Messages in this thread | | | Date | Fri, 22 May 2009 20:36:22 +0200 | From | Ingo Molnar <> | Subject | Re: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic |
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* Michael S. Zick <lkml@morethan.org> wrote:
> Found in the bit-rot for 32-bit, x86, Uni-processor builds: > > diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h > index f6aa18e..3c790ef 100644 > --- a/arch/x86/include/asm/alternative.h > +++ b/arch/x86/include/asm/alternative.h > @@ -35,7 +35,7 @@ > "661:\n\tlock; " > > #else /* ! CONFIG_SMP */ > -#define LOCK_PREFIX "" > +#define LOCK_PREFIX "\n\tlock; " > #endif
What is your motivation for this change? At first sight this makes the UP kernel a bit larger and a bit smaller. Are you fixing some real regression/bug here?
Ingo
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