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Waiman Long be04e96ba9 cgroup/cpuset: Globally track isolated_cpus update

The current cpuset code passes a local isolcpus_updated flag around in a
number of functions to determine if external isolation related cpumasks
like wq_unbound_cpumask should be updated. It is a bit cumbersome and
makes the code more complex. Simplify the code by using a global boolean
flag "isolated_cpus_updating" to track this. This flag will be set in
isolated_cpus_update() and cleared in update_isolation_cpumasks().

No functional change is expected.

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

2025-11-05 07:00:33 -10:00

cgroup-internal.h

cgroup: replace global percpu_rwsem with per threadgroup resem when writing to cgroup.procs

2025-09-10 07:44:51 -10:00

cgroup-v1.c

cgroup: replace global percpu_rwsem with per threadgroup resem when writing to cgroup.procs

2025-09-10 07:44:51 -10:00

cgroup.c

cgroup: Defer task cgroup unlink until after the task is done switching out

2025-11-03 11:46:18 -10:00

cpuset-internal.h

cgroup/cpuset: Don't track # of local child partitions