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authorDavid Chinner <dgc@sgi.com>2008-04-17 16:49:55 +1000
committerLachlan McIlroy <lachlan@redback.melbourne.sgi.com>2008-04-18 12:03:12 +1000
commit7e20694d91f817f8e9f62404aca793ae0df4d98a (patch)
tree36831242dad3429ea4bb56f681ebd8c82d3d2200 /fs/xfs
parente6430037e9fd0b3d02ceaf5ab99bfe3ccb763be7 (diff)
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[XFS] Remove periodic logging of in-core superblock counters.
xfssyncd triggers the logging of superblock counters every 30s if the filesystem is made with lazy-count=1. This will prevent disks from idling and spinning down as there will be a log write every 30s. With the way counter recovery works for lazy-count=1, this code is unnecessary and provides no real benefit, so just remove it. SGI-PV: 980145 SGI-Modid: xfs-linux-melb:xfs-kern:30840a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Barry Naujok <bnaujok@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/linux-2.6/xfs_super.c3
-rw-r--r--fs/xfs/linux-2.6/xfs_vfs.h1
-rw-r--r--fs/xfs/xfs_vfsops.c13
3 files changed, 1 insertions, 16 deletions
diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c
index fb561be..865eb70 100644
--- a/fs/xfs/linux-2.6/xfs_super.c
+++ b/fs/xfs/linux-2.6/xfs_super.c
@@ -1028,8 +1028,7 @@ xfs_sync_worker(
int error;
if (!(mp->m_flags & XFS_MOUNT_RDONLY))
- error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR |
- SYNC_REFCACHE | SYNC_SUPER);
+ error = xfs_sync(mp, SYNC_FSDATA | SYNC_BDFLUSH | SYNC_ATTR);
mp->m_sync_seq++;
wake_up(&mp->m_wait_single_sync_task);
}
diff --git a/fs/xfs/linux-2.6/xfs_vfs.h b/fs/xfs/linux-2.6/xfs_vfs.h
index 4da03a4..7e60c77 100644
--- a/fs/xfs/linux-2.6/xfs_vfs.h
+++ b/fs/xfs/linux-2.6/xfs_vfs.h
@@ -49,7 +49,6 @@ typedef struct bhv_vfs_sync_work {
#define SYNC_REFCACHE 0x0040 /* prune some of the nfs ref cache */
#define SYNC_REMOUNT 0x0080 /* remount readonly, no dummy LRs */
#define SYNC_IOWAIT 0x0100 /* wait for all I/O to complete */
-#define SYNC_SUPER 0x0200 /* flush superblock to disk */
/*
* When remounting a filesystem read-only or freezing the filesystem,
diff --git a/fs/xfs/xfs_vfsops.c b/fs/xfs/xfs_vfsops.c
index 09e186d..fc48158 100644
--- a/fs/xfs/xfs_vfsops.c
+++ b/fs/xfs/xfs_vfsops.c
@@ -1317,21 +1317,8 @@ xfs_syncsub(
}
/*
- * If asked, update the disk superblock with incore counter values if we
- * are using non-persistent counters so that they don't get too far out
- * of sync if we crash or get a forced shutdown. We don't want to force
- * this to disk, just get a transaction into the iclogs....
- */
- if (flags & SYNC_SUPER) {
- error = xfs_log_sbcount(mp, 0);
- if (error)
- last_error = error;
- }
-
- /*
* Now check to see if the log needs a "dummy" transaction.
*/
-
if (!(flags & SYNC_REMOUNT) && xfs_log_need_covered(mp)) {
xfs_trans_t *tp;
xfs_inode_t *ip;