Merge branch 'samsung/dt' into next/dt

* samsung/dt: (3 commit)
  Merge branch 'depends/rmk/for-linus' into samsung/dt
  Merge branch 'depends/rmk/restart' into next/cleanup
  Merge branch 'next/cleanup' into samsung/dt

Conflicts:
	arch/arm/mach-tegra/board-dt.c
	arch/arm/mach-tegra/include/mach/entry-macro.S

The latest version of the samsung/dt branch resolves
all sorts of conflicts with the latest upstream, no functional
changes that are not already there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

13 files changed, 112 insertions, 98 deletions

diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index cb97174e2366..0b394580d860 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -563,8 +563,8 @@ static struct btrfs_worker_thread *find_worker(struct btrfs_workers *workers)
 	struct list_head *fallback;
 	int ret;
 
-again:
 	spin_lock_irqsave(&workers->lock, flags);
+again:
 	worker = next_worker(workers);
 
 	if (!worker) {
@@ -579,6 +579,7 @@ again:
 			spin_unlock_irqrestore(&workers->lock, flags);
 			/* we're below the limit, start another worker */
 			ret = __btrfs_start_workers(workers);
+			spin_lock_irqsave(&workers->lock, flags);
 			if (ret)
 				goto fallback;
 			goto again;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0a6b928813a4..fd1a06df5bc6 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4590,10 +4590,6 @@ static int btrfs_add_nondir(struct btrfs_trans_handle *trans,
 	int err = btrfs_add_link(trans, dir, inode,
 				 dentry->d_name.name, dentry->d_name.len,
 				 backref, index);
-	if (!err) {
-		d_instantiate(dentry, inode);
-		return 0;
-	}
 	if (err > 0)
 		err = -EEXIST;
 	return err;
@@ -4655,6 +4651,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
 	else {
 		init_special_inode(inode, inode->i_mode, rdev);
 		btrfs_update_inode(trans, root, inode);
+		d_instantiate(dentry, inode);
 	}
 out_unlock:
 	nr = trans->blocks_used;
@@ -4722,6 +4719,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
 		inode->i_mapping->a_ops = &btrfs_aops;
 		inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
 		BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
+		d_instantiate(dentry, inode);
 	}
 out_unlock:
 	nr = trans->blocks_used;
@@ -4779,6 +4777,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
 		struct dentry *parent = dentry->d_parent;
 		err = btrfs_update_inode(trans, root, inode);
 		BUG_ON(err);
+		d_instantiate(dentry, inode);
 		btrfs_log_new_name(trans, inode, NULL, parent);
 	}
 
@@ -7245,6 +7244,8 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
 		drop_inode = 1;
 
 out_unlock:
+	if (!err)
+		d_instantiate(dentry, inode);
 	nr = trans->blocks_used;
 	btrfs_end_transaction_throttle(trans, root);
 	if (drop_inode) {
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 3eeb97661262..98954003a8d3 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1094,42 +1094,19 @@ static int ceph_snapdir_d_revalidate(struct dentry *dentry,
 /*
  * Set/clear/test dir complete flag on the dir's dentry.
  */
-static struct dentry * __d_find_any_alias(struct inode *inode)
-{
-	struct dentry *alias;
-
-	if (list_empty(&inode->i_dentry))
-		return NULL;
-	alias = list_first_entry(&inode->i_dentry, struct dentry, d_alias);
-	return alias;
-}
-
 void ceph_dir_set_complete(struct inode *inode)
 {
-	struct dentry *dentry = __d_find_any_alias(inode);
-	
-	if (dentry && ceph_dentry(dentry)) {
-		dout(" marking %p (%p) complete\n", inode, dentry);
-		set_bit(CEPH_D_COMPLETE, &ceph_dentry(dentry)->flags);
-	}
+	/* not yet implemented */
 }
 
 void ceph_dir_clear_complete(struct inode *inode)
 {
-	struct dentry *dentry = __d_find_any_alias(inode);
-
-	if (dentry && ceph_dentry(dentry)) {
-		dout(" marking %p (%p) NOT complete\n", inode, dentry);
-		clear_bit(CEPH_D_COMPLETE, &ceph_dentry(dentry)->flags);
-	}
+	/* not yet implemented */
 }
 
 bool ceph_dir_test_complete(struct inode *inode)
 {
-	struct dentry *dentry = __d_find_any_alias(inode);
-
-	if (dentry && ceph_dentry(dentry))
-		return test_bit(CEPH_D_COMPLETE, &ceph_dentry(dentry)->flags);
+	/* not yet implemented */
 	return false;
 }
 
