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Date: Tue, 12 Jan 2021 15:43:44 +0100 From: Peter Zijlstra <peterz@...radead.org> To: mingo@...nel.org, tglx@...utronix.de Cc: linux-kernel@...r.kernel.org, jiangshanlai@...il.com, valentin.schneider@....com, cai@...hat.com, vincent.donnefort@....com, decui@...rosoft.com, paulmck@...nel.org, vincent.guittot@...aro.org, rostedt@...dmis.org, tj@...nel.org, peterz@...radead.org Subject: [PATCH 0/4] sched: Fix hot-unplug regressions Hi, These 4 patches are the simplest means (barring a revert) of fixing the CPU hot-unplug problems introduced by commit: 1cf12e08bc4d ("sched/hotplug: Consolidate task migration on CPU unplug") Testing here, any by Paul, indicate they survive a pounding. They restore the previous behaviour of forced affinity breaking for the class of kernel threads that happen to have single CPU affinity, but are not strictly a per-cpu kthread.
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