The discard bio doesn't attach the original bio cgroup info. Normal bio is cloned, so is fine. Signed-off-by: Shaohua Li <shli@xxxxxx> --- drivers/md/raid0.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 94d9ae9..071a7c5 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -539,6 +539,8 @@ static void raid0_handle_discard(struct mddev *mddev, struct bio *bio) !discard_bio) continue; bio_chain(discard_bio, bio); + if (bio->bi_css) + bio_associate_blkcg(discard_bio, bio->bi_css); if (mddev->gendisk) trace_block_bio_remap(bdev_get_queue(rdev->bdev), discard_bio, disk_devt(mddev->gendisk), -- 2.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