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index ac86f8b3e3cb..517f211a3bd4 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -47,17 +47,6 @@ struct wb_writeback_work {
 	struct completion *done;	/* set if the caller waits */
 };
 
-const char *wb_reason_name[] = {
-	[WB_REASON_BACKGROUND]		= "background",
-	[WB_REASON_TRY_TO_FREE_PAGES]	= "try_to_free_pages",
-	[WB_REASON_SYNC]		= "sync",
-	[WB_REASON_PERIODIC]		= "periodic",
-	[WB_REASON_LAPTOP_TIMER]	= "laptop_timer",
-	[WB_REASON_FREE_MORE_MEM]	= "free_more_memory",
-	[WB_REASON_FS_FREE_SPACE]	= "fs_free_space",
-	[WB_REASON_FORKER_THREAD]	= "forker_thread"
-};
-
 /*
  * Include the creation of the trace points after defining the
  * wb_writeback_work structure so that the definition remains local to this
diff --git a/fs/locks.c b/fs/locks.c
index 3b0d05dcd7c1..637694bf3a03 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1205,6 +1205,8 @@ int __break_lease(struct inode *inode, unsigned int mode)
 	int want_write = (mode & O_ACCMODE) != O_RDONLY;
 
 	new_fl = lease_alloc(NULL, want_write ? F_WRLCK : F_RDLCK);
+	if (IS_ERR(new_fl))
+		return PTR_ERR(new_fl);
 
 	lock_flocks();
 
@@ -1221,12 +1223,6 @@ int __break_lease(struct inode *inode, unsigned int mode)
 		if (fl->fl_owner == current->files)
 			i_have_this_lease = 1;
 
-	if (IS_ERR(new_fl) && !i_have_this_lease
-			&& ((mode & O_NONBLOCK) == 0)) {
-		error = PTR_ERR(new_fl);
-		goto out;
-	}
-
 	break_time = 0;
 	if (lease_break_time > 0) {
 		break_time = jiffies + lease_break_time * HZ;
@@ -1284,8 +1280,7 @@ restart:
 
 out:
 	unlock_flocks();
-	if (!IS_ERR(new_fl))
-		locks_free_lock(new_fl);
+	locks_free_lock(new_fl);
 	return error;
 }
 
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index eca56d4b39c0..606ef0f20aed 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -147,7 +147,7 @@ static loff_t nfs_file_llseek(struct file *filp, loff_t offset, int origin)
 	 * origin == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
 	 * the cached file length
 	 */
-	if (origin != SEEK_SET || origin != SEEK_CUR) {
+	if (origin != SEEK_SET && origin != SEEK_CUR) {
 		struct inode *inode = filp->f_mapping->host;
 
 		int retval = nfs_revalidate_file_size(inode, filp);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index be2bbac13817..d9f4d78c3413 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -39,6 +39,8 @@
 #include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/string.h>
+#include <linux/ratelimit.h>
+#include <linux/printk.h>
 #include <linux/slab.h>
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/gss_api.h>
@@ -894,6 +896,8 @@ out:
 
