This reverts commit f10d9f617a65905c556c3b37c9b9646ae7d04ed7. We can't have queues without a make_request_fn any more (and the loop device uses blk-mq these days anyway..). Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- block/blk-flush.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/block/blk-flush.c b/block/blk-flush.c index 843d25683691..c7f396e3d5e2 100644 --- a/block/blk-flush.c +++ b/block/blk-flush.c @@ -454,15 +454,6 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask, if (!q) return -ENXIO; - /* - * some block devices may not have their queue correctly set up here - * (e.g. loop device without a backing file) and so issuing a flush - * here will panic. Ensure there is a request function before issuing - * the flush. - */ - if (!q->make_request_fn) - return -ENXIO; - bio = bio_alloc(gfp_mask, 0); bio_set_dev(bio, bdev); bio->bi_opf = REQ_OP_WRITE | REQ_PREFLUSH; -- 2.25.1
