ifork_t	*tempifp, *ifp, *tifp;
 	int		ilf_fields, tilf_fields;
 	static uint	lock_flags = XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL;
@@ -150,19 +148,8 @@ xfs_swap_extents(
 	}
 
 	sbp = &sxp->sx_stat;
-	vp = XFS_ITOV(ip);
-	tvp = XFS_ITOV(tip);
-
-	/* Lock in i_ino order */
-	if (ip->i_ino < tip->i_ino) {
-		ips[0] = ip;
-		ips[1] = tip;
-	} else {
-		ips[0] = tip;
-		ips[1] = ip;
-	}
 
-	xfs_lock_inodes(ips, 2, lock_flags);
+	xfs_lock_two_inodes(ip, tip, lock_flags);
 	locked = 1;
 
 	/* Verify that both files have the same format */
@@ -184,7 +171,7 @@ xfs_swap_extents(
 		goto error0;
 	}
 
-	if (VN_CACHED(tvp) != 0) {
+	if (VN_CACHED(VFS_I(tip)) != 0) {
 		xfs_inval_cached_trace(tip, 0, -1, 0, -1);
 		error = xfs_flushinval_pages(tip, 0, -1,
 				FI_REMAPF_LOCKED);
@@ -193,7 +180,7 @@ xfs_swap_extents(
 	}
 
 	/* Verify O_DIRECT for ftmp */
-	if (VN_CACHED(tvp) != 0) {
+	if (VN_CACHED(VFS_I(tip)) != 0) {
 		error = XFS_ERROR(EINVAL);
 		goto error0;
 	}
@@ -237,7 +224,7 @@ xfs_swap_extents(
 	 * vop_read (or write in the case of autogrow) they block on the iolock
 	 * until we have switched the extents.
 	 */
-	if (VN_MAPPED(vp)) {
+	if (VN_MAPPED(VFS_I(ip))) {
 		error = XFS_ERROR(EBUSY);
 		goto error0;
 	}
@@ -265,7 +252,7 @@ xfs_swap_extents(
 		locked = 0;
 		goto error0;
 	}
-	xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
+	xfs_lock_two_inodes(ip, tip, XFS_ILOCK_EXCL);
 
 	/*
 	 * Count the number of extended attribute blocks
@@ -350,15 +337,11 @@ xfs_swap_extents(
 		break;
 	}
 
-	/*
-	 * Increment vnode ref counts since xfs_trans_commit &
-	 * xfs_trans_cancel will both unlock the inodes and
-	 * decrement the associated ref counts.
-	 */
-	VN_HOLD(vp);
-	VN_HOLD(tvp);
 
+	IHOLD(ip);
 	xfs_trans_ijoin(tp, ip, lock_flags);
+
+	IHOLD(tip);
 	xfs_trans_ijoin(tp, tip, lock_flags);
 
 	xfs_trans_log_inode(tp, ip,  ilf_fields);
diff --git a/fs/xfs/xfs_dmapi.h b/fs/xfs/xfs_dmapi.h
index cdc2d3464a1a..2813cdd72375 100644
--- a/fs/xfs/xfs_dmapi.h
+++ b/fs/xfs/xfs_dmapi.h
@@ -18,7 +18,6 @@
 #ifndef __XFS_DMAPI_H__
 #define __XFS_DMAPI_H__
 
-#include <linux/version.h>
 /*	Values used to define the on-disk version of dm_attrname_t. All
  *	on-disk attribute names start with the 8-byte string "SGI_DMI_".
  *
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index f66756cfb5e8..f227ecd1a294 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -58,9 +58,6 @@ xfs_error_trap(int e)
 	}
 	return e;
 }
-#endif
-
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
 
 int	xfs_etest[XFS_NUM_INJECT_ERROR];
 int64_t	xfs_etest_fsid[XFS_NUM_INJECT_ERROR];
@@ -154,7 +151,7 @@ xfs_errortag_clearall(xfs_mount_t *mp, int loud)
 
 	return 0;
 }
-#endif /* DEBUG || INDUCE_IO_ERROR */
+#endif /* DEBUG */
 
 static void
 xfs_fs_vcmn_err(int level, xfs_mount_t *mp, char *fmt, va_list ap)
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h
index d8559d132efa..11543f10b0c6 100644
--- a/fs/xfs/xfs_error.h
+++ b/fs/xfs/xfs_error.h
@@ -125,22 +125,14 @@ extern void xfs_corruption_error(char *tag, int level, struct xfs_mount *mp,
 #define XFS_RANDOM_DIOWRITE_IOERR			(XFS_RANDOM_DEFAULT/10)
 #define	XFS_RANDOM_BMAPIFORMAT				XFS_RANDOM_DEFAULT
 
-#if (defined(DEBUG) || defined(INDUCE_IO_ERROR))
+#ifdef DEBUG
 extern int xfs_error_test(int, int *, char *, int, char *, unsigned long);
 
 #define	XFS_NUM_INJECT_ERROR				10
-
-#ifdef __ANSI_CPP__
-#define XFS_TEST_ERROR(expr, mp, tag, rf)		\
-	((expr) || \
-	 xfs_error_test((tag), (mp)->m_fixedfsid, #expr, __LINE__, __FILE__, \
-			 (rf)))
-#else
 #define XFS_TEST_ERROR(expr, mp, tag, rf)		\
 	((expr) || \
 	 xfs_error_test((tag), (mp)->m_fixedfsid, "expr", __LINE__, __FILE__, \
 			(rf)))
-#endif /* __ANSI_CPP__ */
 
 extern int xfs_errortag_add(int error_tag, xfs_mount_t *mp);
 extern int xfs_errortag_clearall(xfs_mount_t *mp, int loud);
@@ -148,7 +140,7 @@ extern int xfs_errortag_clearall(xfs_mount_t *mp, int loud);
 #define XFS_TEST_ERROR(expr, mp, tag, rf)	(expr)
 #define xfs_errortag_add(tag, mp)		(ENOSYS)
 #define xfs_errortag_clearall(mp, loud)		(ENOSYS)
-#endif /* (DEBUG || INDUCE_IO_ERROR) */
+#endif /* DEBUG */
 
 /*
  * XFS panic tags -- allow a call to xfs_cmn_err() be turned into
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index c38fd14fca29..f3bb75da384e 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -400,7 +400,7 @@ xfs_filestream_init(void)
 	if (!item_zone)
 		return -ENOMEM;
 #ifdef XFS_FILESTREAMS_TRACE
-	xfs_filestreams_trace_buf = ktrace_alloc(XFS_FSTRM_KTRACE_SIZE, KM_SLEEP);
+	xfs_filestreams_trace_buf = ktrace_alloc(XFS_FSTRM_KTRACE_SIZE, KM_NOFS);
 #endif
 	return 0;
 }
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index e5310c90e50f..83502f3edef0 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -181,7 +181,7 @@ xfs_inobt_delrec(
 		 * then we can get rid of this level.
 		 */
 		if (numrecs == 1 && level > 0) {
-			agbp = cur->bc_private.i.agbp;
+			agbp = cur->bc_private.a.agbp;
 			agi = XFS_BUF_TO_AGI(agbp);
 			/*
 			 * pp is still set to the first pointer in the block.
@@ -194,7 +194,7 @@ xfs_inobt_delrec(
 			 * Free the block.
 			 */
 			if ((error = xfs_free_extent(cur->bc_tp,
-				XFS_AGB_TO_FSB(mp, cur->bc_private.i.agno, bno), 1)))
+				XFS_AGB_TO_FSB(mp, cur->bc_private.a.agno, bno), 1)))
 				return error;
 			xfs_trans_binval(cur->bc_tp, bp);
 			xfs_ialloc_log_agi(cur->bc_tp, agbp,
@@ -379,7 +379,7 @@ xfs_inobt_delrec(
 		rrecs = be16_to_cpu(right->bb_numrecs);
 		rbp = bp;
 		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
-				cur->bc_private.i.agno, lbno, 0, &lbp,
+				cur->bc_private.a.agno, lbno, 0, &lbp,
 				XFS_INO_BTREE_REF)))
 			return error;
 		left = XFS_BUF_TO_INOBT_BLOCK(lbp);
@@ -401,7 +401,7 @@ xfs_inobt_delrec(
 		lrecs = be16_to_cpu(left->bb_numrecs);
 		lbp = bp;
 		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
-				cur->bc_private.i.agno, rbno, 0, &rbp,
+				cur->bc_private.a.agno, rbno, 0, &rbp,
 				XFS_INO_BTREE_REF)))
 			return error;
 		right = XFS_BUF_TO_INOBT_BLOCK(rbp);
@@ -484,7 +484,7 @@ xfs_inobt_delrec(
 		xfs_buf_t		*rrbp;
 
 		if ((error = xfs_btree_read_bufs(mp, cur->bc_tp,
-				cur->bc_private.i.agno, be32_to_cpu(left->bb_rightsib), 0,
+				cur->bc_private.a.agno, be32_to_cpu(left->bb_rightsib), 0,
 				&rrbp, XFS_INO_BTREE_REF)))
 			return error;
 		rrblock = XFS_BUF_TO_INOBT_BLOCK(rrbp);
@@ -497,7 +497,7 @@ xfs_inobt_delrec(
 	 * Free the deleting block.
 	 */
 	if ((error = xfs_free_extent(cur->bc_tp, XFS_AGB_TO_FSB(mp,
-				     cur->bc_private.i.agno, rbno), 1)))
+				     cur->bc_private.a.agno, rbno), 1)))
 		return error;
 	xfs_trans_binval(cur->bc_tp, rbp);
 	/*
@@ -854,7 +854,7 @@ xfs_inobt_lookup(
 	{
 		xfs_agi_t	*agi;	/* a.g. inode header */
 
-		agi = XFS_BUF_TO_AGI(cur->bc_private.i.agbp);
+		agi = XFS_BUF_TO_AGI(cur->bc_private.a.agbp);
 		agno = be32_to_cpu(agi->agi_seqno);
 		agbno = be32_to_cpu(agi->agi_root);
 	}
@@ -1089,7 +1089,7 @@ xfs_inobt_lshift(
 	 * Set up the left neighbor as "left".
 	 */
 	if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
-			cur->bc_private.i.agno, be32_to_cpu(right->bb_leftsib),
+			cur->bc_private.a.agno, be32_to_cpu(right->bb_leftsib),
 			0, &lbp, XFS_INO_BTREE_REF)))
 		return error;
 	left = XFS_BUF_TO_INOBT_BLOCK(lbp);
@@ -1207,10 +1207,10 @@ xfs_inobt_newroot(
 	/*
 	 * Get a block & a buffer.
 	 */
-	agi = XFS_BUF_TO_AGI(cur->bc_private.i.agbp);
+	agi = XFS_BUF_TO_AGI(cur->bc_private.a.agbp);
 	args.tp = cur->bc_tp;
 	args.mp = cur->bc_mp;
-	args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.i.agno,
+	args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.a.agno,
 		be32_to_cpu(agi->agi_root));
 	args.mod = args.minleft = args.alignment = args.total = args.wasdel =
 		args.isfl = args.userdata = args.minalignslop = 0;
@@ -1233,7 +1233,7 @@ xfs_inobt_newroot(
 	 */
 	agi->agi_root = cpu_to_be32(args.agbno);
 	be32_add_cpu(&agi->agi_level, 1);
-	xfs_ialloc_log_agi(args.tp, cur->bc_private.i.agbp,
+	xfs_ialloc_log_agi(args.tp, cur->bc_private.a.agbp,
 		XFS_AGI_ROOT | XFS_AGI_LEVEL);
 	/*
 	 * At the previous root level there are now two blocks: the old
@@ -1376,7 +1376,7 @@ xfs_inobt_rshift(
 	 * Set up the right neighbor as "right".
 	 */
 	if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
-			cur->bc_private.i.agno, be32_to_cpu(left->bb_rightsib),
+			cur->bc_private.a.agno, be32_to_cpu(left->bb_rightsib),
 			0, &rbp, XFS_INO_BTREE_REF)))
 		return error;
 	right = XFS_BUF_TO_INOBT_BLOCK(rbp);
@@ -1492,7 +1492,7 @@ xfs_inobt_split(
 	 * Allocate the new block.
 	 * If we can't do it, we're toast.  Give up.
 	 */
-	args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.i.agno, lbno);
+	args.fsbno = XFS_AGB_TO_FSB(args.mp, cur->bc_private.a.agno, lbno);
 	args.mod = args.minleft = args.alignment = args.total = args.wasdel =
 		args.isfl = args.userdata = args.minalignslop = 0;
 	args.minlen = args.maxlen = args.prod = 1;
@@ -1725,7 +1725,7 @@ xfs_inobt_decrement(
 
 		agbno = be32_to_cpu(*XFS_INOBT_PTR_ADDR(block, cur->bc_ptrs[lev], cur));
 		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
-				cur->bc_private.i.agno, agbno, 0, &bp,
+				cur->bc_private.a.agno, agbno, 0, &bp,
 				XFS_INO_BTREE_REF)))
 			return error;
 		lev--;
@@ -1897,7 +1897,7 @@ xfs_inobt_increment(
 
 		agbno = be32_to_cpu(*XFS_INOBT_PTR_ADDR(block, cur->bc_ptrs[lev], cur));
 		if ((error = xfs_btree_read_bufs(cur->bc_mp, cur->bc_tp,
-				cur->bc_private.i.agno, agbno, 0, &bp,
+				cur->bc_private.a.agno, agbno, 0, &bp,
 				XFS_INO_BTREE_REF)))
 			return error;
 		lev--;
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index b07604b94d9f..e229e9e001c2 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -216,7 +216,14 @@ finish_inode:
 	mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino);
 	init_waitqueue_head(&ip->i_ipin_wait);
 	atomic_set(&ip->i_pincount, 0);
-	initnsema(&ip->i_flock, 1, "xfsfino");
+
+	/*
+	 * Because we want to use a counting completion, complete
+	 * the flush completion once to allow a single access to
+	 * the flush completion without blocking.
+	 */
+	init_completion(&ip->i_flush);
+	complete(&ip->i_flush);
 
 	if (lock_flags)
 		xfs_ilock(ip, lock_flags);
@@ -288,10 +295,17 @@ finish_inode:
 	*ipp = ip;
 
