perf, x86: Avoid kfree() in CPU_STARTING

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On -rt kfree() can schedule, but CPU_STARTING is before the CPU is
fully up and running. These are contradictory, so avoid it. Instead
push the kfree() to CPU_ONLINE where we're free to schedule.

Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-kwd4j6ayld5thrscvaxgjquv@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Peter Zijlstra 2011-07-22 13:41:54 +02:00 • committed by Ingo Molnar

parent bdc2209fd2

commit 7fdba1ca10

3 changed files with 10 additions and 2 deletions

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8

arch/x86/kernel/cpu/perf_event.c

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2

arch/x86/kernel/cpu/perf_event_amd.c

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2

arch/x86/kernel/cpu/perf_event_intel.c

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