 static int can_open_delegated(struct nfs_delegation *delegation, fmode_t fmode)
 {
+	if (delegation == NULL)
+		return 0;
 	if ((delegation->type & fmode) != fmode)
 		return 0;
 	if (test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags))
@@ -1036,8 +1040,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
 		}
 		rcu_read_lock();
 		delegation = rcu_dereference(nfsi->delegation);
-		if (delegation == NULL ||
-		    !can_open_delegated(delegation, fmode)) {
+		if (!can_open_delegated(delegation, fmode)) {
 			rcu_read_unlock();
 			break;
 		}
@@ -1091,7 +1094,12 @@ static struct nfs4_state *nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data
 		if (delegation)
 			delegation_flags = delegation->flags;
 		rcu_read_unlock();
-		if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
+		if (data->o_arg.claim == NFS4_OPEN_CLAIM_DELEGATE_CUR) {
+			pr_err_ratelimited("NFS: Broken NFSv4 server %s is "
+					"returning a delegation for "
+					"OPEN(CLAIM_DELEGATE_CUR)\n",
+					NFS_CLIENT(inode)->cl_server);
+		} else if ((delegation_flags & 1UL<<NFS_DELEGATION_NEED_RECLAIM) == 0)
 			nfs_inode_set_delegation(state->inode,
 					data->owner->so_cred,
 					&data->o_res);
@@ -1423,11 +1431,9 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
 			goto out_no_action;
 		rcu_read_lock();
 		delegation = rcu_dereference(NFS_I(data->state->inode)->delegation);
-		if (delegation != NULL &&
-		    test_bit(NFS_DELEGATION_NEED_RECLAIM, &delegation->flags) == 0) {
-			rcu_read_unlock();
-			goto out_no_action;
-		}
+		if (data->o_arg.claim != NFS4_OPEN_CLAIM_DELEGATE_CUR &&
+		    can_open_delegated(delegation, data->o_arg.fmode))
+			goto unlock_no_action;
 		rcu_read_unlock();
 	}
 	/* Update sequence id. */
@@ -1444,6 +1450,8 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata)
 		return;
 	rpc_call_start(task);
 	return;
+unlock_no_action:
+	rcu_read_unlock();
 out_no_action:
 	task->tk_action = NULL;
 
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 39914be40b03..6a7107ae6b72 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1156,11 +1156,13 @@ restart:
 		if (status >= 0) {
 			status = nfs4_reclaim_locks(state, ops);
 			if (status >= 0) {
+				spin_lock(&state->state_lock);
 				list_for_each_entry(lock, &state->lock_states, ls_locks) {
 					if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
 						printk("%s: Lock reclaim failed!\n",
 							__func__);
 				}
+				spin_unlock(&state->state_lock);
 				nfs4_put_open_state(state);
 				goto restart;
 			}
@@ -1224,10 +1226,12 @@ static void nfs4_clear_open_state(struct nfs4_state *state)
 	clear_bit(NFS_O_RDONLY_STATE, &state->flags);
 	clear_bit(NFS_O_WRONLY_STATE, &state->flags);
 	clear_bit(NFS_O_RDWR_STATE, &state->flags);
+	spin_lock(&state->state_lock);
 	list_for_each_entry(lock, &state->lock_states, ls_locks) {
 		lock->ls_seqid.flags = 0;
 		lock->ls_flags &= ~NFS_LOCK_INITIALIZED;
 	}
+	spin_unlock(&state->state_lock);
 }
 
 static void nfs4_reset_seqids(struct nfs_server *server,
@@ -1350,12 +1354,14 @@ static void nfs4_warn_keyexpired(const char *s)
 static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
 {
 	switch (error) {
+		case 0:
+			break;
 		case -NFS4ERR_CB_PATH_DOWN:
 			nfs_handle_cb_pathdown(clp);
-			return 0;
+			break;
 		case -NFS4ERR_NO_GRACE:
 			nfs4_state_end_reclaim_reboot(clp);
-			return 0;
+			break;
 		case -NFS4ERR_STALE_CLIENTID:
 		case -NFS4ERR_LEASE_MOVED:
 			set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
@@ -1375,13 +1381,15 @@ static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
 		case -NFS4ERR_SEQ_MISORDERED:
 			set_bit(NFS4CLNT_SESSION_RESET, &clp->cl_state);
 			/* Zero session reset errors */
-			return 0;
+			break;
 		case -EKEYEXPIRED:
 			/* Nothing we can do */
 			nfs4_warn_keyexpired(clp->cl_hostname);
-			return 0;
+			break;
+		default:
+			return error;
 	}
-	return error;
+	return 0;
 }
 
 static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recovery_ops *ops)
@@ -1428,7 +1436,7 @@ static int nfs4_check_lease(struct nfs_client *clp)
 	struct rpc_cred *cred;
 	const struct nfs4_state_maintenance_ops *ops =
 		clp->cl_mvops->state_renewal_ops;
-	int status = -NFS4ERR_EXPIRED;
+	int status;
 
