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authorNikolay Borisov <kernel@kyup.com>2016-01-07 17:38:44 +0300
committerDavid S. Miller <davem@davemloft.net>2016-01-11 01:32:09 +0300
commit9bd6861bd4326e3afd3f14a9ec8a723771fb20bb (patch)
tree4ce4ba2445adc7a7ca29cfb36fdb6be0b8c5e91b /include/net
parent13b287e8d1cad951634389f85b8c9b816bd3bb1e (diff)
downloadlinux-9bd6861bd4326e3afd3f14a9ec8a723771fb20bb.tar.xz
ipv4: Namespecify tcp_keepalive_probes sysctl knob
This is required to have full tcp keepalive mechanism namespace support. 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 9e9bbebaebd1..6e26ea2d0374 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -95,6 +95,7 @@ struct netns_ipv4 {
u32 sysctl_tcp_probe_interval;
int sysctl_tcp_keepalive_time;
+ int sysctl_tcp_keepalive_probes;
struct ping_group_range ping_group_range;
diff --git a/include/net/tcp.h b/include/net/tcp.h
index cb4d4cf25744..0646521400bf 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_probes;
extern int sysctl_tcp_keepalive_intvl;
extern int sysctl_tcp_syn_retries;
extern int sysctl_tcp_synack_retries;
@@ -1236,7 +1235,9 @@ static inline int keepalive_time_when(const struct tcp_sock *tp)
static inline int keepalive_probes(const struct tcp_sock *tp)
{
- return tp->keepalive_probes ? : sysctl_tcp_keepalive_probes;
+ struct net *net = sock_net((struct sock *)tp);
+
+ return tp->keepalive_probes ? : net->ipv4.sysctl_tcp_keepalive_probes;
}
static inline u32 keepalive_time_elapsed(const struct tcp_sock *tp)