block: use bio_queue_enter instead of blk_queue_enter in bio_poll

We want to have a valid live gendisk to call ->poll and not just a
request_queue, so call the right helper.

Fixes: 3e08773c ("block: switch polling to be bio based")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220523124302.526186-1-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

block/blk-core.c

@@ -943,7 +943,7 @@ int bio_poll(struct bio *bio, struct io_comp_batch *iob, unsigned int flags)
 
 	blk_flush_plug(current->plug, false);
 
-	if (blk_queue_enter(q, BLK_MQ_REQ_NOWAIT))
+	if (bio_queue_enter(bio))
 		return 0;
 	if (queue_is_mq(q)) {
 		ret = blk_mq_poll(q, cookie, iob, flags);