On Sat, Sep 29, 2007 at 08:16:47PM -0700, Paul E. McKenney wrote:
> On Sat, Sep 29, 2007 at 03:28:48PM +0200, Nick Piggin wrote:
>
> Acked-by: Paul E. McKenney <[EMAIL PROTECTED]>
>
Thanks v much for confirming, everyone.
> > Signed-off-by: Nick Piggin <[EMAIL PROTECTED]>
> >
> > ---
> > Index: linux-2.6/include/asm-i386/system.h
> > ===================================================================
> > --- linux-2.6.orig/include/asm-i386/system.h
> > +++ linux-2.6/include/asm-i386/system.h
> > @@ -214,11 +214,6 @@ static inline unsigned long get_limit(un
> > */
> >
> >
> > -/*
> > - * Actually only lfence would be needed for mb() because all stores done
> > - * by the kernel should be already ordered. But keep a full barrier for
> > now.
> > - */
> > -
> > #define mb() alternative("lock; addl $0,0(%%esp)", "mfence",
> > X86_FEATURE_XMM2)
> > #define rmb() alternative("lock; addl $0,0(%%esp)", "lfence",
> > X86_FEATURE_XMM2)
> >
-
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