The patch titled
Reintroduce run time configurable max_cstate for !CPU_IDLE case
has been removed from the -mm tree. Its filename was
reintroduce-run-time-configurable-max_cstate-for-cpu_idle-case.patch
This patch was dropped because an updated version will be merged
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: Reintroduce run time configurable max_cstate for !CPU_IDLE case
From: Venki Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
This was writeable in 2.6.23 but the cpuidle merge made it read-only. But
some people's scripts (ie: Mark's) were writing to it.
As an unhappy compromise, make max_cstate writeable again if the kernel was
configured without CONFIG_CPU_IDLE.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@xxxxxxxxx>
Cc: Mark Lord <lkml@xxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/acpi/processor_idle.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN drivers/acpi/processor_idle.c~reintroduce-run-time-configurable-max_cstate-for-cpu_idle-case drivers/acpi/processor_idle.c
--- a/drivers/acpi/processor_idle.c~reintroduce-run-time-configurable-max_cstate-for-cpu_idle-case
+++ a/drivers/acpi/processor_idle.c
@@ -76,7 +76,11 @@ static void (*pm_idle_save) (void) __rea
#define PM_TIMER_TICKS_TO_US(p) (((p) * 1000)/(PM_TIMER_FREQUENCY/1000))
static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
+#ifdef CONFIG_CPU_IDLE
module_param(max_cstate, uint, 0000);
+#else
+module_param(max_cstate, uint, 0644);
+#endif
static unsigned int nocst __read_mostly;
module_param(nocst, uint, 0000);
_
Patches currently in -mm which might be from venkatesh.pallipadi@xxxxxxxxx are
reintroduce-run-time-configurable-max_cstate-for-cpu_idle-case.patch
git-cpufreq.patch
git-x86.patch
cpufreq-initialise-default-governor-before-use.patch
pm-qos-infrastructure-and-interface.patch
pm-qos-infrastructure-and-interface-static-initialization-with-blocking-notifiers.patch
pm-qos-remove-locks-around-blocking-notifier.patch
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