atomic_subtract_acq_int
#define atomic_subtract_acq_32 atomic_subtract_acq_int
#define atomic_subtract_acq_32 atomic_subtract_acq_int
atomic_subtract_acq_int((volatile u_int *)(p), (u_int)(v))
#define atomic_subtract_acq_32 atomic_subtract_acq_int
#define atomic_subtract_acq_ptr atomic_subtract_acq_int