linux-kernel - Re: [PATCH -v2 19/33] locking,powerpc: Implement atomic{,64}_fetch_{add,sub,and,or,xor}{,_relaxed,_acquire,

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Date:	Wed, 1 Jun 2016 10:46:23 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Boqun Feng <boqun.feng@...il.com>
Cc:	torvalds@...ux-foundation.org, mingo@...nel.org,
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Subject: Re: [PATCH -v2 19/33] locking,powerpc: Implement
 atomic{,64}_fetch_{add,sub,and,or,xor}{,_relaxed,_acquire,_release}()

On Wed, Jun 01, 2016 at 02:10:45PM +0800, Boqun Feng wrote:
> On Wed, Jun 01, 2016 at 11:11:38AM +0800, Boqun Feng wrote:

> > Looks like I missed this one in v1, it should be
> > 	
> > 	return res;

Indeed.

> > because the primitives will return the values before modified by the
> > operations.
> > 
> 
> FWIW, I tested on ppc with ATOMIC64_SELFTEST=y for the following branch:

Thanks, I'll add a tested-by tag with your name on ;-)