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authorPavel Emelyanov <xemul@openvz.org>2007-12-08 00:12:33 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:56:57 -0800
commitb8e1f9b5c37e77cc8f978a58859b35fe5edd5542 (patch)
tree3c39da61f10eeb8b8e200ec68770128f1b57f25d /net
parent790a35328991b01181ff5624bdb084053b6fac54 (diff)
[NET] sysctl: make sysctl_somaxconn per-namespace
Just move the variable on the struct net and adjust its usage. Others sysctls from sys.net.core table are more difficult to virtualize (i.e. make them per-namespace), but I'll look at them as well a bit later. Signed-off-by: Pavel Emelyanov <xemul@oenvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/sysctl_net_core.c4
-rw-r--r--net/socket.c8
2 files changed, 7 insertions, 5 deletions
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index dc4cf7dda9d..130338f83ae 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -127,7 +127,7 @@ static struct ctl_table net_core_table[] = {
{
.ctl_name = NET_CORE_SOMAXCONN,
.procname = "somaxconn",
- .data = &sysctl_somaxconn,
+ .data = &init_net.sysctl_somaxconn,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec
@@ -161,6 +161,8 @@ static __net_init int sysctl_core_net_init(struct net *net)
{
struct ctl_table *tbl, *tmp;
+ net->sysctl_somaxconn = SOMAXCONN;
+
tbl = net_core_table;
if (net != &init_net) {
tbl = kmemdup(tbl, sizeof(net_core_table), GFP_KERNEL);
diff --git a/net/socket.c b/net/socket.c
index 9ebca5c695d..7651de00850 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1365,17 +1365,17 @@ asmlinkage long sys_bind(int fd, struct sockaddr __user *umyaddr, int addrlen)
* ready for listening.
*/
-int sysctl_somaxconn __read_mostly = SOMAXCONN;
-
asmlinkage long sys_listen(int fd, int backlog)
{
struct socket *sock;
int err, fput_needed;
+ int somaxconn;
sock = sockfd_lookup_light(fd, &err, &fput_needed);
if (sock) {
- if ((unsigned)backlog > sysctl_somaxconn)
- backlog = sysctl_somaxconn;
+ somaxconn = sock->sk->sk_net->sysctl_somaxconn;
+ if ((unsigned)backlog > somaxconn)
+ backlog = somaxconn;
err = security_socket_listen(sock, backlog);
if (!err)