@@ -283,6 +283,11 @@ struct ctl_path;
struct ctl_table;
struct ctl_table_header;
+#ifdef CONFIG_SYSCTL
+extern int net_sysctl_init(void);
+#else
+static inline int net_sysctl_init(void) { return 0; }
+#endif
extern struct ctl_table_header *register_net_sysctl_table(struct net *net,
const struct ctl_path *path, struct ctl_table *table);
extern struct ctl_table_header *register_net_sysctl_rotable(
@@ -2524,6 +2524,12 @@ EXPORT_SYMBOL(sock_unregister);
static int __init sock_init(void)
{
int err;
+ /*
+ * Initialize the network sysctl infrastructure.
+ */
+ err = net_sysctl_init();
+ if (err)
+ goto out;
/*
* Initialize sock SLAB cache.
@@ -89,7 +89,7 @@ static struct pernet_operations sysctl_pernet_ops = {
};
static struct ctl_table_header *net_header;
-static __init int net_sysctl_init(void)
+__init int net_sysctl_init(void)
{
static struct ctl_table empty[1];
int ret = -ENOMEM;
@@ -109,7 +109,6 @@ static __init int net_sysctl_init(void)
out:
return ret;
}
-subsys_initcall(net_sysctl_init);
struct ctl_table_header *register_net_sysctl_table(struct net *net,
const struct ctl_path *path, struct ctl_table *table)
If the netfilter code is modified to use register_net_sysctl_table the kernel fails to boot because the per net sysctl infrasturce is not setup soon enough. So to avoid races call net_sysctl_init from sock_init(). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> --- include/net/net_namespace.h | 5 +++++ net/socket.c | 6 ++++++ net/sysctl_net.c | 3 +-- 3 files changed, 12 insertions(+), 2 deletions(-)