Re: [PATCH 10/11] x86, rwsem: provide __down_write_killable

[Michal Hocko]

On Wed 13-04-16 12:27:31, Ingo Molnar wrote:
> 
> * Ingo Molnar <mingo@xxxxxxxxxx> wrote:
> 
> > I'm testing your patches today, if they are otherwise OK [...]
> 
> got this build failure:
> 
>   ./arch/x86/include/asm/rwsem.h:106:2: error: âasmâ operand has impossible constraints

Hmm, I have no idea why 64b didn't have problem with the asm but 32b
complains. Anyway, the following makes both happy. I have checked the
generated code for 64b and it hasn't changed after the patch. 32b also
seems to be generating a proper code. My gcc asm()-foo is rather weak so
I would feel better if somebody double checked after me.
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