Hi, Jens
在 2023/01/20 2:54, Jens Axboe 写道:
On 1/19/23 4:03 AM, Yu Kuai wrote:
From: Yu Kuai <yukuai3@xxxxxxxxxx>
Changes in v3:
- add ack tag from Tejun for patch 1,2
- as suggested by Tejun, update commit message and comments in patch 3
The problem was found in iocost orignally([1]) that ioc can be freed in
ioc_pd_free(). And later we found that there are more problem in
iocost([2]).
After some discussion, as suggested by Tejun([3]), we decide to fix the
problem that parent pd can be freed before child pd in cgroup layer
first. And the problem in [1] will be fixed later if this patchset is
applied.
Doesn't apply against for-6.3/block (or linux-next or my for-next, for
that matter). Can you resend a tested one against for-6.3/block?
This is weird, I just test latest linux-next, and I can apply this
patchset on the top of following commit:
For latest for-6.3/block, this patch 2 can't be applied because
following commit is not here:
e3ff8887e7db blk-cgroup: fix missing pd_online_fn() while activating policy
But this patch is already merged into 6.2-rc5.
Thanks,
Kuai
