On 4/12/23 14:26, Tejun Heo wrote:
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.
I know stable backport won't be straight forward. I am planning to help in the backporting effort. Thanks for taking these into your cgroup tree.
Cheers, Longman
