common/xfs: Add function to detect support for metadump v2

This commit defines a new function to help detect support for metadump v2.

Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Zorro Lang <zlang@kernel.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/common/xfs b/common/xfs
index 91b8ac38..49c5df15 100644
--- a/common/xfs
+++ b/common/xfs
@@ -708,6 +708,12 @@ _xfs_mdrestore() {
 	$XFS_MDRESTORE_PROG $options "${metadump}" "${device}"
 }
 
+_scratch_metadump_v2_supported()
+{
+	$XFS_DB_PROG -c "help metadump" $SCRATCH_DEV | \
+		grep -q "Metadump version to be used"
+}
+
 # Snapshot the metadata on the scratch device
 _scratch_xfs_metadump()
 {