 	/*
+	 * Set up the Linux with the Linux inode.
+	 */
+	ip->i_vnode = inode;
+	inode->i_private = ip;
+
+	/*
 	 * If we have a real type for an on-disk inode, we can set ops(&unlock)
 	 * now.	 If it's a new inode being created, xfs_ialloc will handle it.
 	 */
-	xfs_initialize_vnode(mp, inode, ip);
+	if (ip->i_d.di_mode != 0)
+		xfs_setup_inode(ip);
 	return 0;
 }
 
@@ -411,10 +425,11 @@ xfs_iput(xfs_inode_t	*ip,
  * Special iput for brand-new inodes that are still locked
  */
 void
-xfs_iput_new(xfs_inode_t	*ip,
-	     uint		lock_flags)
+xfs_iput_new(
+	xfs_inode_t	*ip,
+	uint		lock_flags)
 {
-	struct inode	*inode = ip->i_vnode;
+	struct inode	*inode = VFS_I(ip);
 
 	xfs_itrace_entry(ip);
 
@@ -775,26 +790,3 @@ xfs_isilocked(
 }
 #endif
 
-/*
- * The following three routines simply manage the i_flock
- * semaphore embedded in the inode.  This semaphore synchronizes
- * processes attempting to flush the in-core inode back to disk.
- */
-void
-xfs_iflock(xfs_inode_t *ip)
-{
-	psema(&(ip->i_flock), PINOD|PLTWAIT);
-}
-
-int
-xfs_iflock_nowait(xfs_inode_t *ip)
-{
-	return (cpsema(&(ip->i_flock)));
-}
-
-void
-xfs_ifunlock(xfs_inode_t *ip)
-{
-	ASSERT(issemalocked(&(ip->i_flock)));
-	vsema(&(ip->i_flock));
-}
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index bedc66163176..00e80df9dd9d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -580,8 +580,8 @@ xfs_iformat_extents(
 		xfs_validate_extents(ifp, nex, XFS_EXTFMT_INODE(ip));
 		for (i = 0; i < nex; i++, dp++) {
 			xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i);
-			ep->l0 = be64_to_cpu(get_unaligned(&dp->l0));
-			ep->l1 = be64_to_cpu(get_unaligned(&dp->l1));
+			ep->l0 = get_unaligned_be64(&dp->l0);
+			ep->l1 = get_unaligned_be64(&dp->l1);
 		}
 		XFS_BMAP_TRACE_EXLIST(ip, nex, whichfork);
 		if (whichfork != XFS_DATA_FORK ||
@@ -835,22 +835,22 @@ xfs_iread(
 	 * Do this before xfs_iformat in case it adds entries.
 	 */
 #ifdef	XFS_INODE_TRACE
-	ip->i_trace = ktrace_alloc(INODE_TRACE_SIZE, KM_SLEEP);
+	ip->i_trace = ktrace_alloc(INODE_TRACE_SIZE, KM_NOFS);
 #endif
 #ifdef XFS_BMAP_TRACE
-	ip->i_xtrace = ktrace_alloc(XFS_BMAP_KTRACE_SIZE, KM_SLEEP);
+	ip->i_xtrace = ktrace_alloc(XFS_BMAP_KTRACE_SIZE, KM_NOFS);
 #endif
 #ifdef XFS_BMBT_TRACE
-	ip->i_btrace = ktrace_alloc(XFS_BMBT_KTRACE_SIZE, KM_SLEEP);
+	ip->i_btrace = ktrace_alloc(XFS_BMBT_KTRACE_SIZE, KM_NOFS);
 #endif
 #ifdef XFS_RW_TRACE
-	ip->i_rwtrace = ktrace_alloc(XFS_RW_KTRACE_SIZE, KM_SLEEP);
+	ip->i_rwtrace = ktrace_alloc(XFS_RW_KTRACE_SIZE, KM_NOFS);
 #endif
 #ifdef XFS_ILOCK_TRACE
-	ip->i_lock_trace = ktrace_alloc(XFS_ILOCK_KTRACE_SIZE, KM_SLEEP);
+	ip->i_lock_trace = ktrace_alloc(XFS_ILOCK_KTRACE_SIZE, KM_NOFS);
 #endif
 #ifdef XFS_DIR2_TRACE
-	ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_SLEEP);
+	ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS);
 #endif
 
 	/*
@@ -1046,9 +1046,9 @@ xfs_ialloc(
 {
 	xfs_ino_t	ino;
 	xfs_inode_t	*ip;
-	bhv_vnode_t	*vp;
 	uint		flags;
 	int		error;
+	timespec_t	tv;
 
 	/*
 	 * Call the space management code to pick
@@ -1077,13 +1077,12 @@ xfs_ialloc(
 	}
 	ASSERT(ip != NULL);
 
-	vp = XFS_ITOV(ip);
 	ip->i_d.di_mode = (__uint16_t)mode;
 	ip->i_d.di_onlink = 0;
 	ip->i_d.di_nlink = nlink;
 	ASSERT(ip->i_d.di_nlink == nlink);
-	ip->i_d.di_uid = current_fsuid(cr);
-	ip->i_d.di_gid = current_fsgid(cr);
+	ip->i_d.di_uid = current_fsuid();
+	ip->i_d.di_gid = current_fsgid();
 	ip->i_d.di_projid = prid;
 	memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
 
@@ -1130,7 +1129,13 @@ xfs_ialloc(
 	ip->i_size = 0;
 	ip->i_d.di_nextents = 0;
 	ASSERT(ip->i_d.di_nblocks == 0);
-	xfs_ichgtime(ip, XFS_ICHGTIME_CHG|XFS_ICHGTIME_ACC|XFS_ICHGTIME_MOD);
+
+	nanotime(&tv);
+	ip->i_d.di_mtime.t_sec = (__int32_t)tv.tv_sec;
+	ip->i_d.di_mtime.t_nsec = (__int32_t)tv.tv_nsec;
+	ip->i_d.di_atime = ip->i_d.di_mtime;
+	ip->i_d.di_ctime = ip->i_d.di_mtime;
+
 	/*
 	 * di_gen will have been taken care of in xfs_iread.
 	 */
@@ -1220,7 +1225,7 @@ xfs_ialloc(
 	xfs_trans_log_inode(tp, ip, flags);
 
 	/* now that we have an i_mode we can setup inode ops and unlock */
-	xfs_initialize_vnode(tp->t_mountp, vp, ip);
+	xfs_setup_inode(ip);
 
 	*ipp = ip;
 	return 0;
@@ -1399,7 +1404,6 @@ xfs_itruncate_start(
 	xfs_fsize_t	last_byte;
 	xfs_off_t	toss_start;
 	xfs_mount_t	*mp;
-	bhv_vnode_t	*vp;
 	int		error = 0;
 
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
@@ -1408,7 +1412,6 @@ xfs_itruncate_start(
 	       (flags == XFS_ITRUNC_MAYBE));
 
 	mp = ip->i_mount;
-	vp = XFS_ITOV(ip);
 
 	/* wait for the completion of any pending DIOs */
 	if (new_size < ip->i_size)
@@ -1457,7 +1460,7 @@ xfs_itruncate_start(
 
 #ifdef DEBUG
 	if (new_size == 0) {
-		ASSERT(VN_CACHED(vp) == 0);
+		ASSERT(VN_CACHED(VFS_I(ip)) == 0);
 	}
 #endif
 	return error;
@@ -2630,7 +2633,6 @@ xfs_idestroy(
 		xfs_idestroy_fork(ip, XFS_ATTR_FORK);
 	mrfree(&ip->i_lock);
 	mrfree(&ip->i_iolock);
-	freesema(&ip->i_flock);
 
 #ifdef XFS_INODE_TRACE
 	ktrace_free(ip->i_trace);
@@ -3048,10 +3050,10 @@ cluster_corrupt_out:
 /*
  * xfs_iflush() will write a modified inode's changes out to the
  * inode's on disk home.  The caller must have the inode lock held
- * in at least shared mode and the inode flush semaphore must be
- * held as well.  The inode lock will still be held upon return from
+ * in at least shared mode and the inode flush completion must be
+ * active as well.  The inode lock will still be held upon return from
  * the call and the caller is free to unlock it.
- * The inode flush lock will be unlocked when the inode reaches the disk.
+ * The inode flush will be completed when the inode reaches the disk.
  * The flags indicate how the inode's buffer should be written out.
  */
 int
@@ -3070,7 +3072,7 @@ xfs_iflush(
 	XFS_STATS_INC(xs_iflush_count);
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
-	ASSERT(issemalocked(&(ip->i_flock)));
+	ASSERT(!completion_done(&ip->i_flush));
 	ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
 	       ip->i_d.di_nextents > ip->i_df.if_ext_max);
 
@@ -3233,7 +3235,7 @@ xfs_iflush_int(
 #endif
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
-	ASSERT(issemalocked(&(ip->i_flock)));
+	ASSERT(!completion_done(&ip->i_flush));
 	ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
 	       ip->i_d.di_nextents > ip->i_df.if_ext_max);
 
@@ -3465,7 +3467,6 @@ xfs_iflush_all(
 	xfs_mount_t	*mp)
 {
 	xfs_inode_t	*ip;
-	bhv_vnode_t	*vp;
 
  again:
 	XFS_MOUNT_ILOCK(mp);
@@ -3480,14 +3481,13 @@ xfs_iflush_all(
 			continue;
 		}
 
-		vp = XFS_ITOV_NULL(ip);
-		if (!vp) {
+		if (!VFS_I(ip)) {
 			XFS_MOUNT_IUNLOCK(mp);
 			xfs_finish_reclaim(ip, 0, XFS_IFLUSH_ASYNC);
 			goto again;
 		}
 
-		ASSERT(vn_count(vp) == 0);
+		ASSERT(vn_count(VFS_I(ip)) == 0);
 
 		ip = ip->i_mnext;
 	} while (ip != mp->m_inodes);
@@ -3707,7 +3707,7 @@ xfs_iext_add_indirect_multi(
 	 * (all extents past */
 	if (nex2) {
 		byte_diff = nex2 * sizeof(xfs_bmbt_rec_t);
-		nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_SLEEP);
+		nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_NOFS);
 		memmove(nex2_ep, &erp->er_extbuf[idx], byte_diff);
 		erp->er_extcount -= nex2;
 		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, -nex2);
@@ -4007,8 +4007,7 @@ xfs_iext_realloc_direct(
 			ifp->if_u1.if_extents =
 				kmem_realloc(ifp->if_u1.if_extents,
 						rnew_size,
-						ifp->if_real_bytes,
-						KM_SLEEP);
+						ifp->if_real_bytes, KM_NOFS);
 		}
 		if (rnew_size > ifp->if_real_bytes) {
 			memset(&ifp->if_u1.if_extents[ifp->if_bytes /
@@ -4067,7 +4066,7 @@ xfs_iext_inline_to_direct(
 	xfs_ifork_t	*ifp,		/* inode fork pointer */
 	int		new_size)	/* number of extents in file */
 {
-	ifp->if_u1.if_extents = kmem_alloc(new_size, KM_SLEEP);
+	ifp->if_u1.if_extents = kmem_alloc(new_size, KM_NOFS);
 	memset(ifp->if_u1.if_extents, 0, new_size);
 	if (ifp->if_bytes) {
 		memcpy(ifp->if_u1.if_extents, ifp->if_u2.if_inline_ext,
@@ -4099,7 +4098,7 @@ xfs_iext_realloc_indirect(
 	} else {
 		ifp->if_u1.if_ext_irec = (xfs_ext_irec_t *)
 			kmem_realloc(ifp->if_u1.if_ext_irec,
-				new_size, size, KM_SLEEP);
+				new_size, size, KM_NOFS);
 	}
 }
 
@@ -4341,11 +4340,10 @@ xfs_iext_irec_init(
 	nextents = ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
 	ASSERT(nextents <= XFS_LINEAR_EXTS);
 
-	erp = (xfs_ext_irec_t *)
-		kmem_alloc(sizeof(xfs_ext_irec_t), KM_SLEEP);
+	erp = kmem_alloc(sizeof(xfs_ext_irec_t), KM_NOFS);
 
 	if (nextents == 0) {
-		ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_SLEEP);
+		ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
 	} else if (!ifp->if_real_bytes) {
 		xfs_iext_inline_to_direct(ifp, XFS_IEXT_BUFSZ);
 	} else if (ifp->if_real_bytes < XFS_IEXT_BUFSZ) {
@@ -4393,7 +4391,7 @@ xfs_iext_irec_new(
 
