Release 4.10 arch/x86/include/asm/cmpxchg_64.h

#ifndef _ASM_X86_CMPXCHG_64_H

#define _ASM_X86_CMPXCHG_64_H



static inline void set_64bit(volatile u64 *ptr, u64 val)
{
	*ptr = val;
}

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#define cmpxchg64(ptr, o, n)						\
({                                                                      \
        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
        cmpxchg((ptr), (o), (n));                                       \
})


#define cmpxchg64_local(ptr, o, n)					\
({                                                                      \
        BUILD_BUG_ON(sizeof(*(ptr)) != 8);                              \
        cmpxchg_local((ptr), (o), (n));                                 \
})


#define system_has_cmpxchg_double() boot_cpu_has(X86_FEATURE_CX16)

#endif /* _ASM_X86_CMPXCHG_64_H */
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Directory: arch/x86/include/asm

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