On Sat, 5 Sep 2015 14:04:57 +0200
Ingo Molnar <[email protected]> wrote:

 
> So why not do:
> 
>       lock(B);
>       if (!trylock(A)) {
>               unlock(B);
>               lock(A);
>               lock(B);
>       }
> 
> ?
> 
> Or, if this can be done, why didn't we do:
> 
>       lock(A);
>       lock(B);
> 
> to begin with?
> 
> i.e. I'm not sure the problem is properly specified.

Yeah, this is actually the solution I came up with before. I misread
what Thomas wrote. His is slightly different.

-- Steve
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