[PATCH] atomic: add *_dec_not_zero

[Will Deacon]

On Tue, 2011-05-03 at 22:30 +0100, 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.
> 
For the ARM changes:

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

Cheers,

Will