[RFC][PATCH 03/24] arm: Provide atomic_{or,xor,and}

[Peter Zijlstra]

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@xxxxxxxxxxxxx>
---
 arch/arm/include/asm/atomic.h |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -193,6 +193,9 @@ static inline int __atomic_add_unless(at
 
 ATOMIC_OPS(add, +=, add)
 ATOMIC_OPS(sub, -=, sub)
+ATOMIC_OP(and, &=, and)
+ATOMIC_OP(or, |=, orr)
+ATOMIC_OP(xor, ^=, eor)
 
 #undef ATOMIC_OPS
 #undef ATOMIC_OP_RETURN
@@ -320,6 +323,9 @@ static inline long long atomic64_##op##_
 
 ATOMIC64_OPS(add, adds, adc)
 ATOMIC64_OPS(sub, subs, sbc)
+ATOMIC64_OP(and, and, and)
+ATOMIC64_OP(or, or, or)
+ATOMIC64_OP(xor, eor, eor)
 
 #undef ATOMIC64_OPS
 #undef ATOMIC64_OP_RETURN


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