[PATCH 8/8] xfs: filter out mount options that don't work on v4 filesystems

["Darrick J. Wong" <darrick.wong@oracle.com>]

From: Darrick J. Wong <darrick.wong@oracle.com>

A few tests require v4 filesystems and enforce this by disabling crc's
in the _scratch_mkfs call.  However, if the user specified MOUNT_OPTIONS
that only work with v5 filesystems, these tests fail.  If we detect a
test creating a v4 scratch filesystem, filter out incompatible mount
options that don't work on v4, such as simultaneous group/project quota.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 common/xfs |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)


diff --git a/common/xfs b/common/xfs
index 80340b0d..484e6ab6 100644
--- a/common/xfs
+++ b/common/xfs
@@ -89,6 +89,7 @@ _scratch_mkfs_xfs()
 	_scratch_do_mkfs "$mkfs_cmd" "$mkfs_filter" $* 2>$tmp.mkfserr 1>$tmp.mkfsstd
 	mkfs_status=$?
 
+	grep -q crc=0 $tmp.mkfsstd && _force_xfsv4_mount_options
 
 	if [ $mkfs_status -eq 0 -a "$LARGE_SCRATCH_DEV" = yes ]; then
 		# manually parse the mkfs output to get the fs size in bytes
@@ -779,3 +780,26 @@ _scratch_get_bmx_prefix() {
 	_scratch_xfs_db -c "inode ${ino}" -c 'p' >> $seqres.full
 	return 1
 }
+
+#
+# Ensures that we don't pass any mount options incompatible with XFS v4
+#
+_force_xfsv4_mount_options()
+{
+	local gquota=0
+	local pquota=0
+
+	# Can't have group and project quotas in XFS v4
+	echo "$MOUNT_OPTIONS" | egrep -q "(gquota|grpquota|grpjquota=|gqnoenforce)" && gquota=1
+	echo "$MOUNT_OPTIONS" | egrep -q "(\bpquota|prjquota|pqnoenforce)" && pquota=1
+
+	if [ $gquota -gt 0 ] && [ $pquota -gt 0 ]; then
+		export MOUNT_OPTIONS=$(echo $MOUNT_OPTIONS \
+			| sed   -e 's/gquota/QUOTA/g'      \
+				-e 's/grpquota/QUOTA/g'    \
+				-e 's/grpjquota=[^, ]/QUOTA/g' \
+				-e 's/gqnoenforce/QUOTA/g' \
+				-e "s/QUOTA/defaults/g")
+	fi
+	echo "MOUNT_OPTIONS = $MOUNT_OPTIONS" >>$seqres.full
+}