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blk-mq: remove non-blocking pass in blk_mq_map_request

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bt_get already does a non-blocking pass as well as running the queue
when scheduling internally, no need to duplicate it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Christoph Hellwig 2016-09-22 11:38:23 -07:00 committed by Jens Axboe
parent 841bac2c87
commit 63581af3f3
1 changed files with 1 additions and 13 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

14
block/blk-mq.c
View file

@ -1210,20 +1210,8 @@ static struct request *blk_mq_map_request(struct request_queue *q,
op_flags |= REQ_SYNC;
trace_block_getrq(q, bio, op);
blk_mq_set_alloc_data(&alloc_data, q, BLK_MQ_REQ_NOWAIT, ctx, hctx);
blk_mq_set_alloc_data(&alloc_data, q, 0, ctx, hctx);
rq = __blk_mq_alloc_request(&alloc_data, op, op_flags);
if (unlikely(!rq)) {
blk_mq_run_hw_queue(hctx, false);
blk_mq_put_ctx(ctx);
trace_block_sleeprq(q, bio, op);
ctx = blk_mq_get_ctx(q);
hctx = q->mq_ops->map_queue(q, ctx->cpu);
blk_mq_set_alloc_data(&alloc_data, q, 0, ctx, hctx);
rq = __blk_mq_alloc_request(&alloc_data, op, op_flags);
ctx = alloc_data.ctx;
hctx = alloc_data.hctx;
}
hctx->queued++;
data->hctx = hctx;