tcp_nv: fix division by zero in tcpnv_acked()
authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
Wed, 1 Nov 2017 13:32:15 +0000 (16:32 +0300)
committerDavid S. Miller <davem@davemloft.net>
Thu, 2 Nov 2017 07:16:27 +0000 (16:16 +0900)
commit4eebff27ca4182bbf5f039dd60d79e2d7c0a707e
tree4e4eb972c1a18167c2d5d0e394fb033f4b20b4db
parent3a99df9a3d14cd866b5516f8cba515a3bfd554ab
tcp_nv: fix division by zero in tcpnv_acked()

Average RTT could become zero. This happened in real life at least twice.
This patch treats zero as 1us.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Acked-by: Lawrence Brakmo <Brakmo@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_nv.c