Commit d04c406f authored Dec 14, 2018 by Christoph Hellwig Committed by Jens Axboe Dec 16, 2018

block: clear REQ_HIPRI if polling is not supported



This prevents a HIPRI bio from being submitted through a stacking
driver that does not support polling and thus won't poll for I/O
completion.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

parent d6a51a97

block/blk-core.c

+3 −0

Original line number	Original line	Diff line number	Diff line
	@@ -921,6 +921,9 @@ generic_make_request_checks(struct bio *bio)
	}		}
	}		}

			if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
			bio->bi_opf &= ~REQ_HIPRI;

	switch (bio_op(bio)) {		switch (bio_op(bio)) {
	case REQ_OP_DISCARD:		case REQ_OP_DISCARD:
	if (!blk_queue_discard(q))		if (!blk_queue_discard(q))

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