summaryrefslogtreecommitdiff
path: root/include/linux/blk-mq.h
diff options
context:
space:
mode:
authorJens Axboe <axboe@fb.com>2014-06-04 10:23:49 -0600
committerJens Axboe <axboe@fb.com>2014-06-04 10:23:49 -0600
commit0e62f51f8753b048f391ee2d7f2af1f7297b0be5 (patch)
tree3cd2ad45a7f0cb9e97995e57be61432e9f0d34d3 /include/linux/blk-mq.h
parentf899fed4421d6b098ed6a9d69303c70e590bf2c0 (diff)
downloadlwn-0e62f51f8753b048f391ee2d7f2af1f7297b0be5.tar.gz
lwn-0e62f51f8753b048f391ee2d7f2af1f7297b0be5.zip
blk-mq: let blk_mq_tag_to_rq() take blk_mq_tags as the main parameter
We currently pass in the hardware queue, and get the tags from there. But from scsi-mq, with a shared tag space, it's a lot more convenient to pass in the blk_mq_tags instead as the hardware queue isn't always directly available. So instead of having to re-map to a given hardware queue from rq->mq_ctx, just pass in the tags structure. Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/blk-mq.h')
-rw-r--r--include/linux/blk-mq.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index c15128833100..0feedebfde48 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -155,7 +155,7 @@ void blk_mq_free_request(struct request *rq);
bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
gfp_t gfp, bool reserved);
-struct request *blk_mq_tag_to_rq(struct blk_mq_hw_ctx *hctx, unsigned int tag);
+struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_index);
struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_tag_set *, unsigned int, int);