Commit-ID: b4f75d44bed1bdbb14ac704bfc38f62a3675e591 Gitweb: http://git.kernel.org/tip/b4f75d44bed1bdbb14ac704bfc38f62a3675e591 Author: Thomas Gleixner <[email protected]> AuthorDate: Tue, 9 Feb 2016 20:11:20 +0000 Committer: Ingo Molnar <[email protected]> CommitDate: Wed, 17 Feb 2016 10:37:28 +0100
perf/core: Remove bogus UP_CANCELED hotplug state If CPU_UP_PREPARE fails the perf hotplug code calls perf_event_exit_cpu(), which is a pointless exercise. The cpu is not online, so the smp function calls return -ENXIO. So the result is a list walk to call noops. Remove it. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Vince Weaver <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- kernel/events/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 5946460..474ffea 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -9286,7 +9286,6 @@ perf_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu) perf_event_init_cpu(cpu); break; - case CPU_UP_CANCELED: case CPU_DOWN_PREPARE: perf_event_exit_cpu(cpu); break;
