[PATCH V5 01/13] _check_xfs_filesystem: sync fs before running scrub

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Tests can create a scenario in which a call to syncfs() issued at the end of
the execution of the test script would return an error code. xfs_scrub
internally calls syncfs() before starting the actual online consistency check
operation. Since this call to syncfs() fails, xfs_scrub ends up returning
without performing consistency checks on the test filesystem. This can mask a
possible on-disk data structure corruption.

To fix the above stated problem, this commit invokes syncfs() prior to
executing xfs_scrub.

Suggested-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Chandan Babu R <chandanrlinux@xxxxxxxxx>
---
 common/xfs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common/xfs b/common/xfs
index 2156749d..7ec89492 100644
--- a/common/xfs
+++ b/common/xfs
@@ -467,6 +467,7 @@ _check_xfs_filesystem()
 	# Run online scrub if we can.
 	mntpt="$(_is_dev_mounted $device)"
 	if [ -n "$mntpt" ] && _supports_xfs_scrub "$mntpt" "$device"; then
+		$XFS_IO_PROG -c syncfs $mntpt >> $seqres.full 2>&1
 		"$XFS_SCRUB_PROG" $scrubflag -v -d -n $mntpt > $tmp.scrub 2>&1
 		if [ $? -ne 0 ]; then
 			_log_err "_check_xfs_filesystem: filesystem on $device failed scrub"
-- 
2.29.2




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