From cd1c701432fbf84ad5ea1d8012ddd398a560bccc Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@openvz.org>
Date: Wed, 16 Apr 2008 00:51:12 -0700
Subject: [PATCH] [VLAN]: Add a net argument to proc init and cleanup calls.

All proc files will be created in each net, so prepare them for
this change now, not to mess it with real creation patch.

The net != &init_net checks in them are for git-bisect sanity,
but I will drop them soon.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/8021q/vlan.c     | 15 +++++++--------
 net/8021q/vlanproc.c | 12 +++++++++---
 net/8021q/vlanproc.h | 10 ++++++----
 3 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 92966016a221..541542e2a2c1 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -642,8 +642,14 @@ static int vlan_init_net(struct net *net)
 	if (err < 0)
 		goto err_assign;
 
+	err = vlan_proc_init(net);
+	if (err < 0)
+		goto err_proc;
+
 	return 0;
 
+err_proc:
+	/* nothing */
 err_assign:
 	kfree(vn);
 err_alloc:
@@ -655,6 +661,7 @@ static void vlan_exit_net(struct net *net)
 	struct vlan_net *vn;
 
 	vn = net_generic(net, vlan_net_id);
+	vlan_proc_cleanup(net);
 	kfree(vn);
 }
 
@@ -674,10 +681,6 @@ static int __init vlan_proto_init(void)
 	if (err < 0)
 		goto err0;
 
-	err = vlan_proc_init();
-	if (err < 0)
-		goto err1;
-
 	err = register_netdevice_notifier(&vlan_notifier_block);
 	if (err < 0)
 		goto err2;
@@ -693,8 +696,6 @@ static int __init vlan_proto_init(void)
 err3:
 	unregister_netdevice_notifier(&vlan_notifier_block);
 err2:
-	vlan_proc_cleanup();
-err1:
 	unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
 err0:
 	return err;
@@ -715,8 +716,6 @@ static void __exit vlan_cleanup_module(void)
 	for (i = 0; i < VLAN_GRP_HASH_SIZE; i++)
 		BUG_ON(!hlist_empty(&vlan_group_hash[i]));
 
-	vlan_proc_cleanup();
-
 	unregister_pernet_gen_device(vlan_net_id, &vlan_net_ops);
 
 	synchronize_net();
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index 24cd96ee8109..4d13aeb88584 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -138,8 +138,11 @@ static const char *vlan_name_type_str[VLAN_NAME_TYPE_HIGHEST] = {
  *	Clean up /proc/net/vlan entries
  */
 
-void vlan_proc_cleanup(void)
+void vlan_proc_cleanup(struct net *net)
 {
+	if (net != &init_net)
+		return;
+
 	if (proc_vlan_conf)
 		remove_proc_entry(name_conf, proc_vlan_dir);
 
@@ -155,8 +158,11 @@ void vlan_proc_cleanup(void)
  *	Create /proc/net/vlan entries
  */
 
-int __init vlan_proc_init(void)
+int vlan_proc_init(struct net *net)
 {
+	if (net != &init_net)
+		return 0;
+
 	proc_vlan_dir = proc_mkdir(name_root, init_net.proc_net);
 	if (!proc_vlan_dir)
 		goto err;
@@ -169,7 +175,7 @@ int __init vlan_proc_init(void)
 
 err:
 	pr_err("%s: can't create entry in proc filesystem!\n", __func__);
-	vlan_proc_cleanup();
+	vlan_proc_cleanup(net);
 	return -ENOBUFS;
 }
 
diff --git a/net/8021q/vlanproc.h b/net/8021q/vlanproc.h
index da542cacc5a5..063f60a3d5cc 100644
--- a/net/8021q/vlanproc.h
+++ b/net/8021q/vlanproc.h
@@ -2,15 +2,17 @@
 #define __BEN_VLAN_PROC_INC__
 
 #ifdef CONFIG_PROC_FS
-int vlan_proc_init(void);
+struct net;
+
+int vlan_proc_init(struct net *net);
 int vlan_proc_rem_dev(struct net_device *vlandev);
 int vlan_proc_add_dev(struct net_device *vlandev);
-void vlan_proc_cleanup(void);
+void vlan_proc_cleanup(struct net *net);
 
 #else /* No CONFIG_PROC_FS */
 
-#define vlan_proc_init()	(0)
-#define vlan_proc_cleanup()	do {} while (0)
+#define vlan_proc_init(net)	(0)
+#define vlan_proc_cleanup(net)	do {} while (0)
 #define vlan_proc_add_dev(dev)	({(void)(dev), 0; })
 #define vlan_proc_rem_dev(dev)	({(void)(dev), 0; })
 #endif