[PATCH] atomic: add *_dec_not_zero
From: davem@davemloft.net (David Miller)
Date: 2011-05-04 06:13:33
Also in:
linux-alpha, linux-arch, linux-m68k, linux-mips, linux-s390, linux-sh, linuxppc-dev, lkml, sparclinux
From: Sven Eckelmann <sven@narfation.org> Date: Tue, 3 May 2011 23:30:35 +0200
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. Reported-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: David S. Miller <davem@davemloft.net>