 	/* Initialize new extent record */
 	erp = ifp->if_u1.if_ext_irec;
-	erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_SLEEP);
+	erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
 	ifp->if_real_bytes = nlists * XFS_IEXT_BUFSZ;
 	memset(erp[erp_idx].er_extbuf, 0, XFS_IEXT_BUFSZ);
 	erp[erp_idx].er_extcount = 0;
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 17a04b6321ed..1420c49674d7 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -87,8 +87,7 @@ typedef struct xfs_ifork {
  * Flags for xfs_ichgtime().
  */
 #define	XFS_ICHGTIME_MOD	0x1	/* data fork modification timestamp */
-#define	XFS_ICHGTIME_ACC	0x2	/* data fork access timestamp */
-#define	XFS_ICHGTIME_CHG	0x4	/* inode field change timestamp */
+#define	XFS_ICHGTIME_CHG	0x2	/* inode field change timestamp */
 
 /*
  * Per-fork incore inode flags.
@@ -204,7 +203,7 @@ typedef struct xfs_inode {
 	struct xfs_inode	*i_mprev;	/* ptr to prev inode */
 	struct xfs_mount	*i_mount;	/* fs mount struct ptr */
 	struct list_head	i_reclaim;	/* reclaim list */
-	bhv_vnode_t		*i_vnode;	/* vnode backpointer */
+	struct inode		*i_vnode;	/* vnode backpointer */
 	struct xfs_dquot	*i_udquot;	/* user dquot */
 	struct xfs_dquot	*i_gdquot;	/* group dquot */
 
@@ -223,7 +222,7 @@ typedef struct xfs_inode {
 	struct xfs_inode_log_item *i_itemp;	/* logging information */
 	mrlock_t		i_lock;		/* inode lock */
 	mrlock_t		i_iolock;	/* inode IO lock */
-	sema_t			i_flock;	/* inode flush lock */
+	struct completion	i_flush;	/* inode flush completion q */
 	atomic_t		i_pincount;	/* inode pin count */
 	wait_queue_head_t	i_ipin_wait;	/* inode pinning wait queue */
 	spinlock_t		i_flags_lock;	/* inode i_flags lock */
@@ -263,6 +262,18 @@ typedef struct xfs_inode {
 #define XFS_ISIZE(ip)	(((ip)->i_d.di_mode & S_IFMT) == S_IFREG) ? \
 				(ip)->i_size : (ip)->i_d.di_size;
 
+/* Convert from vfs inode to xfs inode */
+static inline struct xfs_inode *XFS_I(struct inode *inode)
+{
+	return (struct xfs_inode *)inode->i_private;
+}
+
+/* convert from xfs inode to vfs inode */
+static inline struct inode *VFS_I(struct xfs_inode *ip)
+{
+	return (struct inode *)ip->i_vnode;
+}
+
 /*
  * i_flags helper functions
  */
@@ -439,9 +450,6 @@ xfs_iflags_test_and_clear(xfs_inode_t *ip, unsigned short flags)
 #define	XFS_ITRUNC_DEFINITE	0x1
 #define	XFS_ITRUNC_MAYBE	0x2
 
-#define	XFS_ITOV(ip)		((ip)->i_vnode)
-#define	XFS_ITOV_NULL(ip)	((ip)->i_vnode)
-
 /*
  * For multiple groups support: if S_ISGID bit is set in the parent
  * directory, group of new file is set to that of the parent, and
@@ -473,11 +481,8 @@ int		xfs_ilock_nowait(xfs_inode_t *, uint);
 void		xfs_iunlock(xfs_inode_t *, uint);
 void		xfs_ilock_demote(xfs_inode_t *, uint);
 int		xfs_isilocked(xfs_inode_t *, uint);
-void		xfs_iflock(xfs_inode_t *);
-int		xfs_iflock_nowait(xfs_inode_t *);
 uint		xfs_ilock_map_shared(xfs_inode_t *);
 void		xfs_iunlock_map_shared(xfs_inode_t *, uint);
-void		xfs_ifunlock(xfs_inode_t *);
 void		xfs_ireclaim(xfs_inode_t *);
 int		xfs_finish_reclaim(xfs_inode_t *, int, int);
 int		xfs_finish_reclaim_all(struct xfs_mount *, int);
@@ -522,6 +527,7 @@ void		xfs_iflush_all(struct xfs_mount *);
 void		xfs_ichgtime(xfs_inode_t *, int);
 xfs_fsize_t	xfs_file_last_byte(xfs_inode_t *);
 void		xfs_lock_inodes(xfs_inode_t **, int, uint);
+void		xfs_lock_two_inodes(xfs_inode_t *, xfs_inode_t *, uint);
 
 void		xfs_synchronize_atime(xfs_inode_t *);
 void		xfs_mark_inode_dirty_sync(xfs_inode_t *);
@@ -570,6 +576,26 @@ extern struct kmem_zone	*xfs_ifork_zone;
 extern struct kmem_zone	*xfs_inode_zone;
 extern struct kmem_zone	*xfs_ili_zone;
 
+/*
+ * Manage the i_flush queue embedded in the inode.  This completion
+ * queue synchronizes processes attempting to flush the in-core
+ * inode back to disk.
+ */
+static inline void xfs_iflock(xfs_inode_t *ip)
+{
+	wait_for_completion(&ip->i_flush);
+}
+
+static inline int xfs_iflock_nowait(xfs_inode_t *ip)
+{
+	return try_wait_for_completion(&ip->i_flush);
+}
+
+static inline void xfs_ifunlock(xfs_inode_t *ip)
+{
+	complete(&ip->i_flush);
+}
+
 #endif	/* __KERNEL__ */
 
 #endif	/* __XFS_INODE_H__ */
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 0eee08a32c26..97c7452e2620 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -779,11 +779,10 @@ xfs_inode_item_pushbuf(
 	ASSERT(iip->ili_push_owner == current_pid());
 
 	/*
-	 * If flushlock isn't locked anymore, chances are that the
-	 * inode flush completed and the inode was taken off the AIL.
-	 * So, just get out.
+	 * If a flush is not in progress anymore, chances are that the
+	 * inode was taken off the AIL. So, just get out.
 	 */
-	if (!issemalocked(&(ip->i_flock)) ||
+	if (completion_done(&ip->i_flush) ||
 	    ((iip->ili_item.li_flags & XFS_LI_IN_AIL) == 0)) {
 		iip->ili_pushbuf_flag = 0;
 		xfs_iunlock(ip, XFS_ILOCK_SHARED);
@@ -805,7 +804,7 @@ xfs_inode_item_pushbuf(
 			 * If not, we can flush it async.
 			 */
 			dopush = ((iip->ili_item.li_flags & XFS_LI_IN_AIL) &&
-				  issemalocked(&(ip->i_flock)));
+				  !completion_done(&ip->i_flush));
 			iip->ili_pushbuf_flag = 0;
 			xfs_iunlock(ip, XFS_ILOCK_SHARED);
 			xfs_buftrace("INODE ITEM PUSH", bp);
@@ -858,7 +857,7 @@ xfs_inode_item_push(
 	ip = iip->ili_inode;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_SHARED));
-	ASSERT(issemalocked(&(ip->i_flock)));
+	ASSERT(!completion_done(&ip->i_flush));
 	/*
 	 * Since we were able to lock the inode's flush lock and
 	 * we found it on the AIL, the inode must be dirty.  This
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 9a3ef9dcaeb9..cf6754a3c5b3 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -59,7 +59,6 @@ xfs_bulkstat_one_iget(
 {
 	xfs_icdinode_t	*dic;	/* dinode core info pointer */
 	xfs_inode_t	*ip;		/* incore inode pointer */
-	bhv_vnode_t	*vp;
 	int		error;
 
 	error = xfs_iget(mp, NULL, ino,
@@ -72,7 +71,6 @@ xfs_bulkstat_one_iget(
 	ASSERT(ip != NULL);
 	ASSERT(ip->i_blkno != (xfs_daddr_t)0);
 
-	vp = XFS_ITOV(ip);
 	dic = &ip->i_d;
 
 	/* xfs_iget returns the following without needing
@@ -85,7 +83,7 @@ xfs_bulkstat_one_iget(
 	buf->bs_uid = dic->di_uid;
 	buf->bs_gid = dic->di_gid;
 	buf->bs_size = dic->di_size;
-	vn_atime_to_bstime(vp, &buf->bs_atime);
+	vn_atime_to_bstime(VFS_I(ip), &buf->bs_atime);
 	buf->bs_mtime.tv_sec = dic->di_mtime.t_sec;
 	buf->bs_mtime.tv_nsec = dic->di_mtime.t_nsec;
 	buf->bs_ctime.tv_sec = dic->di_ctime.t_sec;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 91b00a5686cd..ccba14eb9dbe 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -160,7 +160,7 @@ void
 xlog_trace_iclog(xlog_in_core_t *iclog, uint state)
 {
 	if (!iclog->ic_trace)
-		iclog->ic_trace = ktrace_alloc(256, KM_SLEEP);
+		iclog->ic_trace = ktrace_alloc(256, KM_NOFS);
 	ktrace_enter(iclog->ic_trace,
 		     (void *)((unsigned long)state),
 		     (void *)((unsigned long)current_pid()),
@@ -336,15 +336,12 @@ xfs_log_done(xfs_mount_t	*mp,
 	} else {
 		xlog_trace_loggrant(log, ticket, "xfs_log_done: (permanent)");
 		xlog_regrant_reserve_log_space(log, ticket);
-	}
-
-	/* If this ticket was a permanent reservation and we aren't
-	 * trying to release it, reset the inited flags; so next time
-	 * we write, a start record will be written out.
-	 */
-	if ((ticket->t_flags & XLOG_TIC_PERM_RESERV) &&
-	    (flags & XFS_LOG_REL_PERM_RESERV) == 0)
+		/* If this ticket was a permanent reservation and we aren't
+		 * trying to release it, reset the inited flags; so next time
+		 * we write, a start record will be written out.
+		 */
 		ticket->t_flags |= XLOG_TIC_INITED;
+	}
 
 	return lsn;
 }	/* xfs_log_done */
@@ -357,11 +354,11 @@ xfs_log_done(xfs_mount_t	*mp,
  * Asynchronous forces are implemented by setting the WANT_SYNC
  * bit in the appropriate in-core log and then returning.
  *
- * Synchronous forces are implemented with a semaphore.  All callers
- * to force a given lsn to disk will wait on a semaphore attached to the
+ * Synchronous forces are implemented with a signal variable. All callers
+ * to force a given lsn to disk will wait on a the sv attached to the
  * specific in-core log.  When given in-core log finally completes its
  * write to disk, that thread will wake up all threads waiting on the
- * semaphore.
+ * sv.
  */
 int
 _xfs_log_force(
@@ -588,12 +585,12 @@ error:
  * mp		- ubiquitous xfs mount point structure
  */
 int
-xfs_log_mount_finish(xfs_mount_t *mp, int mfsi_flags)
+xfs_log_mount_finish(xfs_mount_t *mp)
 {
 	int	error;
 
 	if (!(mp->m_flags & XFS_MOUNT_NORECOVERY))
-		error = xlog_recover_finish(mp->m_log, mfsi_flags);
+		error = xlog_recover_finish(mp->m_log);
 	else {
 		error = 0;
 		ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
@@ -707,7 +704,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 		if (!(iclog->ic_state == XLOG_STATE_ACTIVE ||
 		      iclog->ic_state == XLOG_STATE_DIRTY)) {
 			if (!XLOG_FORCED_SHUTDOWN(log)) {
-				sv_wait(&iclog->ic_forcesema, PMEM,
+				sv_wait(&iclog->ic_force_wait, PMEM,
 					&log->l_icloglock, s);
 			} else {
 				spin_unlock(&log->l_icloglock);
@@ -748,7 +745,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 			|| iclog->ic_state == XLOG_STATE_DIRTY
 			|| iclog->ic_state == XLOG_STATE_IOERROR) ) {
 
-				sv_wait(&iclog->ic_forcesema, PMEM,
+				sv_wait(&iclog->ic_force_wait, PMEM,
 					&log->l_icloglock, s);
 		} else {
 			spin_unlock(&log->l_icloglock);
@@ -838,7 +835,7 @@ xfs_log_move_tail(xfs_mount_t	*mp,
 				break;
 			tail_lsn = 0;
 			free_bytes -= tic->t_unit_res;
-			sv_signal(&tic->t_sema);
+			sv_signal(&tic->t_wait);
 			tic = tic->t_next;
 		} while (tic != log->l_write_headq);
 	}
@@ -859,7 +856,7 @@ xfs_log_move_tail(xfs_mount_t	*mp,
 				break;
 			tail_lsn = 0;
 			free_bytes -= need_bytes;
-			sv_signal(&tic->t_sema);
+			sv_signal(&tic->t_wait);
 			tic = tic->t_next;
 		} while (tic != log->l_reserve_headq);
 	}
@@ -1285,8 +1282,8 @@ xlog_alloc_log(xfs_mount_t	*mp,
 
