dm: introduce enum dm_queue_mode to cleanup related code
Introduce an enumeration type for the queue mode. This patch does
not change any functionality but makes the DM code easier to read.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index 136fda3..b92f74d 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -47,7 +47,7 @@ struct mapped_device {
struct request_queue *queue;
int numa_node_id;
- unsigned type;
+ enum dm_queue_mode type;
/* Protect queue and type against concurrent access. */
struct mutex type_lock;