Merge linux-2.6 with linux-acpi-2.6

9 files changed, 102 insertions, 100 deletions

diff --git a/fs/xfs/quota/Makefile b/fs/xfs/quota/Makefile
new file mode 100644
index 000000000000..7a4f725b2824
--- /dev/null
+++ b/fs/xfs/quota/Makefile
@@ -0,0 +1 @@
+include $(TOPDIR)/fs/xfs/quota/Makefile-linux-$(VERSION).$(PATCHLEVEL)
diff --git a/fs/xfs/quota/Makefile-linux-2.6 b/fs/xfs/quota/Makefile-linux-2.6
new file mode 100644
index 000000000000..8b7b676718b9
--- /dev/null
+++ b/fs/xfs/quota/Makefile-linux-2.6
@@ -0,0 +1,53 @@
+#
+# Copyright (c) 2000-2003 Silicon Graphics, Inc.  All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 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.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.	Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA  94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+EXTRA_CFLAGS += -I $(TOPDIR)/fs/xfs -I $(TOPDIR)/fs/xfs/linux-2.6
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+	EXTRA_CFLAGS += -g -DDEBUG
+	#EXTRA_CFLAGS += -DQUOTADEBUG
+endif
+ifeq ($(CONFIG_XFS_TRACE),y)
+	EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
+	EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+endif
+
+obj-$(CONFIG_XFS_QUOTA)		+= xfs_quota.o
+
+xfs_quota-y			+= xfs_dquot.o \
+				   xfs_dquot_item.o \
+				   xfs_trans_dquot.o \
+				   xfs_qm_syscalls.o \
+				   xfs_qm_bhv.o \
+				   xfs_qm.o
+
+xfs_quota-$(CONFIG_PROC_FS)	+= xfs_qm_stats.o
diff --git a/fs/xfs/quota/xfs_dquot.c b/fs/xfs/quota/xfs_dquot.c
index 46ce1e3ce1d6..e2e8d35fa4d0 100644
--- a/fs/xfs/quota/xfs_dquot.c
+++ b/fs/xfs/quota/xfs_dquot.c
@@ -421,7 +421,7 @@ xfs_qm_init_dquot_blk(
  */
 STATIC int
 xfs_qm_dqalloc(
-	xfs_trans_t	*tp,
+	xfs_trans_t	**tpp,
 	xfs_mount_t	*mp,
 	xfs_dquot_t	*dqp,
 	xfs_inode_t	*quotip,
@@ -433,6 +433,7 @@ xfs_qm_dqalloc(
 	xfs_bmbt_irec_t map;
 	int		nmaps, error, committed;
 	xfs_buf_t	*bp;
+	xfs_trans_t	*tp = *tpp;
 
 	ASSERT(tp != NULL);
 	xfs_dqtrace_entry(dqp, "DQALLOC");
@@ -492,10 +493,32 @@ xfs_qm_dqalloc(
 	xfs_qm_init_dquot_blk(tp, mp, INT_GET(dqp->q_core.d_id, ARCH_CONVERT),
 			      dqp->dq_flags & XFS_DQ_ALLTYPES, bp);
 
-	if ((error = xfs_bmap_finish(&tp, &flist, firstblock, &committed))) {
+	/*
+	 * xfs_bmap_finish() may commit the current transaction and
+	 * start a second transaction if the freelist is not empty.
+	 *
+	 * Since we still want to modify this buffer, we need to
+	 * ensure that the buffer is not released on commit of
+	 * the first transaction and ensure the buffer is added to the
+	 * second transaction.
+	 *
+	 * If there is only one transaction then don't stop the buffer
+	 * from being released when it commits later on.
+	 */
+
+	xfs_trans_bhold(tp, bp);
+
+	if ((error = xfs_bmap_finish(tpp, &flist, firstblock, &committed))) {
 		goto error1;
 	}
 
+	if (committed) {
+		tp = *tpp;
+		xfs_trans_bjoin(tp, bp);
+	} else {
+		xfs_trans_bhold_release(tp, bp);
+	}
+
 	*O_bpp = bp;
 	return 0;
 
