diff options
| author | Thomas Gleixner <[email protected]> | 2016-02-09 20:11:20 +0000 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2016-02-17 10:37:28 +0100 |
| commit | b4f75d44bed1bdbb14ac704bfc38f62a3675e591 (patch) | |
| tree | 5581e7f971a01c65b66bd2eaf09a09ac75931728 | |
| parent | 8bc9162cd2bf37036c486b384ac445b59b334b04 (diff) | |
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]>
| -rw-r--r-- | kernel/events/core.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/events/core.c b/kernel/events/core.c index 5946460b2425..474ffeafe363 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; |