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Date: Wed, 4 May 2011 00:44:46 -0400 From: Mike Frysinger <vapier.adi@...il.com> 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 On Tue, May 3, 2011 at 17:30, Sven Eckelmann 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. > > Cc: uclinux-dist-devel@...ckfin.uclinux.org > > --- a/arch/blackfin/include/asm/atomic.h > +++ b/arch/blackfin/include/asm/atomic.h > @@ -103,6 +103,7 @@ static inline int atomic_test_mask(int mask, atomic_t *v) > c != (u); \ > }) > #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) > +#define atomic_dec_not_zero(v) atomic_add_unless((v), -1, 0) > > /* > * atomic_inc_and_test - increment and test no opinion on the actual idea, but for the Blackfin pieces: Acked-by: Mike Frysinger <vapier@...too.org> -mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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