@@ -514,7 +537,7 @@ xfs_qm_dqalloc(
  */
 STATIC int
 xfs_qm_dqtobp(
-	xfs_trans_t		*tp,
+	xfs_trans_t		**tpp,
 	xfs_dquot_t		*dqp,
 	xfs_disk_dquot_t	**O_ddpp,
 	xfs_buf_t		**O_bpp,
@@ -528,6 +551,7 @@ xfs_qm_dqtobp(
 	xfs_disk_dquot_t *ddq;
 	xfs_dqid_t	id;
 	boolean_t	newdquot;
+	xfs_trans_t	*tp = (tpp ? *tpp : NULL);
 
 	mp = dqp->q_mount;
 	id = INT_GET(dqp->q_core.d_id, ARCH_CONVERT);
@@ -579,9 +603,10 @@ xfs_qm_dqtobp(
 				return (ENOENT);
 
 			ASSERT(tp);
-			if ((error = xfs_qm_dqalloc(tp, mp, dqp, quotip,
+			if ((error = xfs_qm_dqalloc(tpp, mp, dqp, quotip,
 						dqp->q_fileoffset, &bp)))
 				return (error);
+			tp = *tpp;
 			newdquot = B_TRUE;
 		} else {
 			/*
@@ -645,7 +670,7 @@ xfs_qm_dqtobp(
 /* ARGSUSED */
 STATIC int
 xfs_qm_dqread(
-	xfs_trans_t	*tp,
+	xfs_trans_t	**tpp,
 	xfs_dqid_t	id,
 	xfs_dquot_t	*dqp,	/* dquot to get filled in */
 	uint		flags)
@@ -653,15 +678,19 @@ xfs_qm_dqread(
 	xfs_disk_dquot_t *ddqp;
 	xfs_buf_t	 *bp;
 	int		 error;
+	xfs_trans_t	 *tp;
+
+	ASSERT(tpp);
 
 	/*
 	 * get a pointer to the on-disk dquot and the buffer containing it
 	 * dqp already knows its own type (GROUP/USER).
 	 */
 	xfs_dqtrace_entry(dqp, "DQREAD");
-	if ((error = xfs_qm_dqtobp(tp, dqp, &ddqp, &bp, flags))) {
+	if ((error = xfs_qm_dqtobp(tpp, dqp, &ddqp, &bp, flags))) {
 		return (error);
 	}
+	tp = *tpp;
 
 	/* copy everything from disk dquot to the incore dquot */
 	memcpy(&dqp->q_core, ddqp, sizeof(xfs_disk_dquot_t));
@@ -740,7 +769,7 @@ xfs_qm_idtodq(
 	 * Read it from disk; xfs_dqread() takes care of
 	 * all the necessary initialization of dquot's fields (locks, etc)
 	 */
-	if ((error = xfs_qm_dqread(tp, id, dqp, flags))) {
+	if ((error = xfs_qm_dqread(&tp, id, dqp, flags))) {
 		/*
 		 * This can happen if quotas got turned off (ESRCH),
 		 * or if the dquot didn't exist on disk and we ask to
diff --git a/fs/xfs/quota/xfs_dquot.h b/fs/xfs/quota/xfs_dquot.h
index 39175103c8e0..8ebc87176c78 100644
--- a/fs/xfs/quota/xfs_dquot.h
+++ b/fs/xfs/quota/xfs_dquot.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -113,20 +113,6 @@ typedef struct xfs_dquot {
 
 #define XFS_DQHOLD(dqp)		((dqp)->q_nrefs++)
 
