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| author | Jens Axboe <axboe@kernel.dk> | 2018-10-29 13:11:38 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-07 13:44:59 -0700 |
| commit | f9afca4d367b8c915f28d29fcaba7460640403ff (patch) | |
| tree | 452e46a75ae18332d1d795b32554943de47db4c2 /block/blk-mq-sched.c | |
| parent | ff2c56609d9b1f0739ae3a3bfdb78191d01e4192 (diff) | |
| download | linux-f9afca4d367b8c915f28d29fcaba7460640403ff.tar.gz linux-f9afca4d367b8c915f28d29fcaba7460640403ff.tar.bz2 linux-f9afca4d367b8c915f28d29fcaba7460640403ff.zip | |
blk-mq: pass in request/bio flags to queue mapping
Prep patch for being able to place request based not just on
CPU location, but also on the type of request.
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq-sched.c')
| -rw-r--r-- | block/blk-mq-sched.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c index 0feefd6c6aaa..68087bf71a61 100644 --- a/block/blk-mq-sched.c +++ b/block/blk-mq-sched.c @@ -310,7 +310,7 @@ bool __blk_mq_sched_bio_merge(struct request_queue *q, struct bio *bio) { struct elevator_queue *e = q->elevator; struct blk_mq_ctx *ctx = blk_mq_get_ctx(q); - struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu); + struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, bio->bi_opf, ctx->cpu); bool ret = false; if (e && e->type->ops.bio_merge) { @@ -366,7 +366,9 @@ void blk_mq_sched_insert_request(struct request *rq, bool at_head, struct request_queue *q = rq->q; struct elevator_queue *e = q->elevator; struct blk_mq_ctx *ctx = rq->mq_ctx; - struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu); + struct blk_mq_hw_ctx *hctx; + + hctx = blk_mq_map_queue(q, rq->cmd_flags, ctx->cpu); /* flush rq in flush machinery need to be dispatched directly */ if (!(rq->rq_flags & RQF_FLUSH_SEQ) && op_is_flush(rq->cmd_flags)) { @@ -399,9 +401,15 @@ void blk_mq_sched_insert_requests(struct request_queue *q, struct blk_mq_ctx *ctx, struct list_head *list, bool run_queue_async) { - struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu); - struct elevator_queue *e = hctx->queue->elevator; + struct blk_mq_hw_ctx *hctx; + struct elevator_queue *e; + struct request *rq; + + /* For list inserts, requests better be on the same hw queue */ + rq = list_first_entry(list, struct request, queuelist); + hctx = blk_mq_map_queue(q, rq->cmd_flags, ctx->cpu); + e = hctx->queue->elevator; if (e && e->type->ops.insert_requests) e->type->ops.insert_requests(hctx, list, false); else { |