On Tue, Mar 09, 2021 at 10:31:12AM +0530, Chandan Babu R wrote: > 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> Looks good to me, Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx> --D > --- > common/xfs | 11 +++++++++++ > 1 file changed, 11 insertions(+) > > diff --git a/common/xfs b/common/xfs > index 2156749d..41dd8676 100644 > --- a/common/xfs > +++ b/common/xfs > @@ -467,6 +467,17 @@ _check_xfs_filesystem() > # Run online scrub if we can. > mntpt="$(_is_dev_mounted $device)" > if [ -n "$mntpt" ] && _supports_xfs_scrub "$mntpt" "$device"; then > + # 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 > + # such a 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. Hence consume such a possible syncfs() failure > + # before executing a scrub operation. > + $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 >
