cpuset: Make CPU hotplug work with partition

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When there is a cpu hotplug event (CPU online or offline), the partitions
may need to be reconfigured and regenerated. So code is added to the
hotplug functions to make them work with new subparts_cpus mask to
compute the right effective_cpus for each of the affected cpusets.
It may also change the state of a partition root from real one to an
erroneous one or vice versa.

Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

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Waiman Long 2018-11-08 10:08:41 -05:00 • committed by Tejun Heo

parent 4716909cc5

commit 4b842da276

1 changed files with 116 additions and 15 deletions

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kernel/cgroup/cpuset.c

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