 	/* Is the client already known to have an expired lease? */
 	if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
@@ -1438,6 +1446,7 @@ static int nfs4_check_lease(struct nfs_client *clp)
 	spin_unlock(&clp->cl_lock);
 	if (cred == NULL) {
 		cred = nfs4_get_setclientid_cred(clp);
+		status = -ENOKEY;
 		if (cred == NULL)
 			goto out;
 	}
@@ -1525,16 +1534,16 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
 {
 	if (!flags)
 		return;
-	else if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED)
+	if (flags & SEQ4_STATUS_RESTART_RECLAIM_NEEDED)
 		nfs41_handle_server_reboot(clp);
-	else if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |
+	if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |
 			    SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED |
 			    SEQ4_STATUS_ADMIN_STATE_REVOKED |
 			    SEQ4_STATUS_LEASE_MOVED))
 		nfs41_handle_state_revoked(clp);
-	else if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)
+	if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)
 		nfs41_handle_recallable_state_revoked(clp);
-	else if (flags & (SEQ4_STATUS_CB_PATH_DOWN |
+	if (flags & (SEQ4_STATUS_CB_PATH_DOWN |
 			    SEQ4_STATUS_BACKCHANNEL_FAULT |
 			    SEQ4_STATUS_CB_PATH_DOWN_SESSION))
 		nfs41_handle_cb_path_down(clp);
@@ -1662,10 +1671,10 @@ static void nfs4_state_manager(struct nfs_client *clp)
 
 		if (test_and_clear_bit(NFS4CLNT_CHECK_LEASE, &clp->cl_state)) {
 			status = nfs4_check_lease(clp);
+			if (status < 0)
+				goto out_error;
 			if (test_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state))
 				continue;
-			if (status < 0 && status != -NFS4ERR_CB_PATH_DOWN)
-				goto out_error;
 		}
 
 		/* Initialize or reset the session */
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c
index 41d6743d303c..ac258beeda3c 100644
--- a/fs/nilfs2/ioctl.c
+++ b/fs/nilfs2/ioctl.c
@@ -625,6 +625,9 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp,
 		if (argv[n].v_nmembs > nsegs * nilfs->ns_blocks_per_segment)
 			goto out_free;
 
+		if (argv[n].v_nmembs >= UINT_MAX / argv[n].v_size)
+			goto out_free;
+
 		len = argv[n].v_size * argv[n].v_nmembs;
 		base = (void __user *)(unsigned long)argv[n].v_base;
 		if (len == 0) {
@@ -842,6 +845,19 @@ long nilfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	case FS_IOC32_GETVERSION:
 		cmd = FS_IOC_GETVERSION;
 		break;
+	case NILFS_IOCTL_CHANGE_CPMODE:
+	case NILFS_IOCTL_DELETE_CHECKPOINT:
+	case NILFS_IOCTL_GET_CPINFO:
+	case NILFS_IOCTL_GET_CPSTAT:
+	case NILFS_IOCTL_GET_SUINFO:
+	case NILFS_IOCTL_GET_SUSTAT:
+	case NILFS_IOCTL_GET_VINFO:
+	case NILFS_IOCTL_GET_BDESCS:
+	case NILFS_IOCTL_CLEAN_SEGMENTS:
+	case NILFS_IOCTL_SYNC:
+	case NILFS_IOCTL_RESIZE:
+	case NILFS_IOCTL_SET_ALLOC_RANGE:
+		break;
 	default:
 		return -ENOIOCTLCMD;
 	}
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 2a30d67dd6b8..0855e6f20391 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -32,7 +32,7 @@ static cputime64_t get_idle_time(int cpu)
 		idle = kstat_cpu(cpu).cpustat.idle;
 		idle = cputime64_add(idle, arch_idle_time(cpu));
 	} else
-		idle = nsecs_to_jiffies64(1000 * idle_time);
+		idle = usecs_to_cputime64(idle_time);
 
 	return idle;
 }
@@ -46,7 +46,7 @@ static cputime64_t get_iowait_time(int cpu)
 		/* !NO_HZ so we can rely on cpustat.iowait */
 		iowait = kstat_cpu(cpu).cpustat.iowait;
 	else
-		iowait = nsecs_to_jiffies64(1000 * iowait_time);
+		iowait = usecs_to_cputime64(iowait_time);
 
 	return iowait;
 }
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 3eca58f51ae9..8a899496fd5f 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -869,27 +869,6 @@ xfs_fs_dirty_inode(
 }
 
