[fstests PATCH v4 1/4] common/rc: add _scratch_has_mount_option()

[Ross Zwisler <ross.zwisler@linux.intel.com>]

Allow tests to inquire about whether a mount option is set, rather than
just disallowing it via _exclude_scratch_mount_option().

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Suggested-by: Amir Goldstein <amir73il@gmail.com>
---
 common/rc | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/common/rc b/common/rc
index 0cda9da..701b1ff 100644
--- a/common/rc
+++ b/common/rc
@@ -3105,6 +3105,16 @@ _exclude_scratch_mount_option()
 	done
 }
 
+_scratch_has_mount_option()
+{
+	local mnt_opts=$(_normalize_mount_options)
+
+	if echo $mnt_opts | grep -qw "$1"; then
+		return 0
+	fi
+	return 1
+}
+
 _require_atime()
 {
 	_exclude_scratch_mount_option "noatime"
-- 
2.9.5