Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1440585

[patch 24/66] perf/x86/amd/power: Change hotplug notifier to a symmetric structure

From Anna-Maria Gleixner <anna-maria@linutronix.de>
Newsgroups linux.kernel
Subject [patch 24/66] perf/x86/amd/power: Change hotplug notifier to a symmetric structure
Date 2016-07-11 14:50 +0200
Message-ID <rTIOS-762-29@gated-at.bofh.it> (permalink)
References <rTIFb-70u-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


From: Anna-Maria Gleixner <anna-maria@linutronix.de>

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>
---
 arch/x86/events/amd/power.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- 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
 
 	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_DOWN_FAILED:
-	case CPU_STARTING:
+	case CPU_ONLINE:
 		power_cpu_init(cpu);
 		break;
 	case CPU_DOWN_PREPARE:

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[patch 24/66] perf/x86/amd/power: Change hotplug notifier to a  symmetric structure Anna-Maria Gleixner <anna-maria@linutronix.de> - 2016-07-11 14:50 +0200

csiph-web