diff options
| author | Chengming Zhou <zhouchengming@bytedance.com> | 2023-09-13 15:16:15 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-09-22 08:52:13 -0600 |
| commit | 217b613a53d3a430aa2e5d1523819dc271f02ff0 (patch) | |
| tree | 0f5fd4caece6578b8981ff613110f75034892498 | |
| parent | 434097ee375fff36bc5037524609ffd6199f11da (diff) | |
blk-mq: update driver tags request table when start request
Now we update driver tags request table in blk_mq_get_driver_tag(),
so the driver that support queue_rqs() have to update that inflight
table by itself.
Move it to blk_mq_start_request(), which is a better place where
we setup the deadline for request timeout check. And it's just
where the request becomes inflight.
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Link: https://lore.kernel.org/r/20230913151616.3164338-5-chengming.zhou@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-mq.c | 1 | ||||
| -rw-r--r-- | block/blk-mq.h | 3 | ||||
| -rw-r--r-- | drivers/block/virtio_blk.c | 2 | ||||
| -rw-r--r-- | drivers/nvme/host/pci.c | 1 |
4 files changed, 1 insertions, 6 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 68ce9357463b..e2d11183f62e 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -1259,6 +1259,7 @@ void blk_mq_start_request(struct request *rq) blk_add_timer(rq); WRITE_ONCE(rq->state, MQ_RQ_IN_FLIGHT); + rq->mq_hctx->tags->rqs[rq->tag] = rq; #ifdef CONFIG_BLK_DEV_INTEGRITY if (blk_integrity_rq(rq) && req_op(rq) == REQ_OP_WRITE) diff --git a/block/blk-mq.h b/block/blk-mq.h index 560a76df290a..f75a9ecfebde 100644 --- a/block/blk-mq.h +++ b/block/blk-mq.h @@ -351,12 +351,9 @@ bool __blk_mq_alloc_driver_tag(struct request *rq); static inline bool blk_mq_get_driver_tag(struct request *rq) { - struct blk_mq_hw_ctx *hctx = rq->mq_hctx; - if (rq->tag == BLK_MQ_NO_TAG && !__blk_mq_alloc_driver_tag(rq)) return false; - hctx->tags->rqs[rq->tag] = rq; return true; } diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 1fe011676d07..4689ac2e0c0e 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -470,8 +470,6 @@ static bool virtblk_prep_rq_batch(struct request *req) struct virtio_blk *vblk = req->mq_hctx->queue->queuedata; struct virtblk_req *vbr = blk_mq_rq_to_pdu(req); - req->mq_hctx->tags->rqs[req->tag] = req; - return virtblk_prep_rq(req->mq_hctx, vblk, req, vbr) == BLK_STS_OK; } diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 347cb5daebc3..60a08dfe8d75 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -924,7 +924,6 @@ static bool nvme_prep_rq_batch(struct nvme_queue *nvmeq, struct request *req) if (unlikely(!nvme_check_ready(&nvmeq->dev->ctrl, req, true))) return false; - req->mq_hctx->tags->rqs[req->tag] = req; return nvme_prep_rq(nvmeq->dev, req) == BLK_STS_OK; } |