Home Home > GIT Browse
summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorZorro Lang <zlang@redhat.com>2017-05-15 08:40:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-06-07 12:01:53 +0200
commit0d600519110225537db4fe1be833cfc9970ff0f9 (patch)
tree51f5e5213725c1808eadccdaa99d53fe2bb2cc9f
parent6e12db5d35a69157178dc215bfd31d79e6069698 (diff)
xfs: bad assertion for delalloc an extent that start at i_size
commit 892d2a5f705723b2cb488bfb38bcbdcf83273184 upstream. By run fsstress long enough time enough in RHEL-7, I find an assertion failure (harder to reproduce on linux-4.11, but problem is still there): XFS: Assertion failed: (iflags & BMV_IF_DELALLOC) != 0, file: fs/xfs/xfs_bmap_util.c The assertion is in xfs_getbmap() funciton: if (map[i].br_startblock == DELAYSTARTBLOCK && --> map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip))) ASSERT((iflags & BMV_IF_DELALLOC) != 0); When map[i].br_startoff == XFS_B_TO_FSB(mp, XFS_ISIZE(ip)), the startoff is just at EOF. But we only need to make sure delalloc extents that are within EOF, not include EOF. Signed-off-by: Zorro Lang <zlang@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/xfs/xfs_bmap_util.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index f7af2eeacbd4..114a3bf94de2 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -659,7 +659,7 @@ xfs_getbmap(
* extents.
*/
if (map[i].br_startblock == DELAYSTARTBLOCK &&
- map[i].br_startoff <= XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
+ map[i].br_startoff < XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
ASSERT((iflags & BMV_IF_DELALLOC) != 0);
if (map[i].br_startblock == HOLESTARTBLOCK &&