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authorBart Van Assche <bart.vanassche@wdc.com>2017-08-23 19:56:31 +0200
committerJens Axboe <axboe@kernel.dk>2017-08-23 20:02:33 +0200
commitc39c6c773d61457460fcbe4209816db53cd3cad7 (patch)
treeeb999cdfb8668a27d2b15693058ac7aef79f771b /drivers/block/skd_main.c
parentskd: Report completion mismatches once (diff)
downloadlinux-c39c6c773d61457460fcbe4209816db53cd3cad7.tar.xz
linux-c39c6c773d61457460fcbe4209816db53cd3cad7.zip
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 <bart.vanassche@wdc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hannes Reinecke <hare@suse.de> Cc: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/skd_main.c')
-rw-r--r--drivers/block/skd_main.c30
1 files 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;
}