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Rev 3774 Rev 4664
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        "+m" (val->count) : "i" (imm));
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        "+m" (val->count) : "i" (imm));
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    return v;
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    return v;
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}
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}
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 - 
 
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static inline uint64_t test_and_set(atomic_t *val) {
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static inline uint64_t test_and_set(atomic_t *val)
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{
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    uint64_t v;
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    uint64_t v;
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    asm volatile (
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    asm volatile (
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        "movl %0 = 0x01;;\n"
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        "movl %0 = 0x1;;\n"
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        "xchg8 %0 = %1, %0;;\n"
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        "xchg8 %0 = %1, %0;;\n"
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        : "=r" (v), "+m" (val->count)
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        : "=r" (v), "+m" (val->count)
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    );
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    );
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    return v;
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    return v;
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}
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}
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- 
 
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static inline void atomic_lock_arch(atomic_t *val)
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{
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    do {
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        while (val->count)
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            ;
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    } while (test_and_set(val));
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}
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static inline void atomic_inc(atomic_t *val)
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static inline void atomic_inc(atomic_t *val)
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{
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{
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    atomic_add(val, 1);
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    atomic_add(val, 1);
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}
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}