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| author | Waiman Long <longman@redhat.com> | 2023-03-17 18:15:05 +0300 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2023-03-29 21:37:07 +0300 |
| commit | 292fd843de26c551856e66faf134512c52dd78b4 (patch) | |
| tree | c64dd23e8acc0f98aef4bf91310c321ec18390ee /tools/perf/scripts/python/syscall-counts.py | |
| parent | fcdb1eda5302599045bb366e679cccb4216f3873 (diff) | |
| download | linux-292fd843de26c551856e66faf134512c52dd78b4.tar.xz | |
cgroup/cpuset: Fix partition root's cpuset.cpus update bug
It was found that commit 7a2127e66a00 ("cpuset: Call
set_cpus_allowed_ptr() with appropriate mask for task") introduced a bug
that corrupted "cpuset.cpus" of a partition root when it was updated.
It is because the tmp->new_cpus field of the passed tmp parameter
of update_parent_subparts_cpumask() should not be used at all as
it contains important cpumask data that should not be overwritten.
Fix it by using tmp->addmask instead.
Also update update_cpumask() to make sure that trialcs->cpu_allowed
will not be corrupted until it is no longer needed.
Fixes: 7a2127e66a00 ("cpuset: Call set_cpus_allowed_ptr() with appropriate mask for task")
Signed-off-by: Waiman Long <longman@redhat.com>
Cc: stable@vger.kernel.org # v6.2+
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions