cgroup/cpuset: Further optimize code if CONFIG_CPUSETS_V1 not set

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[ Upstream commit c4c9cebe2f ]

Currently the cpuset code uses group_subsys_on_dfl() to check if we
are running with cgroup v2. If CONFIG_CPUSETS_V1 isn't set, there is
really no need to do this check and we can optimize out some of the
unneeded v1 specific code paths. Introduce a new cpuset_v2() and use it
to replace the cgroup_subsys_on_dfl() check to further optimize the
code.

Signed-off-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Stable-dep-of: a22b3d54de ("cgroup/cpuset: Fix race between newly created partition and dying one")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Waiman Long 2024-11-09 21:50:23 -05:00 • committed by Greg Kroah-Hartman

parent 6b145f8b22

commit 1b06f00eda

1 changed files with 19 additions and 20 deletions

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kernel/cgroup/cpuset.c

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