 		ASSERT(XFS_BUF_ISBUSY(iclog->ic_bp));
 		ASSERT(XFS_BUF_VALUSEMA(iclog->ic_bp) <= 0);
-		sv_init(&iclog->ic_forcesema, SV_DEFAULT, "iclog-force");
-		sv_init(&iclog->ic_writesema, SV_DEFAULT, "iclog-write");
+		sv_init(&iclog->ic_force_wait, SV_DEFAULT, "iclog-force");
+		sv_init(&iclog->ic_write_wait, SV_DEFAULT, "iclog-write");
 
 		iclogp = &iclog->ic_next;
 	}
@@ -1565,8 +1562,8 @@ xlog_dealloc_log(xlog_t *log)
 
 	iclog = log->l_iclog;
 	for (i=0; i<log->l_iclog_bufs; i++) {
-		sv_destroy(&iclog->ic_forcesema);
-		sv_destroy(&iclog->ic_writesema);
+		sv_destroy(&iclog->ic_force_wait);
+		sv_destroy(&iclog->ic_write_wait);
 		xfs_buf_free(iclog->ic_bp);
 #ifdef XFS_LOG_TRACE
 		if (iclog->ic_trace != NULL) {
@@ -1976,7 +1973,7 @@ xlog_write(xfs_mount_t *	mp,
 /* Clean iclogs starting from the head.  This ordering must be
  * maintained, so an iclog doesn't become ACTIVE beyond one that
  * is SYNCING.  This is also required to maintain the notion that we use
- * a counting semaphore to hold off would be writers to the log when every
+ * a ordered wait queue to hold off would be writers to the log when every
  * iclog is trying to sync to disk.
  *
  * State Change: DIRTY -> ACTIVE
@@ -2240,7 +2237,7 @@ xlog_state_do_callback(
 			xlog_state_clean_log(log);
 
 			/* wake up threads waiting in xfs_log_force() */
-			sv_broadcast(&iclog->ic_forcesema);
+			sv_broadcast(&iclog->ic_force_wait);
 
 			iclog = iclog->ic_next;
 		} while (first_iclog != iclog);
@@ -2302,8 +2299,7 @@ xlog_state_do_callback(
  * the second completion goes through.
  *
  * Callbacks could take time, so they are done outside the scope of the
- * global state machine log lock.  Assume that the calls to cvsema won't
- * take a long time.  At least we know it won't sleep.
+ * global state machine log lock.
  */
 STATIC void
 xlog_state_done_syncing(
@@ -2339,7 +2335,7 @@ xlog_state_done_syncing(
 	 * iclog buffer, we wake them all, one will get to do the
 	 * I/O, the others get to wait for the result.
 	 */
-	sv_broadcast(&iclog->ic_writesema);
+	sv_broadcast(&iclog->ic_write_wait);
 	spin_unlock(&log->l_icloglock);
 	xlog_state_do_callback(log, aborted, iclog);	/* also cleans log */
 }	/* xlog_state_done_syncing */
@@ -2347,11 +2343,9 @@ xlog_state_done_syncing(
 
 /*
  * If the head of the in-core log ring is not (ACTIVE or DIRTY), then we must
- * sleep.  The flush semaphore is set to the number of in-core buffers and
- * decremented around disk syncing.  Therefore, if all buffers are syncing,
- * this semaphore will cause new writes to sleep until a sync completes.
- * Otherwise, this code just does p() followed by v().  This approximates
- * a sleep/wakeup except we can't race.
+ * sleep.  We wait on the flush queue on the head iclog as that should be
+ * the first iclog to complete flushing. Hence if all iclogs are syncing,
+ * we will wait here and all new writes will sleep until a sync completes.
  *
  * The in-core logs are used in a circular fashion. They are not used
  * out-of-order even when an iclog past the head is free.
@@ -2508,7 +2502,7 @@ xlog_grant_log_space(xlog_t	   *log,
 			goto error_return;
 
 		XFS_STATS_INC(xs_sleep_logspace);
-		sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+		sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
 		/*
 		 * If we got an error, and the filesystem is shutting down,
 		 * we'll catch it down below. So just continue...
@@ -2534,7 +2528,7 @@ redo:
 		xlog_trace_loggrant(log, tic,
 				    "xlog_grant_log_space: sleep 2");
 		XFS_STATS_INC(xs_sleep_logspace);
-		sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+		sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
 
 		if (XLOG_FORCED_SHUTDOWN(log)) {
 			spin_lock(&log->l_grant_lock);
@@ -2633,7 +2627,7 @@ xlog_regrant_write_log_space(xlog_t	   *log,
 			if (free_bytes < ntic->t_unit_res)
 				break;
 			free_bytes -= ntic->t_unit_res;
-			sv_signal(&ntic->t_sema);
+			sv_signal(&ntic->t_wait);
 			ntic = ntic->t_next;
 		} while (ntic != log->l_write_headq);
 
@@ -2644,7 +2638,7 @@ xlog_regrant_write_log_space(xlog_t	   *log,
 			xlog_trace_loggrant(log, tic,
 				    "xlog_regrant_write_log_space: sleep 1");
 			XFS_STATS_INC(xs_sleep_logspace);
-			sv_wait(&tic->t_sema, PINOD|PLTWAIT,
+			sv_wait(&tic->t_wait, PINOD|PLTWAIT,
 				&log->l_grant_lock, s);
 
 			/* If we're shutting down, this tic is already
@@ -2673,7 +2667,7 @@ redo:
 		if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
 			xlog_ins_ticketq(&log->l_write_headq, tic);
 		XFS_STATS_INC(xs_sleep_logspace);
-		sv_wait(&tic->t_sema, PINOD|PLTWAIT, &log->l_grant_lock, s);
+		sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
 
 		/* If we're shutting down, this tic is already off the queue */
 		if (XLOG_FORCED_SHUTDOWN(log)) {
@@ -2916,7 +2910,7 @@ xlog_state_switch_iclogs(xlog_t		*log,
  *	2. the current iclog is drity, and the previous iclog is in the
  *		active or dirty state.
  *
- * We may sleep (call psema) if:
+ * We may sleep if:
  *
  *	1. the current iclog is not in the active nor dirty state.
  *	2. the current iclog dirty, and the previous iclog is not in the
@@ -3013,7 +3007,7 @@ maybe_sleep:
 			return XFS_ERROR(EIO);
 		}
 		XFS_STATS_INC(xs_log_force_sleep);
-		sv_wait(&iclog->ic_forcesema, PINOD, &log->l_icloglock, s);
+		sv_wait(&iclog->ic_force_wait, PINOD, &log->l_icloglock, s);
 		/*
 		 * No need to grab the log lock here since we're
 		 * only deciding whether or not to return EIO
@@ -3096,7 +3090,7 @@ try_again:
 						 XLOG_STATE_SYNCING))) {
 			ASSERT(!(iclog->ic_state & XLOG_STATE_IOERROR));
 			XFS_STATS_INC(xs_log_force_sleep);
-			sv_wait(&iclog->ic_prev->ic_writesema, PSWP,
+			sv_wait(&iclog->ic_prev->ic_write_wait, PSWP,
 				&log->l_icloglock, s);
 			*log_flushed = 1;
 			already_slept = 1;
@@ -3116,7 +3110,7 @@ try_again:
 	    !(iclog->ic_state & (XLOG_STATE_ACTIVE | XLOG_STATE_DIRTY))) {
 
 		/*
-		 * Don't wait on the forcesema if we know that we've
+		 * Don't wait on completion if we know that we've
 		 * gotten a log write error.
 		 */
 		if (iclog->ic_state & XLOG_STATE_IOERROR) {
@@ -3124,7 +3118,7 @@ try_again:
 			return XFS_ERROR(EIO);
 		}
 		XFS_STATS_INC(xs_log_force_sleep);
-		sv_wait(&iclog->ic_forcesema, PSWP, &log->l_icloglock, s);
+		sv_wait(&iclog->ic_force_wait, PSWP, &log->l_icloglock, s);
 		/*
 		 * No need to grab the log lock here since we're
 		 * only deciding whether or not to return EIO
@@ -3180,7 +3174,7 @@ STATIC void
 xlog_ticket_put(xlog_t		*log,
 		xlog_ticket_t	*ticket)
 {
-	sv_destroy(&ticket->t_sema);
+	sv_destroy(&ticket->t_wait);
 	kmem_zone_free(xfs_log_ticket_zone, ticket);
 }	/* xlog_ticket_put */
 
@@ -3270,7 +3264,7 @@ xlog_ticket_get(xlog_t		*log,
 	tic->t_trans_type	= 0;
 	if (xflags & XFS_LOG_PERM_RESERV)
 		tic->t_flags |= XLOG_TIC_PERM_RESERV;
-	sv_init(&(tic->t_sema), SV_DEFAULT, "logtick");
+	sv_init(&(tic->t_wait), SV_DEFAULT, "logtick");
 
 	xlog_tic_reset_res(tic);
 
@@ -3557,14 +3551,14 @@ xfs_log_force_umount(
 	 */
 	if ((tic = log->l_reserve_headq)) {
 		do {
-			sv_signal(&tic->t_sema);
+			sv_signal(&tic->t_wait);
 			tic = tic->t_next;
 		} while (tic != log->l_reserve_headq);
 	}
 
 	if ((tic = log->l_write_headq)) {
 		do {
-			sv_signal(&tic->t_sema);
+			sv_signal(&tic->t_wait);
 			tic = tic->t_next;
 		} while (tic != log->l_write_headq);
 	}
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index d1d678ecb63e..d47b91f10822 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -149,7 +149,7 @@ int	  xfs_log_mount(struct xfs_mount	*mp,
 			struct xfs_buftarg	*log_target,
 			xfs_daddr_t		start_block,
 			int		 	num_bblocks);
-int	  xfs_log_mount_finish(struct xfs_mount *mp, int);
+int	  xfs_log_mount_finish(struct xfs_mount *mp);
 void	  xfs_log_move_tail(struct xfs_mount	*mp,
 			    xfs_lsn_t		tail_lsn);
 int	  xfs_log_notify(struct xfs_mount	*mp,
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 6245913196b4..c8a5b22ee3e3 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -241,7 +241,7 @@ typedef struct xlog_res {
 } xlog_res_t;
 
 typedef struct xlog_ticket {
-	sv_t		   t_sema;	 /* sleep on this semaphore      : 20 */
+	sv_t		   t_wait;	 /* ticket wait queue            : 20 */
 	struct xlog_ticket *t_next;	 /*			         :4|8 */
 	struct xlog_ticket *t_prev;	 /*				 :4|8 */
 	xlog_tid_t	   t_tid;	 /* transaction identifier	 : 4  */
@@ -314,7 +314,7 @@ typedef struct xlog_rec_ext_header {
  *	xlog_rec_header_t into the reserved space.
  * - ic_data follows, so a write to disk can start at the beginning of
  *	the iclog.
- * - ic_forcesema is used to implement synchronous forcing of the iclog to disk.
+ * - ic_forcewait is used to implement synchronous forcing of the iclog to disk.
  * - ic_next is the pointer to the next iclog in the ring.
  * - ic_bp is a pointer to the buffer used to write this incore log to disk.
  * - ic_log is a pointer back to the global log structure.
@@ -339,8 +339,8 @@ typedef struct xlog_rec_ext_header {
  * and move everything else out to subsequent cachelines.
  */
 typedef struct xlog_iclog_fields {
-	sv_t			ic_forcesema;
-	sv_t			ic_writesema;
+	sv_t			ic_force_wait;
+	sv_t			ic_write_wait;
 	struct xlog_in_core	*ic_next;
 	struct xlog_in_core	*ic_prev;
 	struct xfs_buf		*ic_bp;
@@ -377,8 +377,8 @@ typedef struct xlog_in_core {
 /*
  * Defines to save our code from this glop.
  */
-#define	ic_forcesema	hic_fields.ic_forcesema
-#define ic_writesema	hic_fields.ic_writesema
+#define	ic_force_wait	hic_fields.ic_force_wait
+#define ic_write_wait	hic_fields.ic_write_wait
 #define	ic_next		hic_fields.ic_next
 #define	ic_prev		hic_fields.ic_prev
 #define	ic_bp		hic_fields.ic_bp
@@ -468,7 +468,7 @@ extern int	 xlog_find_tail(xlog_t	*log,
 				xfs_daddr_t *head_blk,
 				xfs_daddr_t *tail_blk);
 extern int	 xlog_recover(xlog_t *log);
-extern int	 xlog_recover_finish(xlog_t *log, int mfsi_flags);
+extern int	 xlog_recover_finish(xlog_t *log);
 extern void	 xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int);
 extern void	 xlog_recover_process_iunlinks(xlog_t *log);
 
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 9eb722ec744e..82d46ce69d5f 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3940,8 +3940,7 @@ xlog_recover(
  */
 int
 xlog_recover_finish(
-	xlog_t		*log,
-	int		mfsi_flags)
+	xlog_t		*log)
 {
 	/*
 	 * Now we're ready to do the transactions needed for the
@@ -3969,9 +3968,7 @@ xlog_recover_finish(
 		xfs_log_force(log->l_mp, (xfs_lsn_t)0,
 			      (XFS_LOG_FORCE | XFS_LOG_SYNC));
 
-		if ( (mfsi_flags & XFS_MFSI_NOUNLINK) == 0 ) {
-			xlog_recover_process_iunlinks(log);
-		}
+		xlog_recover_process_iunlinks(log);
 
 		xlog_recover_check_summary(log);
 
