[dm-devel] [PATCH 5/5] dm-multipath: remove map_io()

Hannes Reinecke hare at suse.de
Fri Jan 31 09:10:44 UTC 2014


multipath_map() is now just a wrapper around map_io(), so we
can fold both into multipath_map().

Signed-off-by: Hannes Reinecke <hare at suse.de>
---
 drivers/md/dm-mpath.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 7146f7b..4974aac 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -369,9 +369,13 @@ static int __must_push_back(struct multipath *m)
 
 #define pg_ready(m) (!(m)->queue_io && !(m)->pg_init_required)
 
-static int map_io(struct multipath *m, struct request *clone,
-		  union map_info *map_context)
+/*
+ * Map cloned requests
+ */
+static int multipath_map(struct dm_target *ti, struct request *clone,
+			 union map_info *map_context)
 {
+	struct multipath *m = (struct multipath *) ti->private;
 	int r = DM_MAPIO_REQUEUE;
 	size_t nr_bytes = blk_rq_bytes(clone);
 	unsigned long flags;
@@ -905,17 +909,6 @@ static void multipath_dtr(struct dm_target *ti)
 }
 
 /*
- * Map cloned requests
- */
-static int multipath_map(struct dm_target *ti, struct request *clone,
-			 union map_info *map_context)
-{
-	struct multipath *m = (struct multipath *) ti->private;
-
-	return map_io(m, clone, map_context);
-}
-
-/*
  * Take a path out of use.
  */
 static int fail_path(struct pgpath *pgpath)
-- 
1.7.12.4




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