Messages in this thread Patch in this message | | | Date | Tue, 1 Jul 2008 16:54:17 +0200 | From | Ingo Molnar <> | Subject | Re: [RFC 0/5] percpu: Optimize percpu accesses |
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* Mike Travis <travis@sgi.com> wrote:
> This patchset provides the following: > > * Cleanup: Fix early references to cpumask_of_cpu(0) > * Generic: Percpu infrastructure to rebase the per cpu area to zero > * x86_64: Fold pda into per cpu area > * x86_64: Rebase per cpu variables to zero
thanks Mike - i've started testing it in -tip. One small merge fallout fix is below. (it's for the new generic-ipi topic that was not in tip/master yet when you merged percpu-zerobased to it)
Ingo
----------------> commit d1d4ed23aab090298b9d4da0fe445b96afcdd309 Author: Ingo Molnar <mingo@elte.hu> Date: Tue Jul 1 16:44:45 2008 +0200
x86: percpu-zerobased fallout fixlet add_pda(x,1) => x86_inc_percpu(pda.x) Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/smp.c b/arch/x86/kernel/smp.c index 361b7a4..1ddf629 100644 --- a/arch/x86/kernel/smp.c +++ b/arch/x86/kernel/smp.c @@ -206,7 +206,7 @@ void smp_call_function_single_interrupt(struct pt_regs *regs) #ifdef CONFIG_X86_32 __get_cpu_var(irq_stat).irq_call_count++; #else - add_pda(irq_call_count, 1); + x86_inc_percpu(pda.irq_call_count); #endif irq_exit(); }
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