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 6c5d1325e7f6..a4503f5e9497 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -128,7 +128,7 @@ static const struct {
  * initialized.
  */
 STATIC void
-xfs_mount_free(
+xfs_free_perag(
 	xfs_mount_t	*mp)
 {
 	if (mp->m_perag) {
@@ -139,20 +139,6 @@ xfs_mount_free(
 				kmem_free(mp->m_perag[agno].pagb_list);
 		kmem_free(mp->m_perag);
 	}
-
-	spinlock_destroy(&mp->m_ail_lock);
-	spinlock_destroy(&mp->m_sb_lock);
-	mutex_destroy(&mp->m_ilock);
-	mutex_destroy(&mp->m_growlock);
-	if (mp->m_quotainfo)
-		XFS_QM_DONE(mp);
-
-	if (mp->m_fsname != NULL)
-		kmem_free(mp->m_fsname);
-	if (mp->m_rtname != NULL)
-		kmem_free(mp->m_rtname);
-	if (mp->m_logname != NULL)
-		kmem_free(mp->m_logname);
 }
 
 /*
@@ -704,11 +690,11 @@ xfs_initialize_perag_data(xfs_mount_t *mp, xfs_agnumber_t agcount)
  * Update alignment values based on mount options and sb values
  */
 STATIC int
-xfs_update_alignment(xfs_mount_t *mp, int mfsi_flags, __uint64_t *update_flags)
+xfs_update_alignment(xfs_mount_t *mp, __uint64_t *update_flags)
 {
 	xfs_sb_t	*sbp = &(mp->m_sb);
 
-	if (mp->m_dalign && !(mfsi_flags & XFS_MFSI_SECOND)) {
+	if (mp->m_dalign) {
 		/*
 		 * If stripe unit and stripe width are not multiples
 		 * of the fs blocksize turn off alignment.
@@ -864,7 +850,7 @@ xfs_set_inoalignment(xfs_mount_t *mp)
  * Check that the data (and log if separate) are an ok size.
  */
 STATIC int
-xfs_check_sizes(xfs_mount_t *mp, int mfsi_flags)
+xfs_check_sizes(xfs_mount_t *mp)
 {
 	xfs_buf_t	*bp;
 	xfs_daddr_t	d;
@@ -887,8 +873,7 @@ xfs_check_sizes(xfs_mount_t *mp, int mfsi_flags)
 		return error;
 	}
 
-	if (((mfsi_flags & XFS_MFSI_CLIENT) == 0) &&
-	    mp->m_logdev_targp != mp->m_ddev_targp) {
+	if (mp->m_logdev_targp != mp->m_ddev_targp) {
 		d = (xfs_daddr_t)XFS_FSB_TO_BB(mp, mp->m_sb.sb_logblocks);
 		if (XFS_BB_TO_FSB(mp, d) != mp->m_sb.sb_logblocks) {
 			cmn_err(CE_WARN, "XFS: size check 3 failed");
@@ -923,15 +908,13 @@ xfs_check_sizes(xfs_mount_t *mp, int mfsi_flags)
  */
 int
 xfs_mountfs(
-	xfs_mount_t	*mp,
-	int		mfsi_flags)
+	xfs_mount_t	*mp)
 {
 	xfs_sb_t	*sbp = &(mp->m_sb);
 	xfs_inode_t	*rip;
 	__uint64_t	resblks;
 	__int64_t	update_flags = 0LL;
 	uint		quotamount, quotaflags;
-	int		agno;
 	int		uuid_mounted = 0;
 	int		error = 0;
 
@@ -985,7 +968,7 @@ xfs_mountfs(
 	 * allocator alignment is within an ag, therefore ag has
 	 * to be aligned at stripe boundary.
 	 */
-	error = xfs_update_alignment(mp, mfsi_flags, &update_flags);
+	error = xfs_update_alignment(mp, &update_flags);
 	if (error)
 		goto error1;
 
@@ -1004,8 +987,7 @@ xfs_mountfs(
 	 * since a single partition filesystem is identical to a single
 	 * partition volume/filesystem.
 	 */
-	if ((mfsi_flags & XFS_MFSI_SECOND) == 0 &&
-	    (mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
+	if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0) {
 		if (xfs_uuid_mount(mp)) {
 			error = XFS_ERROR(EINVAL);
 			goto error1;
@@ -1033,7 +1015,7 @@ xfs_mountfs(
 	/*
 	 * Check that the data (and log if separate) are an ok size.
 	 */
-	error = xfs_check_sizes(mp, mfsi_flags);
+	error = xfs_check_sizes(mp);
 	if (error)
 		goto error1;
 
@@ -1047,13 +1029,6 @@ xfs_mountfs(
 	}
 
 	/*
-	 * For client case we are done now
-	 */
-	if (mfsi_flags & XFS_MFSI_CLIENT) {
-		return 0;
-	}
-
-	/*
 	 *  Copies the low order bits of the timestamp and the randomly
 	 *  set "sequence" number out of a UUID.
 	 */
@@ -1077,8 +1052,10 @@ xfs_mountfs(
 	 * Allocate and initialize the per-ag data.
 	 */
 	init_rwsem(&mp->m_peraglock);
-	mp->m_perag =
-		kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t), KM_SLEEP);
+	mp->m_perag = kmem_zalloc(sbp->sb_agcount * sizeof(xfs_perag_t),
+				  KM_MAYFAIL);
+	if (!mp->m_perag)
+		goto error1;
 
 	mp->m_maxagi = xfs_initialize_perag(mp, sbp->sb_agcount);
 
@@ -1190,7 +1167,7 @@ xfs_mountfs(
 	 * delayed until after the root and real-time bitmap inodes
 	 * were consistently read in.
 	 */
-	error = xfs_log_mount_finish(mp, mfsi_flags);
+	error = xfs_log_mount_finish(mp);
 	if (error) {
 		cmn_err(CE_WARN, "XFS: log mount finish failed");
 		goto error4;
@@ -1199,7 +1176,7 @@ xfs_mountfs(
 	/*
 	 * Complete the quota initialisation, post-log-replay component.
 	 */
-	error = XFS_QM_MOUNT(mp, quotamount, quotaflags, mfsi_flags);
+	error = XFS_QM_MOUNT(mp, quotamount, quotaflags);
 	if (error)
 		goto error4;
 
@@ -1233,12 +1210,7 @@ xfs_mountfs(
  error3:
 	xfs_log_unmount_dealloc(mp);
  error2:
-	for (agno = 0; agno < sbp->sb_agcount; agno++)
-		if (mp->m_perag[agno].pagb_list)
-			kmem_free(mp->m_perag[agno].pagb_list);
-	kmem_free(mp->m_perag);
-	mp->m_perag = NULL;
-	/* FALLTHROUGH */
+	xfs_free_perag(mp);
  error1:
 	if (uuid_mounted)
 		uuid_table_remove(&mp->m_sb.sb_uuid);
@@ -1246,16 +1218,17 @@ xfs_mountfs(
 }
 
 /*
- * xfs_unmountfs
- *
  * This flushes out the inodes,dquots and the superblock, unmounts the
  * log and makes sure that incore structures are freed.
  */
-int
-xfs_unmountfs(xfs_mount_t *mp)
+void
+xfs_unmountfs(
+	struct xfs_mount	*mp)
 {
-	__uint64_t	resblks;
-	int		error = 0;
+	__uint64_t		resblks;
+	int			error;
+
+	IRELE(mp->m_rootip);
 
 	/*
 	 * We can potentially deadlock here if we have an inode cluster
@@ -1312,8 +1285,6 @@ xfs_unmountfs(xfs_mount_t *mp)
 	xfs_unmountfs_wait(mp); 		/* wait for async bufs */
 	xfs_log_unmount(mp);			/* Done! No more fs ops. */
 
-	xfs_freesb(mp);
-
 	/*
 	 * All inodes from this mount point should be freed.
 	 */
@@ -1322,11 +1293,12 @@ xfs_unmountfs(xfs_mount_t *mp)
 	if ((mp->m_flags & XFS_MOUNT_NOUUID) == 0)
 		uuid_table_remove(&mp->m_sb.sb_uuid);
 
-#if defined(DEBUG) || defined(INDUCE_IO_ERROR)
+#if defined(DEBUG)
 	xfs_errortag_clearall(mp, 0);
 #endif
-	xfs_mount_free(mp);
-	return 0;
+	xfs_free_perag(mp);
+	if (mp->m_quotainfo)
+		XFS_QM_DONE(mp);
 }
 
 STATIC void
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 5269bd6e3df0..f3c1024b1241 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -114,7 +114,7 @@ struct xfs_dqtrxops;
 struct xfs_quotainfo;
 
 typedef int	(*xfs_qminit_t)(struct xfs_mount *, uint *, uint *);
-typedef int	(*xfs_qmmount_t)(struct xfs_mount *, uint, uint, int);
+typedef int	(*xfs_qmmount_t)(struct xfs_mount *, uint, uint);
 typedef int	(*xfs_qmunmount_t)(struct xfs_mount *);
 typedef void	(*xfs_qmdone_t)(struct xfs_mount *);
 typedef void	(*xfs_dqrele_t)(struct xfs_dquot *);
@@ -158,8 +158,8 @@ typedef struct xfs_qmops {
 
 #define XFS_QM_INIT(mp, mnt, fl) \
 	(*(mp)->m_qm_ops->xfs_qminit)(mp, mnt, fl)
-#define XFS_QM_MOUNT(mp, mnt, fl, mfsi_flags) \
-	(*(mp)->m_qm_ops->xfs_qmmount)(mp, mnt, fl, mfsi_flags)
+#define XFS_QM_MOUNT(mp, mnt, fl) \
+	(*(mp)->m_qm_ops->xfs_qmmount)(mp, mnt, fl)
 #define XFS_QM_UNMOUNT(mp) \
 	(*(mp)->m_qm_ops->xfs_qmunmount)(mp)
 #define XFS_QM_DONE(mp) \
@@ -442,13 +442,6 @@ void xfs_do_force_shutdown(struct xfs_mount *mp, int flags, char *fname,
 /*
  * Flags for xfs_mountfs
  */
-#define XFS_MFSI_SECOND		0x01	/* Secondary mount -- skip stuff */
-#define XFS_MFSI_CLIENT		0x02	/* Is a client -- skip lots of stuff */
-/*	XFS_MFSI_RRINODES	*/
-#define XFS_MFSI_NOUNLINK	0x08	/* Skip unlinked inode processing in */
-					/* log recovery */
-#define XFS_MFSI_NO_QUOTACHECK	0x10	/* Skip quotacheck processing */
-/*	XFS_MFSI_CONVERT_SUNIT	*/
 #define XFS_MFSI_QUIET		0x40	/* Be silent if mount errors found */
 
 #define XFS_DADDR_TO_AGNO(mp,d)         xfs_daddr_to_agno(mp,d)
@@ -517,10 +510,10 @@ typedef struct xfs_mod_sb {
 
 extern void	xfs_mod_sb(xfs_trans_t *, __int64_t);
 extern int	xfs_log_sbcount(xfs_mount_t *, uint);
-extern int	xfs_mountfs(xfs_mount_t *mp, int);
+extern int	xfs_mountfs(xfs_mount_t *mp);
 extern void	xfs_mountfs_check_barriers(xfs_mount_t *mp);
 
-extern int	xfs_unmountfs(xfs_mount_t *);
+extern void	xfs_unmountfs(xfs_mount_t *);
 extern int	xfs_unmountfs_writesb(xfs_mount_t *);
 extern int	xfs_unmount_flush(xfs_mount_t *, int);
 extern int	xfs_mod_incore_sb(xfs_mount_t *, xfs_sb_field_t, int64_t, int);
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index bf87a5913504..e2f68de16159 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -74,18 +74,6 @@ STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int,
  */
 
 /*
- * xfs_lowbit32: get low bit set out of 32-bit argument, -1 if none set.
- */
-STATIC int
-xfs_lowbit32(
-	__uint32_t	v)
-{
-	if (v)
-		return ffs(v) - 1;
-	return -1;
-}
-
-/*
  * Allocate space to the bitmap or summary file, and zero it, for growfs.
  */
 STATIC int				/* error */
@@ -450,6 +438,7 @@ xfs_rtallocate_extent_near(
 	}
 	bbno = XFS_BITTOBLOCK(mp, bno);
 	i = 0;
+	ASSERT(minlen != 0);
 	log2len = xfs_highbit32(minlen);
 	/*
 	 * Loop over all bitmap blocks (bbno + i is current block).
@@ -618,6 +607,8 @@ xfs_rtallocate_extent_size(
 	xfs_suminfo_t	sum;		/* summary information for extents */
 
