@@ -761,12 +761,44 @@ struct net *get_net_ns_by_pid(pid_t pid)
}
EXPORT_SYMBOL_GPL(get_net_ns_by_pid);
+#ifdef CONFIG_NET_NS_REFCNT_TRACKER
+static void net_ns_net_debugfs(struct net *net)
+{
+ char name[32];
+ size_t len;
+
+ len = snprintf(name, sizeof(name), "net-%u-refcnt", net->ns.inum);
+ if (len < sizeof(name))
+ ref_tracker_dir_debugfs(&net->refcnt_tracker, name);
+
+ len = snprintf(name, sizeof(name), "net-%u-notrefcnt", net->ns.inum);
+ if (len < sizeof(name))
+ ref_tracker_dir_debugfs(&net->notrefcnt_tracker, name);
+}
+
+static int __init init_net_debugfs(void)
+{
+ net_ns_net_debugfs(&init_net);
+ return 0;
+}
+late_initcall(init_net_debugfs);
+#else
+static void net_ns_net_debugfs(struct net *net)
+{
+}
+#endif
+
static __net_init int net_ns_net_init(struct net *net)
{
+ int ret;
+
#ifdef CONFIG_NET_NS
net->ns.ops = &netns_operations;
#endif
- return ns_alloc_inum(&net->ns);
+ ret = ns_alloc_inum(&net->ns);
+ if (!ret)
+ net_ns_net_debugfs(net);
+ return ret;
}
static __net_exit void net_ns_net_exit(struct net *net)
After assigning the inode number to the namespace, use it to create a unique name for each netns refcount tracker and register the debugfs files for them. The init_net is registered early in the boot process before the ref_tracker dir is created, so add a late_initcall() to register its files. Signed-off-by: Jeff Layton <jlayton@kernel.org> --- net/core/net_namespace.c | 34 +++++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-)