Messages in this thread | | | Date | Wed, 29 Mar 2023 12:05:20 -0400 | Subject | Re: [PATCH 6/7] cgroup/cpuset: Protect DL BW data against parallel cpuset_attach() | From | Waiman Long <> |
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On 3/29/23 12:02, Waiman Long wrote: > It is possible to have parallel attach operations to the same cpuset in > progress. To avoid possible corruption of single set of DL BW data in > the cpuset structure, we have to disallow parallel attach operations if > DL tasks are present. Attach operations can still proceed in parallel > as long as no DL tasks are involved. > > This patch also stores the CPU where DL BW is allocated and free that BW > back to the same CPU in case cpuset_can_attach() is called. > > Signed-off-by: Waiman Long <longman@redhat.com>
Juri, this patch is an addendum to your series to address the issues that I found from the cpuset point of view.
Cheers, Longman
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