From c39c6c773d61457460fcbe4209816db53cd3cad7 Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Wed, 23 Aug 2017 10:56:31 -0700 Subject: [PATCH] skd: Inline skd_process_request() This patch does not change any functionality but makes the skd driver code more similar to that of other blk-mq kernel drivers. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Hannes Reinecke Cc: Johannes Thumshirn Signed-off-by: Jens Axboe --- drivers/block/skd_main.c | 30 ++++++++++-------------------- 1 file changed, 10 insertions(+), 20 deletions(-) diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c index d21fc76c5ed9..0d6340884009 100644 --- a/drivers/block/skd_main.c +++ b/drivers/block/skd_main.c @@ -478,8 +478,10 @@ static bool skd_fail_all(struct request_queue *q) } } -static void skd_process_request(struct request *req, bool last) +static blk_status_t skd_mq_queue_rq(struct blk_mq_hw_ctx *hctx, + const struct blk_mq_queue_data *mqd) { + struct request *const req = mqd->rq; struct request_queue *const q = req->q; struct skd_device *skdev = q->queuedata; struct skd_fitmsg_context *skmsg; @@ -492,6 +494,11 @@ static void skd_process_request(struct request *req, bool last) const u32 count = blk_rq_sectors(req); const int data_dir = rq_data_dir(req); + if (unlikely(skdev->state != SKD_DRVR_STATE_ONLINE)) + return skd_fail_all(q) ? BLK_STS_IOERR : BLK_STS_RESOURCE; + + blk_mq_start_request(req); + WARN_ONCE(tag >= skd_max_queue_depth, "%#x > %#x (nr_requests = %lu)\n", tag, skd_max_queue_depth, q->nr_requests); @@ -514,7 +521,7 @@ static void skd_process_request(struct request *req, bool last) dev_dbg(&skdev->pdev->dev, "error Out\n"); skd_end_request(skdev, blk_mq_rq_from_pdu(skreq), BLK_STS_RESOURCE); - return; + return BLK_STS_OK; } dma_sync_single_for_device(&skdev->pdev->dev, skreq->sksg_dma_address, @@ -578,30 +585,13 @@ static void skd_process_request(struct request *req, bool last) if (skd_max_req_per_msg == 1) { skd_send_fitmsg(skdev, skmsg); } else { - if (last || + if (mqd->last || fmh->num_protocol_cmds_coalesced >= skd_max_req_per_msg) { skd_send_fitmsg(skdev, skmsg); skdev->skmsg = NULL; } spin_unlock_irqrestore(&skdev->lock, flags); } -} - -static blk_status_t skd_mq_queue_rq(struct blk_mq_hw_ctx *hctx, - const struct blk_mq_queue_data *mqd) -{ - struct request *req = mqd->rq; - struct request_queue *q = req->q; - struct skd_device *skdev = q->queuedata; - - if (skdev->state == SKD_DRVR_STATE_ONLINE) { - blk_mq_start_request(req); - skd_process_request(req, mqd->last); - - return BLK_STS_OK; - } else { - return skd_fail_all(q) ? BLK_STS_IOERR : BLK_STS_RESOURCE; - } return BLK_STS_OK; } -- 2.20.1