 	ASSERT(minlen % prod == 0 && maxlen % prod == 0);
+	ASSERT(maxlen != 0);
+
 	/*
 	 * Loop over all the levels starting with maxlen.
 	 * At each level, look at all the bitmap blocks, to see if there
@@ -675,6 +666,9 @@ xfs_rtallocate_extent_size(
 		*rtblock = NULLRTBLOCK;
 		return 0;
 	}
+	ASSERT(minlen != 0);
+	ASSERT(maxlen != 0);
+
 	/*
 	 * Loop over sizes, from maxlen down to minlen.
 	 * This time, when we do the allocations, allow smaller ones
@@ -1961,6 +1955,7 @@ xfs_growfs_rt(
 				  nsbp->sb_blocksize * nsbp->sb_rextsize);
 		nsbp->sb_rextents = nsbp->sb_rblocks;
 		do_div(nsbp->sb_rextents, nsbp->sb_rextsize);
+		ASSERT(nsbp->sb_rextents != 0);
 		nsbp->sb_rextslog = xfs_highbit32(nsbp->sb_rextents);
 		nrsumlevels = nmp->m_rsumlevels = nsbp->sb_rextslog + 1;
 		nrsumsize =
diff --git a/fs/xfs/xfs_rw.c b/fs/xfs/xfs_rw.c
index b0f31c09a76d..3a82576dde9a 100644
--- a/fs/xfs/xfs_rw.c
+++ b/fs/xfs/xfs_rw.c
@@ -314,7 +314,7 @@ xfs_bioerror_relse(
 		 * ASYNC buffers.
 		 */
 		XFS_BUF_ERROR(bp, EIO);
-		XFS_BUF_V_IODONESEMA(bp);
+		XFS_BUF_FINISH_IOWAIT(bp);
 	} else {
 		xfs_buf_relse(bp);
 	}
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index e4ebddd3c500..4e1c22a23be5 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -43,6 +43,7 @@
 #include "xfs_quota.h"
 #include "xfs_trans_priv.h"
 #include "xfs_trans_space.h"
+#include "xfs_inode_item.h"
 
 
 STATIC void	xfs_trans_apply_sb_deltas(xfs_trans_t *);
@@ -253,7 +254,7 @@ _xfs_trans_alloc(
 	tp->t_mountp = mp;
 	tp->t_items_free = XFS_LIC_NUM_SLOTS;
 	tp->t_busy_free = XFS_LBC_NUM_SLOTS;
-	XFS_LIC_INIT(&(tp->t_items));
+	xfs_lic_init(&(tp->t_items));
 	XFS_LBC_INIT(&(tp->t_busy));
 	return tp;
 }
@@ -282,7 +283,7 @@ xfs_trans_dup(
 	ntp->t_mountp = tp->t_mountp;
 	ntp->t_items_free = XFS_LIC_NUM_SLOTS;
 	ntp->t_busy_free = XFS_LBC_NUM_SLOTS;
-	XFS_LIC_INIT(&(ntp->t_items));
+	xfs_lic_init(&(ntp->t_items));
 	XFS_LBC_INIT(&(ntp->t_busy));
 
 	ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
@@ -1169,7 +1170,7 @@ xfs_trans_cancel(
 		while (licp != NULL) {
 			lidp = licp->lic_descs;
 			for (i = 0; i < licp->lic_unused; i++, lidp++) {
-				if (XFS_LIC_ISFREE(licp, i)) {
+				if (xfs_lic_isfree(licp, i)) {
 					continue;
 				}
 
@@ -1216,6 +1217,68 @@ xfs_trans_free(
 	kmem_zone_free(xfs_trans_zone, tp);
 }
 
+/*
+ * Roll from one trans in the sequence of PERMANENT transactions to
+ * the next: permanent transactions are only flushed out when
+ * committed with XFS_TRANS_RELEASE_LOG_RES, but we still want as soon
+ * as possible to let chunks of it go to the log. So we commit the
+ * chunk we've been working on and get a new transaction to continue.
+ */
+int
+xfs_trans_roll(
+	struct xfs_trans	**tpp,
+	struct xfs_inode	*dp)
+{
+	struct xfs_trans	*trans;
+	unsigned int		logres, count;
+	int			error;
+
+	/*
+	 * Ensure that the inode is always logged.
+	 */
+	trans = *tpp;
+	xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
+
+	/*
+	 * Copy the critical parameters from one trans to the next.
+	 */
+	logres = trans->t_log_res;
+	count = trans->t_log_count;
+	*tpp = xfs_trans_dup(trans);
+
+	/*
+	 * Commit the current transaction.
+	 * If this commit failed, then it'd just unlock those items that
+	 * are not marked ihold. That also means that a filesystem shutdown
+	 * is in progress. The caller takes the responsibility to cancel
+	 * the duplicate transaction that gets returned.
+	 */
+	error = xfs_trans_commit(trans, 0);
+	if (error)
+		return (error);
+
+	trans = *tpp;
+
+	/*
+	 * Reserve space in the log for th next transaction.
+	 * This also pushes items in the "AIL", the list of logged items,
+	 * out to disk if they are taking up space at the tail of the log
+	 * that we want to use.  This requires that either nothing be locked
+	 * across this call, or that anything that is locked be logged in
+	 * the prior and the next transactions.
+	 */
+	error = xfs_trans_reserve(trans, 0, logres, 0,
+				  XFS_TRANS_PERM_LOG_RES, count);
+	/*
+	 *  Ensure that the inode is in the new transaction and locked.
+	 */
+	if (error)
+		return error;
+
+	xfs_trans_ijoin(trans, dp, XFS_ILOCK_EXCL);
+	xfs_trans_ihold(trans, dp);
+	return 0;
+}
 
 /*
  * THIS SHOULD BE REWRITTEN TO USE xfs_trans_next_item().
@@ -1253,7 +1316,7 @@ xfs_trans_committed(
 	 * Special case the chunk embedded in the transaction.
 	 */
 	licp = &(tp->t_items);
-	if (!(XFS_LIC_ARE_ALL_FREE(licp))) {
+	if (!(xfs_lic_are_all_free(licp))) {
 		xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
 	}
 
@@ -1262,7 +1325,7 @@ xfs_trans_committed(
 	 */
 	licp = licp->lic_next;
 	while (licp != NULL) {
-		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+		ASSERT(!xfs_lic_are_all_free(licp));
 		xfs_trans_chunk_committed(licp, tp->t_lsn, abortflag);
 		next_licp = licp->lic_next;
 		kmem_free(licp);
@@ -1325,7 +1388,7 @@ xfs_trans_chunk_committed(
 
 	lidp = licp->lic_descs;
 	for (i = 0; i < licp->lic_unused; i++, lidp++) {
-		if (XFS_LIC_ISFREE(licp, i)) {
+		if (xfs_lic_isfree(licp, i)) {
 			continue;
 		}
 
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 0804207c7391..74c80bd2b0ec 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -210,62 +210,52 @@ typedef struct xfs_log_item_chunk {
  * lic_unused to the right value (0 matches all free).  The
  * lic_descs.lid_index values are set up as each desc is allocated.
  */
-#define	XFS_LIC_INIT(cp)	xfs_lic_init(cp)
 static inline void xfs_lic_init(xfs_log_item_chunk_t *cp)
 {
 	cp->lic_free = XFS_LIC_FREEMASK;
 }
 
-#define	XFS_LIC_INIT_SLOT(cp,slot)	xfs_lic_init_slot(cp, slot)
 static inline void xfs_lic_init_slot(xfs_log_item_chunk_t *cp, int slot)
 {
 	cp->lic_descs[slot].lid_index = (unsigned char)(slot);
 }
 
-#define	XFS_LIC_VACANCY(cp)		xfs_lic_vacancy(cp)
 static inline int xfs_lic_vacancy(xfs_log_item_chunk_t *cp)
 {
 	return cp->lic_free & XFS_LIC_FREEMASK;
 }
 
-#define	XFS_LIC_ALL_FREE(cp)		xfs_lic_all_free(cp)
 static inline void xfs_lic_all_free(xfs_log_item_chunk_t *cp)
 {
 	cp->lic_free = XFS_LIC_FREEMASK;
 }
 
-#define	XFS_LIC_ARE_ALL_FREE(cp)	xfs_lic_are_all_free(cp)
 static inline int xfs_lic_are_all_free(xfs_log_item_chunk_t *cp)
 {
 	return ((cp->lic_free & XFS_LIC_FREEMASK) == XFS_LIC_FREEMASK);
 }
 
-#define	XFS_LIC_ISFREE(cp,slot)	xfs_lic_isfree(cp,slot)
 static inline int xfs_lic_isfree(xfs_log_item_chunk_t *cp, int slot)
 {
 	return (cp->lic_free & (1 << slot));
 }
 
-#define	XFS_LIC_CLAIM(cp,slot)		xfs_lic_claim(cp,slot)
 static inline void xfs_lic_claim(xfs_log_item_chunk_t *cp, int slot)
 {
 	cp->lic_free &= ~(1 << slot);
 }
 
-#define	XFS_LIC_RELSE(cp,slot)		xfs_lic_relse(cp,slot)
 static inline void xfs_lic_relse(xfs_log_item_chunk_t *cp, int slot)
 {
 	cp->lic_free |= 1 << slot;
 }
 
-#define	XFS_LIC_SLOT(cp,slot)		xfs_lic_slot(cp,slot)
 static inline xfs_log_item_desc_t *
 xfs_lic_slot(xfs_log_item_chunk_t *cp, int slot)
 {
 	return &(cp->lic_descs[slot]);
 }
 
-#define	XFS_LIC_DESC_TO_SLOT(dp)	xfs_lic_desc_to_slot(dp)
 static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
 {
 	return (uint)dp->lid_index;
@@ -278,7 +268,6 @@ static inline int xfs_lic_desc_to_slot(xfs_log_item_desc_t *dp)
  * All of this yields the address of the chunk, which is
  * cast to a chunk pointer.
  */
-#define	XFS_LIC_DESC_TO_CHUNK(dp)	xfs_lic_desc_to_chunk(dp)
 static inline xfs_log_item_chunk_t *
 xfs_lic_desc_to_chunk(xfs_log_item_desc_t *dp)
 {
@@ -986,6 +975,7 @@ int		_xfs_trans_commit(xfs_trans_t *,
 				  int *);
 #define xfs_trans_commit(tp, flags)	_xfs_trans_commit(tp, flags, NULL)
 void		xfs_trans_cancel(xfs_trans_t *, int);
+int		xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
 int		xfs_trans_ail_init(struct xfs_mount *);
 void		xfs_trans_ail_destroy(struct xfs_mount *);
 void		xfs_trans_push_ail(struct xfs_mount *, xfs_lsn_t);
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index cb0c5839154b..4e855b5ced66 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -1021,16 +1021,16 @@ xfs_trans_buf_item_match(
 	bp = NULL;
 	len = BBTOB(len);
 	licp = &tp->t_items;
-	if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+	if (!xfs_lic_are_all_free(licp)) {
 		for (i = 0; i < licp->lic_unused; i++) {
 			/*
 			 * Skip unoccupied slots.
 			 */
-			if (XFS_LIC_ISFREE(licp, i)) {
+			if (xfs_lic_isfree(licp, i)) {
 				continue;
 			}
 
-			lidp = XFS_LIC_SLOT(licp, i);
+			lidp = xfs_lic_slot(licp, i);
 			blip = (xfs_buf_log_item_t *)lidp->lid_item;
 			if (blip->bli_item.li_type != XFS_LI_BUF) {
 				continue;
@@ -1074,7 +1074,7 @@ xfs_trans_buf_item_match_all(
 	bp = NULL;
 	len = BBTOB(len);
 	for (licp = &tp->t_items; licp != NULL; licp = licp->lic_next) {
-		if (XFS_LIC_ARE_ALL_FREE(licp)) {
+		if (xfs_lic_are_all_free(licp)) {
 			ASSERT(licp == &tp->t_items);
 			ASSERT(licp->lic_next == NULL);
 			return NULL;
@@ -1083,11 +1083,11 @@ xfs_trans_buf_item_match_all(
 			/*
 			 * Skip unoccupied slots.
 			 */
-			if (XFS_LIC_ISFREE(licp, i)) {
+			if (xfs_lic_isfree(licp, i)) {
 				continue;
 			}
 
-			lidp = XFS_LIC_SLOT(licp, i);
+			lidp = xfs_lic_slot(licp, i);
 			blip = (xfs_buf_log_item_t *)lidp->lid_item;
 			if (blip->bli_item.li_type != XFS_LI_BUF) {
 				continue;
diff --git a/fs/xfs/xfs_trans_item.c b/fs/xfs/xfs_trans_item.c
index db5c83595526..3c666e8317f8 100644
--- a/fs/xfs/xfs_trans_item.c
+++ b/fs/xfs/xfs_trans_item.c
@@ -53,11 +53,11 @@ xfs_trans_add_item(xfs_trans_t *tp, xfs_log_item_t *lip)
 		 * Initialize the chunk, and then
 		 * claim the first slot in the newly allocated chunk.
 		 */
-		XFS_LIC_INIT(licp);
-		XFS_LIC_CLAIM(licp, 0);
+		xfs_lic_init(licp);
+		xfs_lic_claim(licp, 0);
 		licp->lic_unused = 1;
-		XFS_LIC_INIT_SLOT(licp, 0);
-		lidp = XFS_LIC_SLOT(licp, 0);
+		xfs_lic_init_slot(licp, 0);
+		lidp = xfs_lic_slot(licp, 0);
 
