now_us            150 net/ipv4/tcp_cdg.c 		u32 now_us = tp->tcp_mstamp;
now_us            153 net/ipv4/tcp_cdg.c 			ca->last_ack = now_us;
now_us            154 net/ipv4/tcp_cdg.c 			ca->round_start = now_us;
now_us            155 net/ipv4/tcp_cdg.c 		} else if (before(now_us, ca->last_ack + 3000)) {
now_us            158 net/ipv4/tcp_cdg.c 			ca->last_ack = now_us;
now_us            159 net/ipv4/tcp_cdg.c 			if (after(now_us, ca->round_start + base_owd)) {