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cgroup/cpuset: Relax restrictions on usage of cpuset.cpus.exclusive

Waiman Long requested to merge llong1/centos-stream-9:rhel-43331_cpuset into main

JIRA: https://issues.redhat.com/browse/RHEL-43331
MR: !4525 (merged)

The OCP team has reported that the current restrictions imposed on the new cpuset.cpus.exclusive control file to create remote isolated partitions make it hard to use. Fix it by backporting my recent cpuset patches that have been merged into the cgroup maintainer's tree to relax the restrictions as well as fixing an issue in sched domain generation and making hotplug processing synchronous.

Signed-off-by: Waiman Long longman@redhat.com

Edited by Waiman Long

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