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md/raid0: attach correct cgroup info in bio

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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>
This commit is contained in:
Shaohua Li 2017-08-18 10:27:59 -07:00
parent b5e0fff19b
commit 8a8e6f84ad
2 changed files with 2 additions and 1 deletions
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2
block/bio.c
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@ -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)

1
drivers/md/raid0.c
View File

@ -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),