From 0e6e255e7a58cdf4ee4163f83deeb5ce4946051e Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 7 Jul 2020 19:45:03 +0200 Subject: block: remove a bogus warning in __submit_bio_noacct_mq If blk_mq_submit_bio flushes the plug list, bios for other disks can show up on current->bio_list. As that doesn't involve any stacking of block device it is entirely harmless and we should not warn about this case. Fixes: ff93ea0ce763 ("block: shortcut __submit_bio_noacct for blk-mq drivers") Reported-by: kernel test robot Signed-off-by: Christoph Hellwig Signed-off-by: Jens Axboe --- block/blk-core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'block') diff --git a/block/blk-core.c b/block/blk-core.c index 9f1bf8658b61..93104c7470e8 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1154,14 +1154,13 @@ static blk_qc_t __submit_bio_noacct(struct bio *bio) static blk_qc_t __submit_bio_noacct_mq(struct bio *bio) { - struct gendisk *disk = bio->bi_disk; struct bio_list bio_list[2] = { }; blk_qc_t ret = BLK_QC_T_NONE; current->bio_list = bio_list; do { - WARN_ON_ONCE(bio->bi_disk != disk); + struct gendisk *disk = bio->bi_disk; if (unlikely(bio_queue_enter(bio) != 0)) continue; -- cgit v1.2.3