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authorJens Axboe <axboe@fb.com>2015-11-05 10:41:16 -0700
committerJens Axboe <axboe@fb.com>2015-11-07 10:40:46 -0700
commitdece16353ef47d8d33f5302bc158072a9d65e26f (patch)
tree75438980d0f76c155bab11ddb5f1f1600fcaee13 /drivers/md/dm.c
parent8e483ed1342a4ea45b70f0f33ac54eff7a33d918 (diff)
downloadlinux-dece16353ef47d8d33f5302bc158072a9d65e26f.tar.gz
block: change ->make_request_fn() and users to return a queue cookie
No functional changes in this patch, but it prepares us for returning
a more useful cookie related to the IO that was queued up.

Signed-off-by: Jens Axboe <axboe@fb.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Keith Busch <keith.busch@intel.com>
Diffstat (limited to 'drivers/md/dm.c')
-rw-r--r--drivers/md/dm.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 32440ad5f684..6e15f3565892 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1755,7 +1755,7 @@ static void __split_and_process_bio(struct mapped_device *md,
  * The request function that just remaps the bio built up by
  * dm_merge_bvec.
  */
-static void dm_make_request(struct request_queue *q, struct bio *bio)
+static blk_qc_t dm_make_request(struct request_queue *q, struct bio *bio)
 {
 	int rw = bio_data_dir(bio);
 	struct mapped_device *md = q->queuedata;
@@ -1774,12 +1774,12 @@ static void dm_make_request(struct request_queue *q, struct bio *bio)
 			queue_io(md, bio);
 		else
 			bio_io_error(bio);
-		return;
+		return BLK_QC_T_NONE;
 	}
 
 	__split_and_process_bio(md, map, bio);
 	dm_put_live_table(md, srcu_idx);
-	return;
+	return BLK_QC_T_NONE;
 }
 
 int dm_request_based(struct mapped_device *md)