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Commit c76541a9 authored by Keith Busch's avatar Keith Busch Committed by Jens Axboe
Browse files

blk-mq: Exit queue on alloc failure 



Fixes usage counter when a request could not be allocated.

Signed-off-by: default avatarKeith Busch <keith.busch@intel.com>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent ecb5ec04

block/blk-mq.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -258,8 +258,10 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, 
		ctx = alloc_data.ctx;

		ctx = alloc_data.ctx;

	}

	}

	blk_mq_put_ctx(ctx);

	blk_mq_put_ctx(ctx);

	if (!rq)

	if (!rq) {

		blk_mq_queue_exit(q);

		return ERR_PTR(-EWOULDBLOCK);

		return ERR_PTR(-EWOULDBLOCK);

	}

	return rq;

	return rq;

}

}

EXPORT_SYMBOL(blk_mq_alloc_request);

EXPORT_SYMBOL(blk_mq_alloc_request);