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authorChristoph Hellwig <hch@lst.de>2017-06-03 09:38:05 +0200
committerJens Axboe <axboe@fb.com>2017-06-09 09:27:32 -0600
commitfc17b6534eb8395f0b3133eb31d87deec32c642b (patch)
tree18686a2326ebd60d68f144c70f83f4441c6b4e2f /drivers/md/dm-rq.c
parent2a842acab109f40f0d7d10b38e9ca88390628996 (diff)
blk-mq: switch ->queue_rq return value to blk_status_t
Use the same values for use for request completion errors as the return value from ->queue_rq. BLK_STS_RESOURCE is special cased to cause a requeue, and all the others are completed as-is. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/dm-rq.c')
-rw-r--r--drivers/md/dm-rq.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index bee334389173..63402f8a38de 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -727,7 +727,7 @@ static int dm_mq_init_request(struct blk_mq_tag_set *set, struct request *rq,
return __dm_rq_init_rq(set->driver_data, rq);
}
-static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
+static blk_status_t dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
const struct blk_mq_queue_data *bd)
{
struct request *rq = bd->rq;
@@ -744,7 +744,7 @@ static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
}
if (ti->type->busy && ti->type->busy(ti))
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
dm_start_request(md, rq);
@@ -762,10 +762,10 @@ static int dm_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
rq_end_stats(md, rq);
rq_completed(md, rq_data_dir(rq), false);
blk_mq_delay_run_hw_queue(hctx, 100/*ms*/);
- return BLK_MQ_RQ_QUEUE_BUSY;
+ return BLK_STS_RESOURCE;
}
- return BLK_MQ_RQ_QUEUE_OK;
+ return BLK_STS_OK;
}
static const struct blk_mq_ops dm_mq_ops = {