On Wed, 2011-05-04 at 00:44 -0400, Mike Frysinger wrote: > 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-de...@blackfin.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 <vap...@gentoo.org>
This goes for parisc as well. Acked-by: James Bottomley <james.bottom...@hansenpartnership.com> James _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
