Re: [PATCH 8/8] Convert PDA into the percpu section

From: Jeremy Fitzhardinge
Date: Tue Mar 06 2007 - 13:38:26 EST


Andi Kleen wrote:
> Sigh -- i had hoped this had settled down because it was a
> merging nightmare last time. Ok.
>
>
>> +#define percpu_to_op(op,var,val) \
>> + do { \
>> + typedef typeof(var) T__; \
>> + if (0) { T__ tmp__; tmp__ = (val); } \
>> + switch (sizeof(var)) { \
>> + case 1: \
>> + asm(op "b %1,"__percpu_seg"%0" \
>> + : "+m" (var) \
>> + :"ri" ((T__)val)); \
>>
>
> Perhaps I'm blind but I can't see where the %fs reference is there.
>
__percpu_seg. It's defined to nothing in the UP case.

J
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