Commit 8a8e6f84 authored Aug 18, 2017 by Shaohua Li

md/raid0: attach correct cgroup info in bio



The discard bio doesn't attach the original bio cgroup info. Normal bio
is cloned, so is fine.

Signed-off-by: Shaohua Li <shli@fb.com>

parent b5e0fff1

block/bio.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -2085,7 +2085,7 @@ void bio_clone_blkcg_association(struct bio dst, struct bio src)
		if (src->bi_css)
		WARN_ON(bio_associate_blkcg(dst, src->bi_css));
		}

		EXPORT_SYMBOL_GPL(bio_clone_blkcg_association);
		#endif /* CONFIG_BLK_CGROUP */

		static void __init biovec_init_slabs(void)

drivers/md/raid0.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -539,6 +539,7 @@ static void raid0_handle_discard(struct mddev mddev, struct bio bio)
		!discard_bio)
		continue;
		bio_chain(discard_bio, bio);
		bio_clone_blkcg_association(discard_bio, bio);
		if (mddev->gendisk)
		trace_block_bio_remap(bdev_get_queue(rdev->bdev),
		discard_bio, disk_devt(mddev->gendisk),