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(parent: bdc2209) | patch
perf, x86: Avoid kfree() in CPU_STARTING
authorPeter Zijlstra <a.p.zijlstra@chello.nl>
Fri, 22 Jul 2011 11:41:54 +0000 (13:41 +0200)
committerIngo Molnar <mingo@elte.hu>
Sun, 14 Aug 2011 09:53:02 +0000 (11:53 +0200)
commit7fdba1ca10462f42ad2246b918fe6368f5ce488e
tree6cdb2d8c57da4dde9df3aa22bd4839151884dba6tree | snapshot (tar.gz zip)
parentbdc2209fd246820de2816691ac0e82600885e1a8commit | diff
perf, x86: Avoid kfree() in CPU_STARTING

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>
arch/x86/kernel/cpu/perf_event.c diff | blob | blame | history
arch/x86/kernel/cpu/perf_event_amd.c diff | blob | blame | history
arch/x86/kernel/cpu/perf_event_intel.c diff | blob | blame | history