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>
This commit is contained in:
Peter Zijlstra
2014-04-23 19:32:50 +02:00
committed by Thomas Gleixner
parent 2957c03539
commit e6942b7de2
29 changed files with 19 additions and 68 deletions

View File

@@ -41,8 +41,6 @@ static inline void atomic_##op(int i, atomic_t *v) \
_atomic_##op((unsigned long *)&v->counter, i); \
}
#define CONFIG_ARCH_HAS_ATOMIC_OR
ATOMIC_OP(and)
ATOMIC_OP(or)
ATOMIC_OP(xor)

View File

@@ -58,8 +58,6 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
return oldval;
}
#define CONFIG_ARCH_HAS_ATOMIC_OR
static inline void atomic_and(int i, atomic_t *v)
{
__insn_fetchand4((void *)&v->counter, i);