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Date: Thu, 28 Apr 2016 18:21:27 +0800
From: Pan Xinhui <xinhui@linux.vnet.ibm.com>
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To: Boqun Feng <boqun.feng@gmail.com>
CC: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
 benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
 peterz@infradead.org, paulmck@linux.vnet.ibm.com, tglx@linutronix.de
Subject: Re: [PATCH V4] powerpc: Implement {cmp}xchg for u8 and u16
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On 2016年04月27日 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@gmail.com>
> 
thanks!

> Regards,
> Boqun
>