Wen Yang 7e70784f17 tcp_bbr: improve arithmetic division in bbr_update_bw()
[ Upstream commit 5b2f1f3070b6447b76174ea8bfb7390dc6253ebd ]

do_div() does a 64-by-32 division. Use div64_long() instead of it
if the divisor is long, to avoid truncation to 32-bit.
And as a nice side effect also cleans up the function a bit.

Signed-off-by: Wen Yang <wenyang@linux.alibaba.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-29 15:02:36 +01:00
..
2020-01-29 15:02:36 +01:00
2020-01-29 15:02:35 +01:00
2019-09-16 08:20:44 +02:00
2019-06-22 08:16:14 +02:00
2019-12-05 15:38:15 +01:00
2020-01-29 15:02:36 +01:00
2020-01-17 19:45:49 +01:00
2019-01-09 17:14:46 +01:00
2020-01-17 19:45:49 +01:00