bios must have a valid block group by the time they are submitted. Signed-off-by: Christoph Hellwig <hch@xxxxxx> --- block/blk-throttle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-throttle.c b/block/blk-throttle.c index 9d00f62c05ecdf..ad37043297ed58 100644 --- a/block/blk-throttle.c +++ b/block/blk-throttle.c @@ -2163,7 +2163,7 @@ bool blk_throtl_bio(struct bio *bio) struct request_queue *q = bio->bi_disk->queue; struct blkcg_gq *blkg = bio->bi_blkg; struct throtl_qnode *qn = NULL; - struct throtl_grp *tg = blkg_to_tg(blkg ?: q->root_blkg); + struct throtl_grp *tg = blkg_to_tg(blkg); struct throtl_service_queue *sq; bool rw = bio_data_dir(bio); bool throttled = false; -- 2.26.2
