Re: [PATCH-next v3 0/3] cgroup/cpuset: Support multiple destination cpusets for cpuset_*attach()

[Tejun Heo]

Hello,

On Sun, Jul 12, 2026 at 07:55:07PM -0400, Waiman Long wrote:
> Michal Koutný (1):
>   selftests/cgroup: Add test for cpuset affinity on controller disable
>
> Waiman Long (2):
>   cgroup/cpuset: Support multiple destination cpusets for
>     cpuset_*attach()
>   cgroup/cpuset: Handle the special case of non-moving tasks in
>     cpuset_can_attach()

Applied 1-3 to cgroup/for-7.3.

While applying, fixed a comment typo in patch 1:

-			else if (cs->dl_bw_cpu >= 0) /* && cacnel */
+			else if (cs->dl_bw_cpu >= 0) /* && cancel */

The following selftest issues remain. Let's address them with follow-up
patches:

- cpu_set_equal() iterates sizeof(mask) bytes rather than bits, so only
  CPUs 0-7 are compared, and the assert compares a byte count against
  CPU_SETSIZE bits so it always holds.

- thread_b doesn't wait for thread_a before advancing test_phase to
  AFFINITY_THREADS_READY, so the main thread can read affinity_a_before
  before thread_a has written it.

- On a machine which doesn't have both CPUs 0 and 1 online, the test
  fails instead of skipping.

Thanks.

-- 
tejun