tcp_nv: use do_div() instead of expensive div64_u64()
authorKonstantin Khlebnikov <khlebnikov@yandex-team.ru>
Thu, 2 Nov 2017 14:07:05 +0000 (17:07 +0300)
committerDavid S. Miller <davem@davemloft.net>
Sat, 4 Nov 2017 13:34:52 +0000 (22:34 +0900)
commit991a26af2e65e0422b2a899e373c0146f2436cae
treef4bc9dcd39fd1d3e88d79446f9e7b6e727e074a2
parent9d917c207d6b212eb5fb4d8ca31826e5b75b4d28
tcp_nv: use do_div() instead of expensive div64_u64()

Average RTT is 32-bit thus full 64-bit division is redundant.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Suggested-by: Stephen Hemminger <stephen@networkplumber.org>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_nv.c