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authorNikolay Borisov <kernel@kyup.com>2016-01-07 17:38:45 +0300
committerDavid S. Miller <davem@davemloft.net>2016-01-11 01:32:09 +0300
commitb840d15d39128d08ed4486085e5507d2617b9ae1 (patch)
tree33189ee2067bbb204c886affcbca9ac764621f94 /include/net
parent9bd6861bd4326e3afd3f14a9ec8a723771fb20bb (diff)
downloadlinux-b840d15d39128d08ed4486085e5507d2617b9ae1.tar.xz
ipv4: Namespecify the tcp_keepalive_intvl sysctl knob
This is the final part required to namespaceify the tcp keep alive mechanism. Signed-off-by: Nikolay Borisov <kernel@kyup.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/netns/ipv4.h1
-rw-r--r--include/net/tcp.h5
2 files changed, 4 insertions, 2 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 6e26ea2d0374..2b7907a35568 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -96,6 +96,7 @@ struct netns_ipv4 {
int sysctl_tcp_keepalive_time;
int sysctl_tcp_keepalive_probes;
+ int sysctl_tcp_keepalive_intvl;
struct ping_group_range ping_group_range;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0646521400bf..a80255f4ca33 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -240,7 +240,6 @@ extern int sysctl_tcp_timestamps;
extern int sysctl_tcp_window_scaling;
extern int sysctl_tcp_sack;
extern int sysctl_tcp_fin_timeout;
-extern int sysctl_tcp_keepalive_intvl;
extern int sysctl_tcp_syn_retries;
extern int sysctl_tcp_synack_retries;
extern int sysctl_tcp_retries1;
@@ -1223,7 +1222,9 @@ void tcp_enter_memory_pressure(struct sock *sk);
static inline int keepalive_intvl_when(const struct tcp_sock *tp)
{
- return tp->keepalive_intvl ? : sysctl_tcp_keepalive_intvl;
+ struct net *net = sock_net((struct sock *)tp);
+
+ return tp->keepalive_intvl ? : net->ipv4.sysctl_tcp_keepalive_intvl;
}
static inline int keepalive_time_when(const struct tcp_sock *tp)