bonding: add the debugfs facility to the bonding driver

This patch provides the debugfs facility to the bonding driver.
The "bonding" directory is created in the debugfs root and directories of
each bonding interface (like bond0, bond1...) are created in that.

 # mount -t debugfs none /sys/kernel/debug

 # ls /sys/kernel/debug/bonding
 bond0  bond1

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index bb33b3b347fa..07011e42cec7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3503,6 +3503,8 @@ static int bond_event_changename(struct bonding *bond)
         bond_remove_proc_entry(bond);
         bond_create_proc_entry(bond);
 
+        bond_debug_reregister(bond);
+
         return NOTIFY_DONE;
 }
 
@@ -4785,6 +4787,8 @@ static void bond_uninit(struct net_device *bond_dev)
 
         bond_remove_proc_entry(bond);
 
+        bond_debug_unregister(bond);
+
         __hw_addr_flush(&bond->mc_list);
 
         list_for_each_entry_safe(vlan, tmp, &bond->vlan_list, vlan_list) {
@@ -5187,6 +5191,8 @@ static int bond_init(struct net_device *bond_dev)
 
         bond_prepare_sysfs_group(bond);
 
+        bond_debug_register(bond);
+
         __hw_addr_init(&bond->mc_list);
         return 0;
 }
@@ -5308,6 +5314,8 @@ static int __init bonding_init(void)
         if (res)
                 goto err_link;
 
+        bond_create_debugfs();
+
         for (i = 0; i < max_bonds; i++) {
                 res = bond_create(&init_net, NULL);
                 if (res)
@@ -5318,7 +5326,6 @@ static int __init bonding_init(void)
         if (res)
                 goto err;
 
-
         register_netdevice_notifier(&bond_netdev_notifier);
         register_inetaddr_notifier(&bond_inetaddr_notifier);
         bond_register_ipv6_notifier();
@@ -5342,6 +5349,7 @@ static void __exit bonding_exit(void)
         bond_unregister_ipv6_notifier();
 
         bond_destroy_sysfs();
+        bond_destroy_debugfs();
 
         rtnl_link_unregister(&bond_link_ops);
         unregister_pernet_subsys(&bond_net_ops);