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(parent: 59f0c24) | 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)
commit10a5a651e3afc9b0b381f47e8930972e4e918397
treeac78c403db8f5343539c1035aef9a0fb73f27a69tree | snapshot
parent59f0c2447e2553b0918b4a9fd38763a5c0587d02commit | 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 | blame | history
Linux 6.x block layer and io_uring tree(s)