1 files changed, 17 insertions, 53 deletions

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 3eca58f..281961c 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -199,7 +199,6 @@ xfs_parseargs(
 	mp->m_flags |= XFS_MOUNT_BARRIER;
 	mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
 	mp->m_flags |= XFS_MOUNT_SMALL_INUMS;
-	mp->m_flags |= XFS_MOUNT_DELAYLOG;
 
 	/*
 	 * These can be overridden by the mount option parsing.
@@ -353,11 +352,11 @@ xfs_parseargs(
 			mp->m_qflags |= (XFS_GQUOTA_ACCT | XFS_GQUOTA_ACTIVE);
 			mp->m_qflags &= ~XFS_OQUOTA_ENFD;
 		} else if (!strcmp(this_char, MNTOPT_DELAYLOG)) {
-			mp->m_flags |= XFS_MOUNT_DELAYLOG;
+			xfs_warn(mp,
+	"delaylog is the default now, option is deprecated.");
 		} else if (!strcmp(this_char, MNTOPT_NODELAYLOG)) {
-			mp->m_flags &= ~XFS_MOUNT_DELAYLOG;
 			xfs_warn(mp,
-	"nodelaylog is deprecated and will be removed in Linux 3.3");
+	"nodelaylog support has been removed, option is deprecated.");
 		} else if (!strcmp(this_char, MNTOPT_DISCARD)) {
 			mp->m_flags |= XFS_MOUNT_DISCARD;
 		} else if (!strcmp(this_char, MNTOPT_NODISCARD)) {
@@ -395,13 +394,6 @@ xfs_parseargs(
 		return EINVAL;
 	}
 
-	if ((mp->m_flags & XFS_MOUNT_DISCARD) &&
-	    !(mp->m_flags & XFS_MOUNT_DELAYLOG)) {
-		xfs_warn(mp,
-	"the discard option is incompatible with the nodelaylog option");
-		return EINVAL;
-	}
-
 #ifndef CONFIG_XFS_QUOTA
 	if (XFS_IS_QUOTA_RUNNING(mp)) {
 		xfs_warn(mp, "quota support not available in this kernel.");
@@ -501,7 +493,6 @@ xfs_showargs(
 		{ XFS_MOUNT_ATTR2,		"," MNTOPT_ATTR2 },
 		{ XFS_MOUNT_FILESTREAMS,	"," MNTOPT_FILESTREAM },
 		{ XFS_MOUNT_GRPID,		"," MNTOPT_GRPID },
-		{ XFS_MOUNT_DELAYLOG,		"," MNTOPT_DELAYLOG },
 		{ XFS_MOUNT_DISCARD,		"," MNTOPT_DISCARD },
 		{ 0, NULL }
 	};
@@ -869,27 +860,6 @@ 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 +872,8 @@ 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 +881,14 @@ 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.
@@ -1034,17 +1005,10 @@ xfs_fs_sync_fs(
 	int			error;
 
 	/*
-	 * Not much we can do for the first async pass.  Writing out the
-	 * superblock would be counter-productive as we are going to redirty
-	 * when writing out other data and metadata (and writing out a single
-	 * block is quite fast anyway).
-	 *
-	 * Try to asynchronously kick off quota syncing at least.
+	 * Doing anything during the async pass would be counterproductive.
 	 */
-	if (!wait) {
-		xfs_qm_sync(mp, SYNC_TRYLOCK);
+	if (!wait)
 		return 0;
-	}
 
 	error = xfs_quiesce_data(mp);
 	if (error)
@@ -1258,9 +1222,9 @@ xfs_fs_unfreeze(
 STATIC int
 xfs_fs_show_options(
 	struct seq_file		*m,
-	struct vfsmount		*mnt)
+	struct dentry		*root)
 {
-	return -xfs_showargs(XFS_M(mnt->mnt_sb), m);
+	return -xfs_showargs(XFS_M(root->d_sb), m);
 }
 
 /*
@@ -1641,12 +1605,12 @@ STATIC int __init
 xfs_init_workqueues(void)
 {
 	/*
-	 * max_active is set to 8 to give enough concurency to allow
-	 * multiple work operations on each CPU to run. This allows multiple
-	 * filesystems to be running sync work concurrently, and scales with
-	 * the number of CPUs in the system.
+	 * We never want to the same work item to run twice, reclaiming inodes
+	 * or idling the log is not going to get any faster by multiple CPUs
+	 * competing for ressources.  Use the default large max_active value
+	 * so that even lots of filesystems can perform these task in parallel.
 	 */
-	xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_CPU_INTENSIVE, 8);
+	xfs_syncd_wq = alloc_workqueue("xfssyncd", WQ_NON_REENTRANT, 0);
 	if (!xfs_syncd_wq)
 		return -ENOMEM;
 	return 0;