ipv4: Namespaceify tcp_orphan_retries sysctl knob

Signed-off-by: Nikolay Borisov <kernel@kyup.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 9 insertions, 9 deletions

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 8e339d43619c..b7af6336985f 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -420,13 +420,6 @@ static struct ctl_table ipv4_table[] = {
                 .proc_handler   = proc_dointvec_jiffies,
         },
         {
-                .procname       = "tcp_orphan_retries",
-                .data           = &sysctl_tcp_orphan_retries,
-                .maxlen         = sizeof(int),
-                .mode           = 0644,
-                .proc_handler   = proc_dointvec
-        },
-        {
                 .procname       = "tcp_fack",
                 .data           = &sysctl_tcp_fack,
                 .maxlen         = sizeof(int),
@@ -960,6 +953,13 @@ static struct ctl_table ipv4_net_table[] = {
                 .mode           = 0644,
                 .proc_handler   = proc_dointvec
         },
+        {
+                .procname       = "tcp_orphan_retries",
+                .data           = &init_net.ipv4.sysctl_tcp_orphan_retries,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec
+        },
         { }
 };
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 0710e6108a5e..1240dd62eee1 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2393,6 +2393,7 @@ static int __net_init tcp_sk_init(struct net *net)
         net->ipv4.sysctl_tcp_reordering = TCP_FASTRETRANS_THRESH;
         net->ipv4.sysctl_tcp_retries1 = TCP_RETR1;
         net->ipv4.sysctl_tcp_retries2 = TCP_RETR2;
+        net->ipv4.sysctl_tcp_orphan_retries = 0;
 
         return 0;
 fail:
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 09f4e0297e56..49bc474f8e35 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -22,7 +22,6 @@
 #include <linux/gfp.h>
 #include <net/tcp.h>
 
-int sysctl_tcp_orphan_retries __read_mostly;
 int sysctl_tcp_thin_linear_timeouts __read_mostly;
 
 static void tcp_write_err(struct sock *sk)
@@ -78,7 +77,7 @@ static int tcp_out_of_resources(struct sock *sk, bool do_reset)
 /* Calculate maximal number or retries on an orphaned socket. */
 static int tcp_orphan_retries(struct sock *sk, bool alive)
 {
-        int retries = sysctl_tcp_orphan_retries; /* May be zero. */
+        int retries = sock_net(sk)->ipv4.sysctl_tcp_orphan_retries; /* May be zero. */
 
         /* We know from an ICMP that something is wrong. */
         if (sk->sk_err_soft && !alive)