-/*
- * Quota Accounting/Enforcement flags
- */
-#define XFS_ALL_QUOTA_ACCT	\
-		(XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT)
-#define XFS_ALL_QUOTA_ENFD	(XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD)
-#define XFS_ALL_QUOTA_CHKD	(XFS_UQUOTA_CHKD | XFS_OQUOTA_CHKD)
-
-#define XFS_IS_QUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
-#define XFS_IS_QUOTA_ENFORCED(mp)	((mp)->m_qflags & XFS_ALL_QUOTA_ENFD)
-#define XFS_IS_UQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_UQUOTA_ACCT)
-#define XFS_IS_PQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_PQUOTA_ACCT)
-#define XFS_IS_GQUOTA_RUNNING(mp)	((mp)->m_qflags & XFS_GQUOTA_ACCT)
-
 #ifdef DEBUG
 static inline int
 XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
diff --git a/fs/xfs/quota/xfs_dquot_item.c b/fs/xfs/quota/xfs_dquot_item.c
index f5271b7b1e84..e74eaa7dd1bc 100644
--- a/fs/xfs/quota/xfs_dquot_item.c
+++ b/fs/xfs/quota/xfs_dquot_item.c
@@ -509,6 +509,7 @@ xfs_qm_qoff_logitem_format(xfs_qoff_logitem_t	*qf,
 
 	log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
 	log_vector->i_len = sizeof(xfs_qoff_logitem_t);
+	XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_QUOTAOFF);
 	qf->qql_format.qf_size = 1;
 }
 
diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
index f665ca8f9e96..efde16e0a913 100644
--- a/fs/xfs/quota/xfs_qm.c
+++ b/fs/xfs/quota/xfs_qm.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -365,16 +365,6 @@ xfs_qm_mount_quotas(
 	int		error = 0;
 	uint		sbf;
 
-	/*
-	 * If a file system had quotas running earlier, but decided to
-	 * mount without -o uquota/pquota/gquota options, revoke the
-	 * quotachecked license, and bail out.
-	 */
-	if (! XFS_IS_QUOTA_ON(mp) &&
-	    (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT)) {
-		mp->m_qflags = 0;
-		goto write_changes;
-	}
 
 	/*
 	 * If quotas on realtime volumes is not supported, we disable
@@ -388,11 +378,8 @@ xfs_qm_mount_quotas(
 		goto write_changes;
 	}
 
-#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
-	cmn_err(CE_NOTE, "Attempting to turn on disk quotas.");
-#endif
-
 	ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
 	/*
 	 * Allocate the quotainfo structure inside the mount struct, and
 	 * create quotainode(s), and change/rev superblock if necessary.
@@ -410,19 +397,14 @@ xfs_qm_mount_quotas(
 	 */
 	if (XFS_QM_NEED_QUOTACHECK(mp) &&
 		!(mfsi_flags & XFS_MFSI_NO_QUOTACHECK)) {
-#ifdef DEBUG
-		cmn_err(CE_NOTE, "Doing a quotacheck. Please wait.");
-#endif
 		if ((error = xfs_qm_quotacheck(mp))) {
 			/* Quotacheck has failed and quotas have
 			 * been disabled.
 			 */
 			return XFS_ERROR(error);
 		}
-#ifdef DEBUG
-		cmn_err(CE_NOTE, "Done quotacheck.");
-#endif
 	}
+
  write_changes:
 	/*
 	 * We actually don't have to acquire the SB_LOCK at all.
@@ -2010,7 +1992,7 @@ xfs_qm_quotacheck(
 		ASSERT(mp->m_quotainfo != NULL);
 		ASSERT(xfs_Gqm != NULL);
 		xfs_qm_destroy_quotainfo(mp);
-		xfs_mount_reset_sbqflags(mp);
+		(void)xfs_mount_reset_sbqflags(mp);
 	} else {
 		cmn_err(CE_NOTE, "XFS quotacheck %s: Done.", mp->m_fsname);
 	}
diff --git a/fs/xfs/quota/xfs_qm.h b/fs/xfs/quota/xfs_qm.h
index b03eecf3b6cb..0b00b3c67015 100644
--- a/fs/xfs/quota/xfs_qm.h
+++ b/fs/xfs/quota/xfs_qm.h
@@ -184,8 +184,6 @@ typedef struct xfs_dquot_acct {
 #define XFS_QM_HOLD(xqm)	((xqm)->qm_nrefs++)
 #define XFS_QM_RELE(xqm)	((xqm)->qm_nrefs--)
 
