PF_THRESHOLD_MULT  595 net/pf.c       	threshold->limit = limit * PF_THRESHOLD_MULT;
PF_THRESHOLD_MULT  611 net/pf.c       	threshold->count += PF_THRESHOLD_MULT;
PF_THRESHOLD_MULT  626 net/pfvar.h    #define PF_THRESHOLD_MAX	0xffffffff / PF_THRESHOLD_MULT