Re: [PATCH v4 0/5] cgroup/cpuset: Fix CLONE_INTO_CGROUP problem & other issues

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On Tue, Apr 11, 2023 at 09:35:56AM -0400, Waiman Long wrote:
>  v4:
>   - Add missing rcu_read_lock/unlock to cpuset_cancel_fork() in patch 3.
>   - Add patch 5 to reduce performance impact for the
>     non-CLONE_INTO_CGROUP case.
> 
>  v3:
>   - Update patches 2 & 3 to put task_cs() call under rcu_read_lock().
> 
>  v2:
>   - Drop v1 patch 3
>   - Add a new patch to fix an issue in cpuset_cancel_attach() and
>     another patch to add cpuset_can_fork() and cpuset_cacnel_fork()
>     methods.
> 
> The first patch in this series fixes a problem in
> cpuset_cancel_attach(). Patches 2 and 3 fixes the CLONE_INTO_CGROUP
> problem in cpuset. Patch 4 is a minor fix. The last patch is a
> performance optimization patch for the non-CLONE_INTO_CGROUP case.

Applied 1-4 to cgroup/for-6.3-fixes w/ stable cc'd. Given that the fixes are
a bit involved, the breakages have been there for quite a while and the
cpuset code has changed quite a bit, backporting might not be trivial tho.
Let's see how that goes.

Thanks.

-- 
tejun



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