diff options
| author | Yu Kuai <yukuai3@huawei.com> | 2023-01-03 19:28:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-06 07:59:00 +0100 |
| commit | 6d7686cc11b76019db57f9b2dc555f4023d097a1 (patch) | |
| tree | 9935cb6d918783ab7a540d6483d2426f502ed5f2 | |
| parent | 2144859229c1e74f52d3ea067338d314a83a8afb (diff) | |
| download | linux-6d7686cc11b76019db57f9b2dc555f4023d097a1.tar.gz linux-6d7686cc11b76019db57f9b2dc555f4023d097a1.tar.bz2 linux-6d7686cc11b76019db57f9b2dc555f4023d097a1.zip | |
blk-cgroup: fix missing pd_online_fn() while activating policy
[ Upstream commit e3ff8887e7db757360f97634e0d6f4b8e27a8c46 ]
If the policy defines pd_online_fn(), it should be called after
pd_init_fn(), like blkg_create().
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Acked-by: Tejun Heo <tj@kernel.org>
Link: https://lore.kernel.org/r/20230103112833.2013432-1-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | block/blk-cgroup.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index ce5858dadca5..3ee4c1217b63 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1360,6 +1360,10 @@ retry: list_for_each_entry_reverse(blkg, &q->blkg_list, q_node) pol->pd_init_fn(blkg->pd[pol->plid]); + if (pol->pd_online_fn) + list_for_each_entry_reverse(blkg, &q->blkg_list, q_node) + pol->pd_online_fn(blkg->pd[pol->plid]); + __set_bit(pol->plid, q->blkcg_pols); ret = 0; |