Commit 56d1defe authored by Peter Zijlstra's avatar Peter Zijlstra Committed by Thomas Gleixner
Browse files

atomic: Prepare generic atomic implementation for logic ops 



Clean up the #ifdef guards a bit to prepare for architectures to
supply their own logic ops.

Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent cbfe8fa6

include/asm-generic/atomic.h

+10 −2
Original line number Diff line number Diff line
@@ -98,14 +98,22 @@ ATOMIC_OP_RETURN(add, +) 
ATOMIC_OP_RETURN(sub, -)

#endif



#ifndef atomic_clear_mask

#ifndef atomic_and

ATOMIC_OP(and, &)

#endif



#ifndef atomic_clear_mask

#define atomic_clear_mask(i, v) atomic_and(~(i), (v))

#endif



#ifndef atomic_set_mask

#ifndef atomic_or

#ifndef CONFIG_ARCH_HAS_ATOMIC_OR

#define CONFIG_ARCH_HAS_ATOMIC_OR

#endif

ATOMIC_OP(or, |)

#endif



#ifndef atomic_set_mask

#define atomic_set_mask(i, v)	atomic_or((i), (v))

#endif