Christoph Lameter wrote:

> Could decomplicate this? Just use acquire / release and avoid the 
> additional intrinsics. The purpose is first of all correctness. Then we 
> can add some whiz bang on top. Also please sent patches inline not as 
> attachments.

I could have misunderstood what you wrote yesterday:

>>Could you consider using some cache hints, like "ld8.bias.nta"?
>>"bias" is a hint to acquire exclusive ownership.
>>"nta" is a hint to allocate the cache line only in L2
>>(and side effect: to bias it to be replaced).
>>All of the Itanium 2 processor's atomic instructions are handled
>>exclusively by the L2 cache.
> 
> Could you come up with a patch? Currently, I do not seem to be able to 
> spend enough time on it.

I thought you had asked for both the correct fencing and the cache hints.

Thanks,

Zoltan