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(parent: 128ee48) | patch
workqueue: Restrict kworker in the offline CPU pool running on housekeeping CPUs
authorZqiang <qiang1.zhang@intel.com>
Thu, 31 Mar 2022 05:57:17 +0000 (13:57 +0800)
committerTejun Heo <tj@kernel.org>
Thu, 21 Apr 2022 22:31:04 +0000 (12:31 -1000)
commit264fd0e7caf0067347c811515632e8bccaef7b65
treeac78c403db8f5343539c1035aef9a0fb73f27a69tree | snapshot
parent128ee48ab7ab125503c075b8c90a4307eed4adb0commit | diff
workqueue: Restrict kworker in the offline CPU pool running on housekeeping CPUs

When a CPU is going offline, all workers on the CPU's pool will have their
cpus_allowed cleared to cpu_possible_mask and can run on any CPUs including
the isolated ones. Instead, set cpus_allowed to wq_unbound_cpumask so that
the can avoid isolated CPUs.

Signed-off-by: Zqiang <qiang1.zhang@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
kernel/workqueue.c diff | blob | history
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