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| author | Deepthi Dharwar <deepthi@linux.vnet.ibm.com> | 2012-05-20 18:34:27 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-07-03 14:14:40 +1000 |
| commit | 16aaaff68440dd95de98adb075303355814be6e0 (patch) | |
| tree | f7ea14e9be10224e398aa8398ddd00db10ff112b /arch/powerpc/platforms/pseries/smp.c | |
| parent | 25ebc45b93452d0bc60271f178237123c4b26808 (diff) | |
| download | op-kernel-dev-16aaaff68440dd95de98adb075303355814be6e0.zip op-kernel-dev-16aaaff68440dd95de98adb075303355814be6e0.tar.gz | |
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/platforms/pseries/smp.c')
| -rw-r--r-- | arch/powerpc/platforms/pseries/smp.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c index e16bb8d..71706bc 100644 --- a/arch/powerpc/platforms/pseries/smp.c +++ b/arch/powerpc/platforms/pseries/smp.c @@ -147,7 +147,6 @@ static void __devinit smp_xics_setup_cpu(int cpu) set_cpu_current_state(cpu, CPU_STATE_ONLINE); set_default_offline_state(cpu); #endif - pseries_notify_cpuidle_add_cpu(cpu); } static int __devinit smp_pSeries_kick_cpu(int nr) |
