diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-06-29 17:08:34 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-06-29 09:56:18 -0600 |
| commit | 42fdc5e49c2be97db112d410d07044e0e2c7d5bb (patch) | |
| tree | f3923dcec161cef0dd153e8cfb5fe7cf062d3eb3 /block | |
| parent | 36a3df5a4574d5ddf59804fcd0c4e9654c514d9a (diff) | |
| download | lwn-42fdc5e49c2be97db112d410d07044e0e2c7d5bb.tar.gz lwn-42fdc5e49c2be97db112d410d07044e0e2c7d5bb.zip | |
blk-mq: remove the BLK_MQ_REQ_INTERNAL flag
Just check for a non-NULL elevator directly to make the code more clear.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-mq-tag.c | 4 | ||||
| -rw-r--r-- | block/blk-mq.c | 10 | ||||
| -rw-r--r-- | block/blk-mq.h | 2 |
3 files changed, 6 insertions, 10 deletions
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c index ae722f8b13fb..281367b04527 100644 --- a/block/blk-mq-tag.c +++ b/block/blk-mq-tag.c @@ -90,9 +90,9 @@ static inline bool hctx_may_queue(struct blk_mq_hw_ctx *hctx, static int __blk_mq_get_tag(struct blk_mq_alloc_data *data, struct sbitmap_queue *bt) { - if (!(data->flags & BLK_MQ_REQ_INTERNAL) && - !hctx_may_queue(data->hctx, bt)) + if (!data->q->elevator && !hctx_may_queue(data->hctx, bt)) return BLK_MQ_NO_TAG; + if (data->shallow_depth) return __sbitmap_queue_get_shallow(bt, data->shallow_depth); else diff --git a/block/blk-mq.c b/block/blk-mq.c index d07e55455726..72d3034fe39d 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -279,7 +279,7 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data, struct request *rq = tags->static_rqs[tag]; req_flags_t rq_flags = 0; - if (data->flags & BLK_MQ_REQ_INTERNAL) { + if (data->q->elevator) { rq->tag = BLK_MQ_NO_TAG; rq->internal_tag = tag; } else { @@ -364,8 +364,6 @@ static struct request *__blk_mq_alloc_request(struct blk_mq_alloc_data *data) data->flags |= BLK_MQ_REQ_NOWAIT; if (e) { - data->flags |= BLK_MQ_REQ_INTERNAL; - /* * Flush requests are special and go directly to the * dispatch list. Don't include reserved tags in the @@ -380,7 +378,7 @@ static struct request *__blk_mq_alloc_request(struct blk_mq_alloc_data *data) retry: data->ctx = blk_mq_get_ctx(q); data->hctx = blk_mq_map_queue(q, data->cmd_flags, data->ctx); - if (!(data->flags & BLK_MQ_REQ_INTERNAL)) + if (!e) blk_mq_tag_busy(data->hctx); /* @@ -476,9 +474,7 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q, cpu = cpumask_first_and(data.hctx->cpumask, cpu_online_mask); data.ctx = __blk_mq_get_ctx(q, cpu); - if (q->elevator) - data.flags |= BLK_MQ_REQ_INTERNAL; - else + if (!q->elevator) blk_mq_tag_busy(data.hctx); ret = -EWOULDBLOCK; diff --git a/block/blk-mq.h b/block/blk-mq.h index b3ce0f3a2ad2..c6330335767c 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -159,7 +159,7 @@ struct blk_mq_alloc_data { static inline struct blk_mq_tags *blk_mq_tags_from_data(struct blk_mq_alloc_data *data) { - if (data->flags & BLK_MQ_REQ_INTERNAL) + if (data->q->elevator) return data->hctx->sched_tags; return data->hctx->tags; |