fstests: introduce _exclude_scratch_mount_option helper

Some tests require that there's no certain mount option in
MKFS_OPTIONS, so introduce a new helper
_exclude_scratch_mount_option() to do the check on $MOUNT_OPTIONS.

Also convert generic/192 and xfs/134 to use this helper.

Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>

common/rc

@@ -2926,8 +2926,17 @@ _require_cloner()
 		_notrun "cloner binary not present at $CLONER_PROG"
 }
 
+# skip test if MKFS_OPTIONS contains the given string
+_exclude_scratch_mount_option()
+{
+	if echo $MOUNT_OPTIONS | grep -q "$1"; then
+		_notrun "mount option \"$1\" not allowed in this test"
+	fi
+}
+
 _require_atime()
 {
+	_exclude_scratch_mount_option "noatime"
 	if [ "$FSTYP" == "nfs" ]; then
 		_notrun "atime related mount options have no effect on NFS"
 	fi

tests/generic/192

@@ -38,13 +38,6 @@ _access_time()
 	stat -c %X $1
 }
 
-is_noatime_set() {
-	case "$MOUNT_OPTIONS" in
-		*noatime*) return 0;;
-	esac
-	return 1
-}
-
 # get standard environment, filters and checks
 . ./common/rc
 . ./common/filter
@@ -61,10 +54,6 @@ _require_atime
 #delay=45
 delay=40
 
-if is_noatime_set; then
-	_notrun "this test makes no sense with noatime"
-fi
-
 testfile=$TEST_DIR/testfile
 rm -f $testfile
 rm -f $seqres.full

tests/xfs/134

@@ -50,6 +50,9 @@ _supported_os Linux IRIX
 
 _require_test
 _require_xfs_quota
+# we can't run with group quotas
+_exclude_scratch_mount_option "gquota"
+_exclude_scratch_mount_option "grpquota"
 
 dir=$SCRATCH_MNT/project
 
@@ -70,11 +73,6 @@ _scratch_mkfs_xfs >/dev/null 2>&1
 
 #if pquota's already in mount options then we dont need to enable
 
-# we can't run with group quotas
-if ( `echo $MOUNT_OPTIONS | grep -q gquota` || `echo $MOUNT_OPTIONS | grep -q grpquota` )
-then
-    _notrun "Can't run with group quotas enabled"
-fi
 EXTRA_MOUNT_OPTIONS="-o pquota"
 
 if ! _scratch_mount "$EXTRA_MOUNT_OPTIONS" >$tmp.out 2>&1