From: Darrick J. Wong <djwong@xxxxxxxxxx>
When we're scrubbing the COW fork, we need to take MMAPLOCK_EXCL to
prevent page_mkwrite from modifying any inode state. The ILOCK should
suffice to avoid confusing online fsck, but let's take the same locks
that we do everywhere else.
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
fs/xfs/scrub/bmap.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
index 87ab9f95a487..69bc89d0fc68 100644
--- a/fs/xfs/scrub/bmap.c
+++ b/fs/xfs/scrub/bmap.c
@@ -42,12 +42,12 @@ xchk_setup_inode_bmap(
xfs_ilock(sc->ip, XFS_IOLOCK_EXCL);
/*
- * We don't want any ephemeral data fork updates sitting around
+ * We don't want any ephemeral data/cow fork updates sitting around
* while we inspect block mappings, so wait for directio to finish
* and flush dirty data if we have delalloc reservations.
*/
if (S_ISREG(VFS_I(sc->ip)->i_mode) &&
- sc->sm->sm_type == XFS_SCRUB_TYPE_BMBTD) {
+ sc->sm->sm_type != XFS_SCRUB_TYPE_BMBTA) {
struct address_space *mapping = VFS_I(sc->ip)->i_mapping;
sc->ilock_flags |= XFS_MMAPLOCK_EXCL;
