Re: [PATCH V2 0/6][RFC] futex: FUTEX_LOCK with optional adaptivespinning

[Avi Kivity]

On 04/06/2010 04:35 PM, Peter Zijlstra wrote:
> On Tue, 2010-04-06 at 16:28 +0300, Avi Kivity wrote:
>    
> > Yes, but that's the best case for spinning.  You could simply use a
> > userspace spinlock in this case.
> >      
> Userspace spinlocks are evil.. they should _never_ be used.
>    

But in this case they're fastest.  If we don't provide a non-evil 
alternative, people will use them.

--
error compiling committee.c: too many arguments to function

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