diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-12-18 10:22:27 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-12-18 10:22:27 +1100 |
| commit | 376bddd34433065aeb9b9a140870537feecf90ef (patch) | |
| tree | a40e2b84ad89f4b3ba968de65a4bf7ff6ccae835 /net/ipv4/tcp_illinois.c | |
| parent | d526e85f60fce9aa2a1432cbd06e3cf20c1644c8 (diff) | |
| parent | 667b504a2c411e4d5915a6e2260a3857ba9f797a (diff) | |
Merge remote-tracking branch 'agust/next' into next
Brings some 52xx updates. Also manually merged tools/perf/perf.h.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'net/ipv4/tcp_illinois.c')
| -rw-r--r-- | net/ipv4/tcp_illinois.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c index 813b43a76fec..834857f3c871 100644 --- a/net/ipv4/tcp_illinois.c +++ b/net/ipv4/tcp_illinois.c @@ -313,11 +313,13 @@ static void tcp_illinois_info(struct sock *sk, u32 ext, .tcpv_rttcnt = ca->cnt_rtt, .tcpv_minrtt = ca->base_rtt, }; - u64 t = ca->sum_rtt; - do_div(t, ca->cnt_rtt); - info.tcpv_rtt = t; + if (info.tcpv_rttcnt > 0) { + u64 t = ca->sum_rtt; + do_div(t, info.tcpv_rttcnt); + info.tcpv_rtt = t; + } nla_put(skb, INET_DIAG_VEGASINFO, sizeof(info), &info); } } |