linux-kernel - Re: [PATCH] atomic: add *_dec_not

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Date:	Wed, 4 May 2011 09:03:12 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Sven Eckelmann <sven@...fation.org>
Cc:	linux-kernel@...r.kernel.org, David Howells <dhowells@...hat.com>,
	Chris Metcalf <cmetcalf@...era.com>, x86@...nel.org,
	linux-alpha@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	uclinux-dist-devel@...ckfin.uclinux.org,
	linux-cris-kernel@...s.com, linux-ia64@...r.kernel.org,
	linux-m32r@...linux-m32r.org, linux-m68k@...ts.linux-m68k.org,
	linux-mips@...ux-mips.org, linux-am33-list@...hat.com,
	linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-s390@...r.kernel.org, linux-sh@...r.kernel.org,
	sparclinux@...r.kernel.org, linux-arch@...r.kernel.org
Subject: Re: [PATCH] atomic: add *_dec_not_zero


* Sven Eckelmann <sven@...fation.org> wrote:

> Introduce an *_dec_not_zero operation.  Make this a special case of
> *_add_unless because batman-adv uses atomic_dec_not_zero in different
> places like re-broadcast queue or aggregation queue management. There
> are other non-final patches which may also want to use this macro.

>  arch/x86/include/asm/atomic.h      |    1 +
>  arch/x86/include/asm/atomic64_64.h |    1 +

Acked-by: Ingo Molnar <mingo@...e.hu>

Thanks,

	Ingo
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