These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / x86 / include / asm / atomic64_32.h

diff --git a/kernel/arch/x86/include/asm/atomic64_32.h b/kernel/arch/x86/include/asm/atomic64_32.h
index b154de7..a11c30b 100644 (file)
--- a/kernel/arch/x86/include/asm/atomic64_32.h
+++ b/kernel/arch/x86/include/asm/atomic64_32.h
@@ -313,4 +313,18 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #undef alternative_atomic64
 #undef __alternative_atomic64
 
+#define ATOMIC64_OP(op, c_op)                                          \
+static inline void atomic64_##op(long long i, atomic64_t *v)           \
+{                                                                      \
+       long long old, c = 0;                                           \
+       while ((old = atomic64_cmpxchg(v, c, c c_op i)) != c)           \
+               c = old;                                                \
+}
+
+ATOMIC64_OP(and, &)
+ATOMIC64_OP(or, |)
+ATOMIC64_OP(xor, ^)
+
+#undef ATOMIC64_OP
+
 #endif /* _ASM_X86_ATOMIC64_32_H */