cgroup/cpuset: Set isolated_cpus_updating only if isolated_cpus is changed

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As cpuset is updating HK_TYPE_DOMAIN housekeeping mask when there is
a change in the set of isolated CPUs, making this change is now more
costly than before.  Right now, the isolated_cpus_updating flag can be
set even if there is no real change in isolated_cpus. Put in additional
checks to make sure that isolated_cpus_updating is set only if there
is a real change in isolated_cpus.

Reviewed-by: Chen Ridong <chenridong@huaweicloud.com>
Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

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Waiman Long 2026-02-21 13:54:14 -05:00 • committed by Tejun Heo

parent 17b1860034

commit 14713ed9e9

1 changed files with 7 additions and 3 deletions

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kernel/cgroup/cpuset.c

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