[PATCH] md/raid0: attach correct cgroup info in bio
From: Shaohua Li <hidden>
Date: 2017-08-18 17:27:59
Subsystem:
software raid (multiple disks) support, the rest · Maintainers:
Song Liu, Yu Kuai, Linus Torvalds
The discard bio doesn't attach the original bio cgroup info. Normal bio is cloned, so is fine. Signed-off-by: Shaohua Li <redacted> --- 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),
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2.9.5