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SubjectRe: [patch] [sched] bitmap cleanup, speedup, 2.5.3-pre5
Followup to:  <Pine.LNX.4.33.0201281744070.9796-100000@localhost.localdomain>
By author: Ingo Molnar <>
In newsgroup:
> +static __inline__ unsigned long __ffs(unsigned long word)
> +{
> + __asm__("bsfl %1,%0"
> + :"=r" (word)
> + :"r" (word));
> return word;
> }

Should typically be:

static __inline__ unsigned long __ffs(unsigned long word)
__asm__("bsfl %1,%0"
:"=r" (word)
:"rm" (word));
return word;

There is no reason to force the compiler to put the operand in a

<> at work, <> in private!
"Unix gives you enough rope to shoot yourself in the foot." <>
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