[PATCH 3/8 v4] common/rc: add _require_norecovery

[Jaegeuk Kim <jaegeuk@kernel.org>]

This patch adds checking code whether filesystem supports norecovery mount
option or not.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
---
 common/rc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/common/rc b/common/rc
index d413721..72e2f99 100644
--- a/common/rc
+++ b/common/rc
@@ -2331,6 +2331,14 @@ _require_scratch_shutdown()
 	_scratch_unmount
 }
 
+# Does norecovery support by this fs?
+_require_norecovery()
+{
+        _scratch_mount -o ro,norecovery || \
+                _notrun "$FSTYP does not support norecovery"
+	_scratch_unmount
+}
+
 # Does bmap work on this fs?
 _require_bmap()
 {
-- 
2.1.1