 STATIC int
-xfs_log_inode(
-	struct xfs_inode	*ip)
-{
-	struct xfs_mount	*mp = ip->i_mount;
-	struct xfs_trans	*tp;
-	int			error;
-
-	tp = xfs_trans_alloc(mp, XFS_TRANS_FSYNC_TS);
-	error = xfs_trans_reserve(tp, 0, XFS_FSYNC_TS_LOG_RES(mp), 0, 0, 0);
-	if (error) {
-		xfs_trans_cancel(tp, 0);
-		return error;
-	}
-
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	return xfs_trans_commit(tp, 0);
-}
-
-STATIC int
 xfs_fs_write_inode(
 	struct inode		*inode,
 	struct writeback_control *wbc)
@@ -902,10 +881,8 @@ xfs_fs_write_inode(
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -XFS_ERROR(EIO);
-	if (!ip->i_update_core)
-		return 0;
 
-	if (wbc->sync_mode == WB_SYNC_ALL) {
+	if (wbc->sync_mode == WB_SYNC_ALL || wbc->for_kupdate) {
 		/*
 		 * Make sure the inode has made it it into the log.  Instead
 		 * of forcing it all the way to stable storage using a
@@ -913,11 +890,14 @@ xfs_fs_write_inode(
 		 * ->sync_fs call do that for thus, which reduces the number
 		 * of synchronous log forces dramatically.
 		 */
-		error = xfs_log_inode(ip);
+		error = xfs_log_dirty_inode(ip, NULL, 0);
 		if (error)
 			goto out;
 		return 0;
 	} else {
+		if (!ip->i_update_core)
+			return 0;
+
 		/*
 		 * We make this non-blocking if the inode is contended, return
 		 * EAGAIN to indicate to the caller that they did not succeed.
diff --git a/fs/xfs/xfs_sync.c b/fs/xfs/xfs_sync.c
index be5c51d8f757..f0994aedcd15 100644
--- a/fs/xfs/xfs_sync.c
+++ b/fs/xfs/xfs_sync.c
@@ -336,6 +336,32 @@ xfs_sync_fsdata(
 	return error;
 }
 
+int
+xfs_log_dirty_inode(
+	struct xfs_inode	*ip,
+	struct xfs_perag	*pag,
+	int			flags)
+{
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	int			error;
+
+	if (!ip->i_update_core)
+		return 0;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_FSYNC_TS);
+	error = xfs_trans_reserve(tp, 0, XFS_FSYNC_TS_LOG_RES(mp), 0, 0, 0);
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	return xfs_trans_commit(tp, 0);
+}
+
 /*
  * When remounting a filesystem read-only or freezing the filesystem, we have
  * two phases to execute. This first phase is syncing the data before we
@@ -359,6 +385,16 @@ xfs_quiesce_data(
 {
 	int			error, error2 = 0;
 
+	/*
+	 * Log all pending size and timestamp updates.  The vfs writeback
+	 * code is supposed to do this, but due to its overagressive
+	 * livelock detection it will skip inodes where appending writes
+	 * were written out in the first non-blocking sync phase if their
+	 * completion took long enough that it happened after taking the
+	 * timestamp for the cut-off in the blocking phase.
+	 */
+	xfs_inode_ag_iterator(mp, xfs_log_dirty_inode, 0);
+
 	xfs_qm_sync(mp, SYNC_TRYLOCK);
 	xfs_qm_sync(mp, SYNC_WAIT);
 
diff --git a/fs/xfs/xfs_sync.h b/fs/xfs/xfs_sync.h
index 941202e7ac6e..fa965479d788 100644
--- a/fs/xfs/xfs_sync.h
+++ b/fs/xfs/xfs_sync.h
@@ -34,6 +34,8 @@ void xfs_quiesce_attr(struct xfs_mount *mp);
 
 void xfs_flush_inodes(struct xfs_inode *ip);
 
+int xfs_log_dirty_inode(struct xfs_inode *ip, struct xfs_perag *pag, int flags);
+
 int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
 int xfs_reclaim_inodes_count(struct xfs_mount *mp);
 void xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);