Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

atomic: Prepare generic atomic implementation for logic ops

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

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Peter Zijlstra 2015-07-15 15:47:25 +02:00 committed by Thomas Gleixner
parent cbfe8fa6cd
commit 56d1defe0b
1 changed files with 10 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
include/asm-generic/atomic.h
View file

@ -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