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btrfs/012: add a regression test for deleting ext2_saved

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Btrfs now has changed to delete subvolume/snapshot asynchronously,
which means that after umount, if we've already deleted 'ext2_saved',
rollback can still be completed, which should not.

So this adds a regression test for this.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Liu Bo
2015-11-02 11:00:48 +11:00
committed by Dave Chinner
parent 8c947974a2
commit 17f7ca2c11
1 changed files with 12 additions and 0 deletions
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tests/btrfs/012
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@@ -112,6 +112,18 @@ diff -r /lib/modules/`uname -r`/ $SCRATCH_MNT/`uname -r`/ 2>&1 | grep -vw "sourc
_scratch_unmount _scratch_unmount
# Convert it to btrfs, mount it and delete "ext2_saved"
$BTRFS_CONVERT_PROG $SCRATCH_DEV >> $seqres.full 2>&1 || \
_fail "btrfs-convert failed"
_scratch_mount || _fail "Could not mount new btrfs fs"
$BTRFS_UTIL_PROG subvolume delete $SCRATCH_MNT/ext2_saved >> $seqres.full 2>&1 ||
_fail "failed to delete ext2_saved subvolume"
_scratch_unmount
# Now restore the ext4 device, expecting a failure
$BTRFS_CONVERT_PROG -r $SCRATCH_DEV >> $seqres.full 2>&1
[ $? -eq 1 ] || _fail "Failure is expected, but btrfs-convert returns with rollback complete"
# success, all done # success, all done
status=0 status=0
exit exit