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authorDavid S. Miller <davem@davemloft.net>2012-06-28 17:37:00 -0700
committerDavid S. Miller <davem@davemloft.net>2012-06-28 17:37:00 -0700
commitb26d344c6b87058ae3e8f919a18580abfc4204eb (patch)
treeff7026df8e8715e3c63d0ff4ff697a9fac6323fb /fs/xfs/xfs_sync.c
parent82aee5d7c01fd1a398e938e496e6cb8841775f91 (diff)
parent76fbc247b9aebc30f6d2c8ec1f69edcb68eaa328 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/caif/caif_hsi.c drivers/net/usb/qmi_wwan.c The qmi_wwan merge was trivial. The caif_hsi.c, on the other hand, was not. It's a conflict between 1c385f1fdf6f9c66d982802cd74349c040980b50 ("caif-hsi: Replace platform device with ops structure.") in the net-next tree and commit 39abbaef19cd0a30be93794aa4773c779c3eb1f3 ("caif-hsi: Postpone init of HIS until open()") in the net tree. I did my best with that one and will ask Sjur to check it out. Signed-off-by: David S. Miller <davem@davemloft.net>
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 */