From 0d851d14b8dfed601e165ccec2819cab492442d8 Mon Sep 17 00:00:00 2001
From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Wed, 15 Jun 2016 18:43:55 +0200
Subject: [PATCH] dm raid: prohibit to pass in both sync and nosync ctr flags
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
drivers/md/dm-raid.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 4bf7747a25a9..e8e9b6abe133 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -1297,6 +1297,12 @@ static int parse_raid_params(struct raid_set *rs, struct dm_arg_set *as,
}
}
+ if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags) &&
+ test_bit(__CTR_FLAG_NOSYNC, &rs->ctr_flags)) {
+ rs->ti->error = "sync and nosync are mutually exclusive";
+ return -EINVAL;
+ }
+
if (validate_region_size(rs, region_size))
return -EINVAL;
--
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