perf/x86/amd/power: Change hotplug notifier to a symmetric structure

To simplify the hotplug mechanism move the starting callback to
online. There is no functional requirement that the cpumask bit has to
be set in the starting callback.

Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Huang Rui <ray.huang@amd.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20160713153334.944849172@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/events/amd/power.c b/arch/x86/events/amd/power.c
index 55a3529dbf127ece3a6dbfcac930ccee5e6c9562..204df18e7cd2140616f8e81e42c4fb33f1055737 100644 (file)
--- a/arch/x86/events/amd/power.c
+++ b/arch/x86/events/amd/power.c
@@ -255,7 +255,7 @@ static void power_cpu_init(int cpu)
         * 1) If any CPU is set at cpu_mask in the same compute unit, do
         * nothing.
         * 2) If no CPU is set at cpu_mask in the same compute unit,
-        * set current STARTING CPU.
+        * set current ONLINE CPU.
         *
         * Note: if there is a CPU aside of the new one already in the
         * sibling mask, then it is also in cpu_mask.
@@ -272,7 +272,7 @@ power_cpu_notifier(struct notifier_block *self, unsigned long action, void *hcpu
 
        switch (action & ~CPU_TASKS_FROZEN) {
        case CPU_DOWN_FAILED:
-       case CPU_STARTING:
+       case CPU_ONLINE:
                power_cpu_init(cpu);
                break;
        case CPU_DOWN_PREPARE: