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| author | Deepthi Dharwar <deepthi@linux.vnet.ibm.com> | 2012-05-20 20:34:27 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-03 06:14:40 +0200 |
| commit | 16aaaff68440dd95de98adb075303355814be6e0 (patch) | |
| tree | f7ea14e9be10224e398aa8398ddd00db10ff112b /arch/powerpc/include | |
| parent | powerpc/pseries/iommu: remove default window before attempting DDW manipulation (diff) | |
| download | linux-16aaaff68440dd95de98adb075303355814be6e0.tar.xz linux-16aaaff68440dd95de98adb075303355814be6e0.zip | |
powerpc/pseries/cpuidle: Replace pseries_notify_cpuidle_add call with notifier
The following patch is to remove the pseries_notify_add_cpu() call
and replace it by a hot plug notifier.
This would prevent cpuidle resources being released and allocated each
time cpu comes online on pseries.
The earlier design was causing a lockdep problem
in start_secondary as reported on this thread
-https://lkml.org/lkml/2012/5/17/2
This applies on 3.4-rc7
Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/processor.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h index 413a5eaef56c..53b6dfa83344 100644 --- a/arch/powerpc/include/asm/processor.h +++ b/arch/powerpc/include/asm/processor.h @@ -389,10 +389,8 @@ extern int powersave_nap; /* set if nap mode can be used in idle loop */ #ifdef CONFIG_PSERIES_IDLE extern void update_smt_snooze_delay(int snooze); -extern int pseries_notify_cpuidle_add_cpu(int cpu); #else static inline void update_smt_snooze_delay(int snooze) {} -static inline int pseries_notify_cpuidle_add_cpu(int cpu) { return 0; } #endif extern void flush_instruction_cache(void); |