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>
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 4bf7747..e8e9b6a 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -1297,6 +1297,12 @@
}
}
+ 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;