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typedef volatile __u32 atomic_t;
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typedef volatile __u32 atomic_t;
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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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#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
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    __asm__ volatile ("lock incl %0\n" : "=m" (*val));
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    __asm__ volatile ("lock incl %0\n" : "+m" (*val));
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#else
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#else
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    __asm__ volatile ("incl %0\n" : "=m" (*val));
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    __asm__ volatile ("incl %0\n" : "+m" (*val));
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#endif /* CONFIG_SMP */
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#endif /* CONFIG_SMP */
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}
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}
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static inline void atomic_dec(atomic_t *val) {
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static inline void atomic_dec(atomic_t *val) {
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#ifdef CONFIG_SMP
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#ifdef CONFIG_SMP
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    __asm__ volatile ("lock decl %0\n" : "=m" (*val));
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    __asm__ volatile ("lock decl %0\n" : "+m" (*val));
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#else
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#else
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    __asm__ volatile ("decl %0\n" : "=m" (*val));
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    __asm__ volatile ("decl %0\n" : "+m" (*val));
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#endif /* CONFIG_SMP */
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#endif /* CONFIG_SMP */
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}
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}
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static inline atomic_t atomic_inc_pre(atomic_t *val)
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{
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    atomic_t r;
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    __asm__ volatile (
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        "movl $1,%0;"
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        "lock xaddl %0,%1;"
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        : "=r"(r), "+m" (*val)
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    );
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    return r;
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}
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static inline atomic_t atomic_dec_pre(atomic_t *val)
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{
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    atomic_t r;
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    __asm__ volatile (
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        "movl $-1,%0;"
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        "lock xaddl %0,%1;"
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        : "=r"(r), "+m" (*val)
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    );
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    return r;
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}
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#define atomic_inc_post(val) (atomic_inc_pre(val)+1)
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#define atomic_dec_post(val) (atomic_dec_pre(val)-1)
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static inline int test_and_set(volatile int *val) {
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static inline int test_and_set(volatile int *val) {
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    int v;
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    int v;
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    __asm__ volatile (
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    __asm__ volatile (
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        "movl $1, %0\n"
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        "movl $1, %0\n"
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        "xchgl %0, %1\n"
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        "xchgl %0, %1\n"
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        : "=r" (v),"=m" (*val)
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        : "=r" (v),"+m" (*val)
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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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