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| author | Yu Kuai <yukuai3@huawei.com> | 2023-01-03 19:28:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-06 08:06:32 +0100 |
| commit | a4a1af9fa08ef5425c2aee4e4f6534ae18df7153 (patch) | |
| tree | c67c1ad44e7adef4e9047b3f19eea873a50f80eb | |
| parent | 6db03adf078e403b285362498108486bef669fed (diff) | |
| download | linux-stable-a4a1af9fa08ef5425c2aee4e4f6534ae18df7153.tar.gz linux-stable-a4a1af9fa08ef5425c2aee4e4f6534ae18df7153.tar.bz2 linux-stable-a4a1af9fa08ef5425c2aee4e4f6534ae18df7153.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 fcf9cf49f5de..7c91d9195da8 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -1408,6 +1408,10 @@ 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; |