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authorThomas Gleixner <tglx@linutronix.de>2012-07-15 10:24:53 +0200
committerThomas Gleixner <tglx@linutronix.de>2012-07-15 10:24:53 +0200
commite8b9dd7e2471b1274e3be719fcc385e0a710e46f (patch)
tree030d7ce20e8f8767d9423f78c102aba089eec372 /fs/xfs/xfs_sync.c
parent924412f66fd9d21212e560a93792b0b607d46c6e (diff)
parent6b1859dba01c7d512b72d77e3fd7da8354235189 (diff)
downloadlinux-next-e8b9dd7e2471b1274e3be719fcc385e0a710e46f.tar.gz
Merge branch 'timers/urgent' into timers/core
Reason: Update to upstream changes to avoid further conflicts. Fixup a trivial merge conflict in kernel/time/tick-sched.c Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'fs/xfs/xfs_sync.c')
-rw-r--r--fs/xfs/xfs_sync.c32
1 files changed, 16 insertions, 16 deletions
diff --git a/fs/xfs/xfs_sync.c b/fs/xfs/xfs_sync.c
index c9d3409c5ca3..1e9ee064dbb2 100644
--- a/fs/xfs/xfs_sync.c
+++ b/fs/xfs/xfs_sync.c
@@ -386,23 +386,23 @@ xfs_sync_worker(
* We shouldn't write/force the log if we are in the mount/unmount
* process or on a read only filesystem. The workqueue still needs to be
* active in both cases, however, because it is used for inode reclaim
- * during these times. Use the s_umount semaphore to provide exclusion
- * with unmount.
+ * during these times. Use the MS_ACTIVE flag to avoid doing anything
+ * during mount. Doing work during unmount is avoided by calling
+ * cancel_delayed_work_sync on this work queue before tearing down
+ * the ail and the log in xfs_log_unmount.
*/
- if (down_read_trylock(&mp->m_super->s_umount)) {
- if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
- /* dgc: errors ignored here */
- if (mp->m_super->s_frozen == SB_UNFROZEN &&
- xfs_log_need_covered(mp))
- error = xfs_fs_log_dummy(mp);
- else
- xfs_log_force(mp, 0);
-
- /* start pushing all the metadata that is currently
- * dirty */
- xfs_ail_push_all(mp->m_ail);
- }
- up_read(&mp->m_super->s_umount);
+ if (!(mp->m_super->s_flags & MS_ACTIVE) &&
+ !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+ /* dgc: errors ignored here */
+ if (mp->m_super->s_frozen == SB_UNFROZEN &&
+ xfs_log_need_covered(mp))
+ error = xfs_fs_log_dummy(mp);
+ else
+ xfs_log_force(mp, 0);
+
+ /* start pushing all the metadata that is currently
+ * dirty */
+ xfs_ail_push_all(mp->m_ail);
}
/* queue us up again */