 		/*
 		 * Link in the new chunk and update the free count.
@@ -88,14 +88,14 @@ xfs_trans_add_item(xfs_trans_t *tp, xfs_log_item_t *lip)
 	 */
 	licp = &tp->t_items;
 	while (licp != NULL) {
-		if (XFS_LIC_VACANCY(licp)) {
+		if (xfs_lic_vacancy(licp)) {
 			if (licp->lic_unused <= XFS_LIC_MAX_SLOT) {
 				i = licp->lic_unused;
-				ASSERT(XFS_LIC_ISFREE(licp, i));
+				ASSERT(xfs_lic_isfree(licp, i));
 				break;
 			}
 			for (i = 0; i <= XFS_LIC_MAX_SLOT; i++) {
-				if (XFS_LIC_ISFREE(licp, i))
+				if (xfs_lic_isfree(licp, i))
 					break;
 			}
 			ASSERT(i <= XFS_LIC_MAX_SLOT);
@@ -108,12 +108,12 @@ xfs_trans_add_item(xfs_trans_t *tp, xfs_log_item_t *lip)
 	 * If we find a free descriptor, claim it,
 	 * initialize it, and return it.
 	 */
-	XFS_LIC_CLAIM(licp, i);
+	xfs_lic_claim(licp, i);
 	if (licp->lic_unused <= i) {
 		licp->lic_unused = i + 1;
-		XFS_LIC_INIT_SLOT(licp, i);
+		xfs_lic_init_slot(licp, i);
 	}
-	lidp = XFS_LIC_SLOT(licp, i);
+	lidp = xfs_lic_slot(licp, i);
 	tp->t_items_free--;
 	lidp->lid_item = lip;
 	lidp->lid_flags = 0;
@@ -136,9 +136,9 @@ xfs_trans_free_item(xfs_trans_t	*tp, xfs_log_item_desc_t *lidp)
 	xfs_log_item_chunk_t	*licp;
 	xfs_log_item_chunk_t	**licpp;
 
-	slot = XFS_LIC_DESC_TO_SLOT(lidp);
-	licp = XFS_LIC_DESC_TO_CHUNK(lidp);
-	XFS_LIC_RELSE(licp, slot);
+	slot = xfs_lic_desc_to_slot(lidp);
+	licp = xfs_lic_desc_to_chunk(lidp);
+	xfs_lic_relse(licp, slot);
 	lidp->lid_item->li_desc = NULL;
 	tp->t_items_free++;
 
@@ -154,7 +154,7 @@ xfs_trans_free_item(xfs_trans_t	*tp, xfs_log_item_desc_t *lidp)
 	 * Also decrement the transaction structure's count of free items
 	 * by the number in a chunk since we are freeing an empty chunk.
 	 */
-	if (XFS_LIC_ARE_ALL_FREE(licp) && (licp != &(tp->t_items))) {
+	if (xfs_lic_are_all_free(licp) && (licp != &(tp->t_items))) {
 		licpp = &(tp->t_items.lic_next);
 		while (*licpp != licp) {
 			ASSERT(*licpp != NULL);
@@ -207,20 +207,20 @@ xfs_trans_first_item(xfs_trans_t *tp)
 	/*
 	 * If it's not in the first chunk, skip to the second.
 	 */
-	if (XFS_LIC_ARE_ALL_FREE(licp)) {
+	if (xfs_lic_are_all_free(licp)) {
 		licp = licp->lic_next;
 	}
 
 	/*
 	 * Return the first non-free descriptor in the chunk.
 	 */
-	ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+	ASSERT(!xfs_lic_are_all_free(licp));
 	for (i = 0; i < licp->lic_unused; i++) {
-		if (XFS_LIC_ISFREE(licp, i)) {
+		if (xfs_lic_isfree(licp, i)) {
 			continue;
 		}
 
-		return XFS_LIC_SLOT(licp, i);
+		return xfs_lic_slot(licp, i);
 	}
 	cmn_err(CE_WARN, "xfs_trans_first_item() -- no first item");
 	return NULL;
@@ -242,18 +242,18 @@ xfs_trans_next_item(xfs_trans_t *tp, xfs_log_item_desc_t *lidp)
 	xfs_log_item_chunk_t	*licp;
 	int			i;
 
-	licp = XFS_LIC_DESC_TO_CHUNK(lidp);
+	licp = xfs_lic_desc_to_chunk(lidp);
 
 	/*
 	 * First search the rest of the chunk. The for loop keeps us
 	 * from referencing things beyond the end of the chunk.
 	 */
-	for (i = (int)XFS_LIC_DESC_TO_SLOT(lidp) + 1; i < licp->lic_unused; i++) {
-		if (XFS_LIC_ISFREE(licp, i)) {
+	for (i = (int)xfs_lic_desc_to_slot(lidp) + 1; i < licp->lic_unused; i++) {
+		if (xfs_lic_isfree(licp, i)) {
 			continue;
 		}
 
-		return XFS_LIC_SLOT(licp, i);
+		return xfs_lic_slot(licp, i);
 	}
 
 	/*
@@ -266,13 +266,13 @@ xfs_trans_next_item(xfs_trans_t *tp, xfs_log_item_desc_t *lidp)
 	}
 
 	licp = licp->lic_next;
-	ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+	ASSERT(!xfs_lic_are_all_free(licp));
 	for (i = 0; i < licp->lic_unused; i++) {
-		if (XFS_LIC_ISFREE(licp, i)) {
+		if (xfs_lic_isfree(licp, i)) {
 			continue;
 		}
 
-		return XFS_LIC_SLOT(licp, i);
+		return xfs_lic_slot(licp, i);
 	}
 	ASSERT(0);
 	/* NOTREACHED */
@@ -300,9 +300,9 @@ xfs_trans_free_items(
 	/*
 	 * Special case the embedded chunk so we don't free it below.
 	 */
-	if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+	if (!xfs_lic_are_all_free(licp)) {
 		(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
-		XFS_LIC_ALL_FREE(licp);
+		xfs_lic_all_free(licp);
 		licp->lic_unused = 0;
 	}
 	licp = licp->lic_next;
@@ -311,7 +311,7 @@ xfs_trans_free_items(
 	 * Unlock each item in each chunk and free the chunks.
 	 */
 	while (licp != NULL) {
-		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+		ASSERT(!xfs_lic_are_all_free(licp));
 		(void) xfs_trans_unlock_chunk(licp, 1, abort, NULLCOMMITLSN);
 		next_licp = licp->lic_next;
 		kmem_free(licp);
@@ -347,7 +347,7 @@ xfs_trans_unlock_items(xfs_trans_t *tp, xfs_lsn_t commit_lsn)
 	/*
 	 * Special case the embedded chunk so we don't free.
 	 */
-	if (!XFS_LIC_ARE_ALL_FREE(licp)) {
+	if (!xfs_lic_are_all_free(licp)) {
 		freed = xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
 	}
 	licpp = &(tp->t_items.lic_next);
@@ -358,10 +358,10 @@ xfs_trans_unlock_items(xfs_trans_t *tp, xfs_lsn_t commit_lsn)
 	 * and free empty chunks.
 	 */
 	while (licp != NULL) {
-		ASSERT(!XFS_LIC_ARE_ALL_FREE(licp));
+		ASSERT(!xfs_lic_are_all_free(licp));
 		freed += xfs_trans_unlock_chunk(licp, 0, 0, commit_lsn);
 		next_licp = licp->lic_next;
-		if (XFS_LIC_ARE_ALL_FREE(licp)) {
+		if (xfs_lic_are_all_free(licp)) {
 			*licpp = next_licp;
 			kmem_free(licp);
 			freed -= XFS_LIC_NUM_SLOTS;
@@ -402,7 +402,7 @@ xfs_trans_unlock_chunk(
 	freed = 0;
 	lidp = licp->lic_descs;
 	for (i = 0; i < licp->lic_unused; i++, lidp++) {
-		if (XFS_LIC_ISFREE(licp, i)) {
+		if (xfs_lic_isfree(licp, i)) {
 			continue;
 		}
 		lip = lidp->lid_item;
@@ -421,7 +421,7 @@ xfs_trans_unlock_chunk(
 		 */
 		if (!(freeing_chunk) &&
 		    (!(lidp->lid_flags & XFS_LID_DIRTY) || abort)) {
-			XFS_LIC_RELSE(licp, i);
+			xfs_lic_relse(licp, i);
 			freed++;
 		}
 	}
diff --git a/fs/xfs/xfs_utils.c b/fs/xfs/xfs_utils.c
index 98e5f110ba5f..35d4d414bcc2 100644
--- a/fs/xfs/xfs_utils.c
+++ b/fs/xfs/xfs_utils.c
@@ -237,7 +237,7 @@ xfs_droplink(
 
 	ASSERT (ip->i_d.di_nlink > 0);
 	ip->i_d.di_nlink--;
-	drop_nlink(ip->i_vnode);
+	drop_nlink(VFS_I(ip));
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
 	error = 0;
@@ -301,7 +301,7 @@ xfs_bumplink(
 
 	ASSERT(ip->i_d.di_nlink > 0);
 	ip->i_d.di_nlink++;
-	inc_nlink(ip->i_vnode);
+	inc_nlink(VFS_I(ip));
 	if ((ip->i_d.di_version == XFS_DINODE_VERSION_1) &&
 	    (ip->i_d.di_nlink > XFS_MAXLINK_1)) {
 		/*
diff --git a/fs/xfs/xfs_utils.h b/fs/xfs/xfs_utils.h
index f316cb85d8e2..ef321225d269 100644
--- a/fs/xfs/xfs_utils.h
+++ b/fs/xfs/xfs_utils.h
@@ -18,9 +18,6 @@
 #ifndef __XFS_UTILS_H__
 #define __XFS_UTILS_H__
 
-#define IRELE(ip)	VN_RELE(XFS_ITOV(ip))
-#define IHOLD(ip)	VN_HOLD(XFS_ITOV(ip))
-
 extern int xfs_truncate_file(xfs_mount_t *, xfs_inode_t *);
 extern int xfs_dir_ialloc(xfs_trans_t **, xfs_inode_t *, mode_t, xfs_nlink_t,
 				xfs_dev_t, cred_t *, prid_t, int,
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index 4a9a43315a86..439dd3939dda 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -128,7 +128,6 @@ xfs_unmount_flush(
 	xfs_inode_t	*rip = mp->m_rootip;
 	xfs_inode_t	*rbmip;
 	xfs_inode_t	*rsumip = NULL;
-	bhv_vnode_t	*rvp = XFS_ITOV(rip);
 	int		error;
 
 	xfs_ilock(rip, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
@@ -146,7 +145,7 @@ xfs_unmount_flush(
 		if (error == EFSCORRUPTED)
 			goto fscorrupt_out;
 
-		ASSERT(vn_count(XFS_ITOV(rbmip)) == 1);
+		ASSERT(vn_count(VFS_I(rbmip)) == 1);
 
 		rsumip = mp->m_rsumip;
 		xfs_ilock(rsumip, XFS_ILOCK_EXCL);
@@ -157,7 +156,7 @@ xfs_unmount_flush(
 		if (error == EFSCORRUPTED)
 			goto fscorrupt_out;
 
-		ASSERT(vn_count(XFS_ITOV(rsumip)) == 1);
+		ASSERT(vn_count(VFS_I(rsumip)) == 1);
 	}
 
 	/*
@@ -167,7 +166,7 @@ xfs_unmount_flush(
 	if (error == EFSCORRUPTED)
 		goto fscorrupt_out2;
 
-	if (vn_count(rvp) != 1 && !relocation) {
+	if (vn_count(VFS_I(rip)) != 1 && !relocation) {
 		xfs_iunlock(rip, XFS_ILOCK_EXCL);
 		return XFS_ERROR(EBUSY);
 	}
@@ -284,7 +283,7 @@ xfs_sync_inodes(
 	int             *bypassed)
 {
 	xfs_inode_t	*ip = NULL;
-	bhv_vnode_t	*vp = NULL;
+	struct inode	*vp = NULL;
 	int		error;
 	int		last_error;
 	uint64_t	fflag;
@@ -404,7 +403,7 @@ xfs_sync_inodes(
 			continue;
 		}
 
-		vp = XFS_ITOV_NULL(ip);
+		vp = VFS_I(ip);
 
 		/*
 		 * If the vnode is gone then this is being torn down,
@@ -479,7 +478,7 @@ xfs_sync_inodes(
 			IPOINTER_INSERT(ip, mp);
 			xfs_ilock(ip, lock_flags);
 
-			ASSERT(vp == XFS_ITOV(ip));
+			ASSERT(vp == VFS_I(ip));
 			ASSERT(ip->i_mount == mp);
 
 			vnode_refed = B_TRUE;
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 76a1166af822..aa238c8fbd7a 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -83,7 +83,7 @@ xfs_setattr(
 	cred_t			*credp)
 {
 	xfs_mount_t		*mp = ip->i_mount;
-	struct inode		*inode = XFS_ITOV(ip);
+	struct inode		*inode = VFS_I(ip);
 	int			mask = iattr->ia_valid;
 	xfs_trans_t		*tp;
 	int			code;
@@ -182,7 +182,7 @@ xfs_setattr(
 	xfs_ilock(ip, lock_flags);
 
 	/* boolean: are we the file owner? */
-	file_owner = (current_fsuid(credp) == ip->i_d.di_uid);
+	file_owner = (current_fsuid() == ip->i_d.di_uid);
 
 	/*
 	 * Change various properties of a file.
@@ -513,7 +513,6 @@ xfs_setattr(
 			ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec;
 			ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec;
 			ip->i_update_core = 1;
-			timeflags &= ~XFS_ICHGTIME_ACC;
 		}
 		if (mask & ATTR_MTIME) {
 			inode->i_mtime = iattr->ia_mtime;
@@ -714,7 +713,7 @@ xfs_fsync(
 		return XFS_ERROR(EIO);
 
