[PATCH v8 02/13] fstests: add _clone_mount_option() helper

Anand Jain <[email protected]> Sat, 25 Jul 2026 15:38:59 +0800
Newsgroups org.kernel.vger.fstests,net.sourceforge.lists.linux-f2fs-devel,org.kernel.vger.linux-btrfs,org.kernel.vger.linux-ext4,org.kernel.vger.linux-xfs
Message-ID <75ceae4b427ab53c921af395854794b78d7e07a9.1784949154.git.asj@kernel.org>
Adds _clone_mount_option() helper function to handle filesystem-specific
requirements for mounting cloned devices. Abstract the need for -o nouuid
on XFS.

Signed-off-by: Anand Jain <[email protected]>
Reviewed-by: "Darrick J. Wong" <[email protected]>
---
 common/rc | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/common/rc b/common/rc
index e8ff5be0c547..53e5d9d43af6 100644
--- a/common/rc
+++ b/common/rc
@@ -414,6 +414,19 @@ _scratch_mount_options()
 					$SCRATCH_DEV $SCRATCH_MNT
 }
 
+# Return filesystem-specific mount options required for mounting clone/snapshot
+# devices.
+_clone_mount_option()
+{
+	case "$FSTYP" in
+	xfs)
+		# Allow mounting a duplicate filesystem on the same host
+		echo "-o nouuid"
+		;;
+	*)
+	esac
+}
+
 _supports_filetype()
 {
 	local dir=$1
-- 
2.43.0