Re: [PATCH V4] powerpc: Implement {cmp}xchg for u8 and u16

From: Pan Xinhui
Date: Thu Apr 28 2016 - 06:24:12 EST




On 2016å04æ27æ 22:59, Boqun Feng wrote:
> On Wed, Apr 27, 2016 at 10:50:34PM +0800, Boqun Feng wrote:
>>
>> Sorry, my bad, we can't implement cmpxchg like this.. please ignore
>> this, I should really go to bed soon...
>>
>> But still, we can save the "tmp" for xchg() I think.
>>
>
> No.. we can't. Sorry for all the noise.
>
> This patch looks good to me.
>
> FWIW, you can add
>
> Acked-by: Boqun Feng <boqun.feng@xxxxxxxxx>
>
thanks!

> Regards,
> Boqun
>