linux-kernel - Re: [PATCH 05/20] arch,arm64: Fold atomic

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Date:	Thu, 8 May 2014 19:31:42 +0100
From:	Will Deacon <will.deacon@....com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"mingo@...nel.org" <mingo@...nel.org>,
	"paulmck@...ux.vnet.ibm.com" <paulmck@...ux.vnet.ibm.com>,
	Catalin Marinas <Catalin.Marinas@....com>,
	Chen Gang <gang.chen@...anux.com>,
	Russell King <rmk+kernel@....linux.org.uk>
Subject: Re: [PATCH 05/20] arch,arm64: Fold atomic_ops

On Thu, May 08, 2014 at 02:58:45PM +0100, Peter Zijlstra wrote:
> Many of the atomic op implementations are the same except for one
> instruction; fold the lot into a few CPP macros and reduce LoC.
> 
> This also prepares for easy addition of new ops.
> 
> Requires the asm_op due to eor.
> 
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Chen Gang <gang.chen@...anux.com>
> Cc: Linus Torvalds <torvalds@...ux-foundation.org>
> Cc: Russell King <rmk+kernel@....linux.org.uk>
> Cc: Will Deacon <will.deacon@....com>
> Signed-off-by: Peter Zijlstra <peterz@...radead.org>
> ---
>  arch/arm64/include/asm/atomic.h |  213 ++++++++++++++++------------------------
>  1 file changed, 88 insertions(+), 125 deletions(-)

Acked-by: Will Deacon <will.deacon@....com>

Will
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