ipv4: remove ip_rt_secret timer (v4)

A while back there was a discussion regarding the rt_secret_interval timer.
Given that we've had the ability to do emergency route cache rebuilds for awhile
now, based on a statistical analysis of the various hash chain lengths in the
cache, the use of the flush timer is somewhat redundant.  This patch removes the
rt_secret_interval sysctl, allowing us to rely solely on the statistical
analysis mechanism to determine the need for route cache flushes.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 1 deletions

diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 59030570f5ca..937d31dc8566 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -224,7 +224,6 @@ static const struct bin_table bin_net_ipv4_route_table[] = {
         { CTL_INT,      NET_IPV4_ROUTE_MTU_EXPIRES,             "mtu_expires" },
         { CTL_INT,      NET_IPV4_ROUTE_MIN_PMTU,                "min_pmtu" },
         { CTL_INT,      NET_IPV4_ROUTE_MIN_ADVMSS,              "min_adv_mss" },
-        { CTL_INT,      NET_IPV4_ROUTE_SECRET_INTERVAL,         "secret_interval" },
         {}
 };