-extern void		xfs_mount_reset_sbqflags(xfs_mount_t *);
-
 extern void		xfs_qm_destroy_quotainfo(xfs_mount_t *);
 extern int		xfs_qm_mount_quotas(xfs_mount_t *, int);
 extern void		xfs_qm_mount_quotainit(xfs_mount_t *, uint);
diff --git a/fs/xfs/quota/xfs_qm_bhv.c b/fs/xfs/quota/xfs_qm_bhv.c
index dc3c37a1e158..8890a18a99d8 100644
--- a/fs/xfs/quota/xfs_qm_bhv.c
+++ b/fs/xfs/quota/xfs_qm_bhv.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of version 2 of the GNU General Public License as
@@ -229,48 +229,6 @@ xfs_qm_syncall(
 	return error;
 }
 
-/*
- * Clear the quotaflags in memory and in the superblock.
- */
-void
-xfs_mount_reset_sbqflags(
-	xfs_mount_t		*mp)
-{
-	xfs_trans_t		*tp;
-	unsigned long		s;
-
-	mp->m_qflags = 0;
-	/*
-	 * It is OK to look at sb_qflags here in mount path,
-	 * without SB_LOCK.
-	 */
-	if (mp->m_sb.sb_qflags == 0)
-		return;
-	s = XFS_SB_LOCK(mp);
-	mp->m_sb.sb_qflags = 0;
-	XFS_SB_UNLOCK(mp, s);
-
-	/*
-	 * if the fs is readonly, let the incore superblock run
-	 * with quotas off but don't flush the update out to disk
-	 */
-	if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
-		return;
-#ifdef QUOTADEBUG
-	xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
-#endif
-	tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
-	if (xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
-				      XFS_DEFAULT_LOG_COUNT)) {
-		xfs_trans_cancel(tp, 0);
-		xfs_fs_cmn_err(CE_ALERT, mp,
-			"xfs_mount_reset_sbqflags: Superblock update failed!");
-		return;
-	}
-	xfs_mod_sb(tp, XFS_SB_QFLAGS);
-	xfs_trans_commit(tp, 0, NULL);
-}
-
 STATIC int
 xfs_qm_newmount(
 	xfs_mount_t	*mp,
diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 68e98962dbef..15e02e8a9d4f 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -1053,7 +1053,6 @@ xfs_qm_dqrele_all_inodes(
 	struct xfs_mount *mp,
 	uint		 flags)
 {
-	vmap_t		vmap;
 	xfs_inode_t	*ip, *topino;
 	uint		ireclaims;
 	vnode_t		*vp;
@@ -1061,8 +1060,8 @@ xfs_qm_dqrele_all_inodes(
 
 	ASSERT(mp->m_quotainfo);
 
-again:
 	XFS_MOUNT_ILOCK(mp);
+again:
 	ip = mp->m_inodes;
 	if (ip == NULL) {
 		XFS_MOUNT_IUNLOCK(mp);
@@ -1090,18 +1089,14 @@ again:
 		}
 		vnode_refd = B_FALSE;
 		if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) {
-			/*
-			 * Sample vp mapping while holding the mplock, lest
-			 * we come across a non-existent vnode.
-			 */
-			VMAP(vp, vmap);
 			ireclaims = mp->m_ireclaims;
 			topino = mp->m_inodes;
-			XFS_MOUNT_IUNLOCK(mp);
+			vp = vn_grab(vp);
+			if (!vp)
+				goto again;
 
+			XFS_MOUNT_IUNLOCK(mp);
 			/* XXX restart limit ? */
-			if ( ! (vp = vn_get(vp, &vmap)))
-				goto again;
 			xfs_ilock(ip, XFS_ILOCK_EXCL);
 			vnode_refd = B_TRUE;
 		} else {
@@ -1137,7 +1132,6 @@ again:
 		 */
 		if (topino != mp->m_inodes || mp->m_ireclaims != ireclaims) {
 			/* XXX use a sentinel */
-			XFS_MOUNT_IUNLOCK(mp);
 			goto again;
 		}
 		ip = ip->i_mnext;