Commits
Christoph Hellwig committed 45cde2f8160
block: add a poll_fn callback to struct request_queue That we we can also poll non blk-mq queues. Mostly needed for the NVMe multipath code, but could also be useful elsewhere. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> (cherry picked from commit ea435e1b9392a33deceaea2a16ebaa3397bead93)