- Subject: [PATCH 1/2] acpi-cpufreq: Fix CPU_ANY CPUFREQ_{PRE,POST}CHANGE notification
- From: Thomas Renninger <trenn@xxxxxxx>
- Date: Tue, 27 Apr 2010 16:57:41 +0200
- Cc: linux-trace-users@xxxxxxxxxxxxxxx, linux-perf-users@xxxxxxxxxxxxxxx, robert.schoene@xxxxxxxxxxxxx, cpufreq@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, davej@xxxxxxxxxx, arjan@xxxxxxxxxxxxx, Thomas Renninger <trenn@xxxxxxx>, venki@xxxxxxxxxx
- In-reply-to: <1272380262-23671-1-git-send-email-trenn@xxxxxxx>
- References: <1272380262-23671-1-git-send-email-trenn@xxxxxxx>
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@xxxxxxx>
CC: venki@xxxxxxxxxx
CC: davej@xxxxxxxxxx
CC: linux-kernel@xxxxxxxxxxxxxxx
CC: cpufreq@xxxxxxxxxxxxxxx
CC: linux-perf-users@xxxxxxxxxxxxxxx
CC: linux-trace-users@xxxxxxxxxxxxxxx
CC: x86@xxxxxxxxxx
CC: robert.schoene@xxxxxxxxxxxxx
---
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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