 	/* capture size updates in I/O completion before writing the inode. */
-	error = filemap_fdatawait(vn_to_inode(XFS_ITOV(ip))->i_mapping);
+	error = filemap_fdatawait(VFS_I(ip)->i_mapping);
 	if (error)
 		return XFS_ERROR(error);
 
@@ -1160,7 +1159,6 @@ int
 xfs_release(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
 	xfs_mount_t	*mp = ip->i_mount;
 	int		error;
 
@@ -1195,13 +1193,13 @@ xfs_release(
 		 * be exposed to that problem.
 		 */
 		truncated = xfs_iflags_test_and_clear(ip, XFS_ITRUNCATED);
-		if (truncated && VN_DIRTY(vp) && ip->i_delayed_blks > 0)
+		if (truncated && VN_DIRTY(VFS_I(ip)) && ip->i_delayed_blks > 0)
 			xfs_flush_pages(ip, 0, -1, XFS_B_ASYNC, FI_NONE);
 	}
 
 	if (ip->i_d.di_nlink != 0) {
 		if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
-		     ((ip->i_size > 0) || (VN_CACHED(vp) > 0 ||
+		     ((ip->i_size > 0) || (VN_CACHED(VFS_I(ip)) > 0 ||
 		       ip->i_delayed_blks > 0)) &&
 		     (ip->i_df.if_flags & XFS_IFEXTENTS))  &&
 		    (!(ip->i_d.di_flags &
@@ -1227,7 +1225,6 @@ int
 xfs_inactive(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
 	xfs_bmap_free_t	free_list;
 	xfs_fsblock_t	first_block;
 	int		committed;
@@ -1242,7 +1239,7 @@ xfs_inactive(
 	 * If the inode is already free, then there can be nothing
 	 * to clean up here.
 	 */
-	if (ip->i_d.di_mode == 0 || VN_BAD(vp)) {
+	if (ip->i_d.di_mode == 0 || VN_BAD(VFS_I(ip))) {
 		ASSERT(ip->i_df.if_real_bytes == 0);
 		ASSERT(ip->i_df.if_broot_bytes == 0);
 		return VN_INACTIVE_CACHE;
@@ -1272,7 +1269,7 @@ xfs_inactive(
 
 	if (ip->i_d.di_nlink != 0) {
 		if ((((ip->i_d.di_mode & S_IFMT) == S_IFREG) &&
-                     ((ip->i_size > 0) || (VN_CACHED(vp) > 0 ||
+                     ((ip->i_size > 0) || (VN_CACHED(VFS_I(ip)) > 0 ||
                        ip->i_delayed_blks > 0)) &&
 		      (ip->i_df.if_flags & XFS_IFEXTENTS) &&
 		     (!(ip->i_d.di_flags &
@@ -1536,7 +1533,7 @@ xfs_create(
 	 * Make sure that we have allocated dquot(s) on disk.
 	 */
 	error = XFS_QM_DQVOPALLOC(mp, dp,
-			current_fsuid(credp), current_fsgid(credp), prid,
+			current_fsuid(), current_fsgid(), prid,
 			XFS_QMOPT_QUOTALL|XFS_QMOPT_INHERIT, &udqp, &gdqp);
 	if (error)
 		goto std_return;
@@ -1708,111 +1705,6 @@ std_return:
 }
 
 #ifdef DEBUG
-/*
- * Some counters to see if (and how often) we are hitting some deadlock
- * prevention code paths.
- */
-
-int xfs_rm_locks;
-int xfs_rm_lock_delays;
-int xfs_rm_attempts;
-#endif
-
-/*
- * The following routine will lock the inodes associated with the
- * directory and the named entry in the directory. The locks are
- * acquired in increasing inode number.
- *
- * If the entry is "..", then only the directory is locked. The
- * vnode ref count will still include that from the .. entry in
- * this case.
- *
- * There is a deadlock we need to worry about. If the locked directory is
- * in the AIL, it might be blocking up the log. The next inode we lock
- * could be already locked by another thread waiting for log space (e.g
- * a permanent log reservation with a long running transaction (see
- * xfs_itruncate_finish)). To solve this, we must check if the directory
- * is in the ail and use lock_nowait. If we can't lock, we need to
- * drop the inode lock on the directory and try again. xfs_iunlock will
- * potentially push the tail if we were holding up the log.
- */
-STATIC int
-xfs_lock_dir_and_entry(
-	xfs_inode_t	*dp,
-	xfs_inode_t	*ip)	/* inode of entry 'name' */
-{
-	int		attempts;
-	xfs_ino_t	e_inum;
-	xfs_inode_t	*ips[2];
-	xfs_log_item_t	*lp;
-
-#ifdef DEBUG
-	xfs_rm_locks++;
-#endif
-	attempts = 0;
-
-again:
-	xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
-
-	e_inum = ip->i_ino;
-
-	xfs_itrace_ref(ip);
-
-	/*
-	 * We want to lock in increasing inum. Since we've already
-	 * acquired the lock on the directory, we may need to release
-	 * if if the inum of the entry turns out to be less.
-	 */
-	if (e_inum > dp->i_ino) {
-		/*
-		 * We are already in the right order, so just
-		 * lock on the inode of the entry.
-		 * We need to use nowait if dp is in the AIL.
-		 */
-
-		lp = (xfs_log_item_t *)dp->i_itemp;
-		if (lp && (lp->li_flags & XFS_LI_IN_AIL)) {
-			if (!xfs_ilock_nowait(ip, XFS_ILOCK_EXCL)) {
-				attempts++;
-#ifdef DEBUG
-				xfs_rm_attempts++;
-#endif
-
-				/*
-				 * Unlock dp and try again.
-				 * xfs_iunlock will try to push the tail
-				 * if the inode is in the AIL.
-				 */
-
-				xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
-				if ((attempts % 5) == 0) {
-					delay(1); /* Don't just spin the CPU */
-#ifdef DEBUG
-					xfs_rm_lock_delays++;
-#endif
-				}
-				goto again;
-			}
-		} else {
-			xfs_ilock(ip, XFS_ILOCK_EXCL);
-		}
-	} else if (e_inum < dp->i_ino) {
-		xfs_iunlock(dp, XFS_ILOCK_EXCL);
-
-		ips[0] = ip;
-		ips[1] = dp;
-		xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
-	}
-	/* else	 e_inum == dp->i_ino */
-	/*     This can happen if we're asked to lock /x/..
-	 *     the entry is "..", which is also the parent directory.
-	 */
-
-	return 0;
-}
-
-#ifdef DEBUG
 int xfs_locked_n;
 int xfs_small_retries;
 int xfs_middle_retries;
@@ -1946,6 +1838,45 @@ again:
 #endif
 }
 
+void
+xfs_lock_two_inodes(
+	xfs_inode_t		*ip0,
+	xfs_inode_t		*ip1,
+	uint			lock_mode)
+{
+	xfs_inode_t		*temp;
+	int			attempts = 0;
+	xfs_log_item_t		*lp;
+
+	ASSERT(ip0->i_ino != ip1->i_ino);
+
+	if (ip0->i_ino > ip1->i_ino) {
+		temp = ip0;
+		ip0 = ip1;
+		ip1 = temp;
+	}
+
+ again:
+	xfs_ilock(ip0, xfs_lock_inumorder(lock_mode, 0));
+
+	/*
+	 * If the first lock we have locked is in the AIL, we must TRY to get
+	 * the second lock. If we can't get it, we must release the first one
+	 * and try again.
+	 */
+	lp = (xfs_log_item_t *)ip0->i_itemp;
+	if (lp && (lp->li_flags & XFS_LI_IN_AIL)) {
+		if (!xfs_ilock_nowait(ip1, xfs_lock_inumorder(lock_mode, 1))) {
+			xfs_iunlock(ip0, lock_mode);
+			if ((++attempts % 5) == 0)
+				delay(1); /* Don't just spin the CPU */
+			goto again;
+		}
+	} else {
+		xfs_ilock(ip1, xfs_lock_inumorder(lock_mode, 1));
+	}
+}
+
 int
 xfs_remove(
 	xfs_inode_t             *dp,
@@ -2018,9 +1949,7 @@ xfs_remove(
 		goto out_trans_cancel;
 	}
 
-	error = xfs_lock_dir_and_entry(dp, ip);
-	if (error)
-		goto out_trans_cancel;
+	xfs_lock_two_inodes(dp, ip, XFS_ILOCK_EXCL);
 
 	/*
 	 * At this point, we've gotten both the directory and the entry
@@ -2047,9 +1976,6 @@ xfs_remove(
 		}
 	}
 
-	/*
-	 * Entry must exist since we did a lookup in xfs_lock_dir_and_entry.
-	 */
 	XFS_BMAP_INIT(&free_list, &first_block);
 	error = xfs_dir_removename(tp, dp, name, ip->i_ino,
 					&first_block, &free_list, resblks);
@@ -2155,7 +2081,6 @@ xfs_link(
 {
 	xfs_mount_t		*mp = tdp->i_mount;
 	xfs_trans_t		*tp;
-	xfs_inode_t		*ips[2];
 	int			error;
 	xfs_bmap_free_t         free_list;
 	xfs_fsblock_t           first_block;
@@ -2203,15 +2128,7 @@ xfs_link(
 		goto error_return;
 	}
 
-	if (sip->i_ino < tdp->i_ino) {
-		ips[0] = sip;
-		ips[1] = tdp;
-	} else {
-		ips[0] = tdp;
-		ips[1] = sip;
-	}
-
-	xfs_lock_inodes(ips, 2, XFS_ILOCK_EXCL);
+	xfs_lock_two_inodes(sip, tdp, XFS_ILOCK_EXCL);
 
 	/*
 	 * Increment vnode ref counts since xfs_trans_commit &
@@ -2352,7 +2269,7 @@ xfs_mkdir(
 	 * Make sure that we have allocated dquot(s) on disk.
 	 */
 	error = XFS_QM_DQVOPALLOC(mp, dp,
-			current_fsuid(credp), current_fsgid(credp), prid,
+			current_fsuid(), current_fsgid(), prid,
 			XFS_QMOPT_QUOTALL | XFS_QMOPT_INHERIT, &udqp, &gdqp);
 	if (error)
 		goto std_return;
@@ -2578,7 +2495,7 @@ xfs_symlink(
 	 * Make sure that we have allocated dquot(s) on disk.
 	 */
 	error = XFS_QM_DQVOPALLOC(mp, dp,
-			current_fsuid(credp), current_fsgid(credp), prid,
+			current_fsuid(), current_fsgid(), prid,
 			XFS_QMOPT_QUOTALL | XFS_QMOPT_INHERIT, &udqp, &gdqp);
 	if (error)
 		goto std_return;
@@ -2873,14 +2790,13 @@ int
 xfs_reclaim(
 	xfs_inode_t	*ip)
 {
-	bhv_vnode_t	*vp = XFS_ITOV(ip);
 
 	xfs_itrace_entry(ip);
 
-	ASSERT(!VN_MAPPED(vp));
+	ASSERT(!VN_MAPPED(VFS_I(ip)));
 
 	/* bad inode, get out here ASAP */
-	if (VN_BAD(vp)) {
+	if (VN_BAD(VFS_I(ip))) {
 		xfs_ireclaim(ip);
 		return 0;
 	}
@@ -2917,7 +2833,7 @@ xfs_reclaim(
 		XFS_MOUNT_ILOCK(mp);
 		spin_lock(&ip->i_flags_lock);
 		__xfs_iflags_set(ip, XFS_IRECLAIMABLE);
-		vn_to_inode(vp)->i_private = NULL;
+		VFS_I(ip)->i_private = NULL;
 		ip->i_vnode = NULL;
 		spin_unlock(&ip->i_flags_lock);
 		list_add_tail(&ip->i_reclaim, &mp->m_del_inodes);
@@ -2933,7 +2849,7 @@ xfs_finish_reclaim(
 	int		sync_mode)
 {
 	xfs_perag_t	*pag = xfs_get_perag(ip->i_mount, ip->i_ino);
-	bhv_vnode_t	*vp = XFS_ITOV_NULL(ip);
+	struct inode	*vp = VFS_I(ip);
 
 	if (vp && VN_BAD(vp))
 		goto reclaim;
@@ -3321,7 +3237,6 @@ xfs_free_file_space(
 	xfs_off_t		len,
 	int			attr_flags)
 {
-	bhv_vnode_t		*vp;
 	int			committed;
 	int			done;
 	xfs_off_t		end_dmi_offset;
@@ -3341,7 +3256,6 @@ xfs_free_file_space(
 	xfs_trans_t		*tp;
 	int			need_iolock = 1;
 
-	vp = XFS_ITOV(ip);
 	mp = ip->i_mount;
 
 	xfs_itrace_entry(ip);
@@ -3378,7 +3292,7 @@ xfs_free_file_space(
 	rounding = max_t(uint, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE);
 	ioffset = offset & ~(rounding - 1);
 
-	if (VN_CACHED(vp) != 0) {
+	if (VN_CACHED(VFS_I(ip)) != 0) {
 		xfs_inval_cached_trace(ip, ioffset, -1, ioffset, -1);
 		error = xfs_flushinval_pages(ip, ioffset, -1, FI_REMAPF_LOCKED);
 		if (error)