local_xchg
#define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
#define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
#define local_xchg(l, n) (atomic_long_xchg((&(l)->a), (n)))
static __inline__ long local_xchg(local_t *l, long n)
local_xchg(local_t *l, long n)
#define local_xchg(l, n) atomic_long_xchg((&(l)->a), (n))