block: do not put mq context in blk_mq_alloc_request_hctx
In blk_mq_alloc_request_hctx, blk_mq_sched_get_request doesn't get sw context so we don't need to put the context with blk_mq_put_ctx. Unless, we will see preempt counter underflow. Cc: Omar Sandoval <osandov@fb.com> Signed-off-by: Minchan Kim <minchan@kernel.org> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jens Axboe <axboe@fb.com>
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@ -324,7 +324,6 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q, int rw,
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rq = blk_mq_sched_get_request(q, NULL, rw, &alloc_data);
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blk_mq_put_ctx(alloc_data.ctx);
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blk_queue_exit(q);
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if (!rq)
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