diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2014-04-23 19:32:50 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-07-27 14:06:24 +0200 |
| commit | e6942b7de2dfe44ebde9bae57dadece5abca9de8 (patch) | |
| tree | b235317c5f6d200bcc25b43a406237a0d15319cf /include/asm-generic/atomic.h | |
| parent | 2957c035395e492463d7f589af9dd32388967bbb (diff) | |
| download | lwn-e6942b7de2dfe44ebde9bae57dadece5abca9de8.tar.gz lwn-e6942b7de2dfe44ebde9bae57dadece5abca9de8.zip | |
atomic: Provide atomic_{or,xor,and}
Implement atomic logic ops -- atomic_{or,xor,and}.
These will replace the atomic_{set,clear}_mask functions that are
available on some archs.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/asm-generic/atomic.h')
| -rw-r--r-- | include/asm-generic/atomic.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/include/asm-generic/atomic.h b/include/asm-generic/atomic.h index 92947e0a532a..a41b0b8f7404 100644 --- a/include/asm-generic/atomic.h +++ b/include/asm-generic/atomic.h @@ -102,24 +102,27 @@ ATOMIC_OP_RETURN(sub, -) ATOMIC_OP(and, &) #endif -#ifndef atomic_clear_mask -#define atomic_clear_mask(i, v) atomic_and(~(i), (v)) -#endif - #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)) +#ifndef atomic_xor +ATOMIC_OP(xor, ^) #endif #undef ATOMIC_OP_RETURN #undef ATOMIC_OP +static inline __deprecated void atomic_clear_mask(unsigned int mask, atomic_t *v) +{ + atomic_and(~mask, v); +} + +static inline __deprecated void atomic_set_mask(unsigned int mask, atomic_t *v) +{ + atomic_or(mask, v); +} + /* * Atomic operations that C can't guarantee us. Useful for * resource counting etc.. |