btrfs/022: add a quota rescan -w to wait rescan finished.

When we enable quota, btrfs will rescan quota numbers. We need
to wait the rescan finished before any more operations on btrfs
qgroups. Otherwith, the new btrfs-progs would WARN out:

WARNING: Rescan is running, qgroup data may be incorrect.

It would make btrfs/022 failed.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/tests/btrfs/022 b/tests/btrfs/022
index 5c1a82d7975732a1999aa2d2be4f70cd83f9fddd..56d4f3d405be5bd6b5cba8bdd77f6fad1b694714 100755 (executable)
--- a/tests/btrfs/022
+++ b/tests/btrfs/022
@@ -51,6 +51,7 @@ _basic_test()
 {
        _run_btrfs_util_prog subvolume create $SCRATCH_MNT/a
        _run_btrfs_util_prog quota enable $SCRATCH_MNT/a
+       _run_btrfs_util_prog quota rescan -w $SCRATCH_MNT
        subvolid=$(_btrfs_get_subvolid $SCRATCH_MNT a)
        $BTRFS_UTIL_PROG qgroup show $units $SCRATCH_MNT | grep $subvolid >> \
                $seqres.full 2>&1