linux-kernel - [PATCH 1/2] acpi-cpufreq: Fix CPU_ANY CPUFREQ

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Date:	Tue, 27 Apr 2010 16:57:41 +0200
From:	Thomas Renninger <trenn@...e.de>
To:	x86@...nel.org
Cc:	linux-trace-users@...r.kernel.org,
	linux-perf-users@...r.kernel.org, robert.schoene@...dresden.de,
	cpufreq@...r.kernel.org, linux-kernel@...r.kernel.org,
	davej@...hat.com, arjan@...radead.org,
	Thomas Renninger <trenn@...e.de>, venki@...gle.com
Subject: [PATCH 1/2] acpi-cpufreq: Fix CPU_ANY CPUFREQ_{PRE,POST}CHANGE notification

This has been found be review.
Currently PRE/POSTCHANGE events seem to only be thrown for one core
if the BIOS tells us to run in CPU_ANY mode (switching one/any
of the depending cores is enough).

Signed-off-by: Thomas Renninger <trenn@...e.de>
CC: venki@...gle.com
CC: davej@...hat.com
CC: linux-kernel@...r.kernel.org
CC: cpufreq@...r.kernel.org
CC: linux-perf-users@...r.kernel.org
CC: linux-trace-users@...r.kernel.org
CC: x86@...nel.org
CC: robert.schoene@...dresden.de
---
 arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
index 4591680..c6de3a9 100644
--- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -391,7 +391,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 
 	freqs.old = perf->states[perf->state].core_frequency * 1000;
 	freqs.new = data->freq_table[next_state].frequency;
-	for_each_cpu(i, cmd.mask) {
+	for_each_cpu(i, policy->cpus) {
 		freqs.cpu = i;
 		cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
 	}
@@ -407,7 +407,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 		}
 	}
 
-	for_each_cpu(i, cmd.mask) {
+	for_each_cpu(i, policy->cpus) {
 		freqs.cpu = i;
 		cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
 	}
-- 
1.6.3

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