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    Subject[PATCH 09/10] atomic.h : Add atomic64_xchg to s390
    Date
    atomic.h : Add atomic64_xchg to s390

    Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>

    --- a/include/asm-s390/atomic.h
    +++ b/include/asm-s390/atomic.h
    @@ -215,6 +215,8 @@ static __inline__ void atomic64_set_mask(unsigned long mask, atomic64_t * v)
    __CSG_LOOP(v, mask, "ogr");
    }

    +#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
    +
    static __inline__ long long atomic64_cmpxchg(atomic64_t *v,
    long long old, long long new)
    {
    -
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