diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-07 19:45:03 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-07 11:45:59 -0600 |
| commit | 0e6e255e7a58cdf4ee4163f83deeb5ce4946051e (patch) | |
| tree | 53c192505570b701bdd5ecdf539ef68850f865ad /block | |
| parent | 7c792f33c1b3e231cfd50fea589194c593a6ce3c (diff) | |
| download | lwn-0e6e255e7a58cdf4ee4163f83deeb5ce4946051e.tar.gz lwn-0e6e255e7a58cdf4ee4163f83deeb5ce4946051e.zip | |
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 <lkp@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block')
| -rw-r--r-- | block/blk-core.c | 3 |
1 files changed, 1 insertions, 2 deletions
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; |