diff options
| -rw-r--r-- | drivers/net/bonding/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_debugfs.c | 96 | ||||
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 10 | ||||
| -rw-r--r-- | drivers/net/bonding/bonding.h | 9 |
4 files changed, 115 insertions, 2 deletions
diff --git a/drivers/net/bonding/Makefile b/drivers/net/bonding/Makefile index 6f9c6faef24c..0e2737eac8b7 100644 --- a/drivers/net/bonding/Makefile +++ b/drivers/net/bonding/Makefile @@ -4,7 +4,7 @@ obj-$(CONFIG_BONDING) += bonding.o -bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o +bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o bond_debugfs.o ipv6-$(subst m,y,$(CONFIG_IPV6)) += bond_ipv6.o bonding-objs += $(ipv6-y) diff --git a/drivers/net/bonding/bond_debugfs.c b/drivers/net/bonding/bond_debugfs.c new file mode 100644 index 000000000000..ae1eb2fc3a47 --- /dev/null +++ b/drivers/net/bonding/bond_debugfs.c @@ -0,0 +1,96 @@ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/netdevice.h> + +#include "bonding.h" + +#ifdef CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include <linux/seq_file.h> + +static struct dentry *bonding_debug_root; + +void bond_debug_register(struct bonding *bond) +{ + if (!bonding_debug_root) + return; + + bond->debug_dir = + debugfs_create_dir(bond->dev->name, bonding_debug_root); + + if (!bond->debug_dir) { + pr_warning("%s: Warning: failed to register to debugfs\n", + bond->dev->name); + return; + } +} + +void bond_debug_unregister(struct bonding *bond) +{ + if (!bonding_debug_root) + return; + + debugfs_remove_recursive(bond->debug_dir); +} + +void bond_debug_reregister(struct bonding *bond) +{ + struct dentry *d; + + if (!bonding_debug_root) + return; + + d = debugfs_rename(bonding_debug_root, bond->debug_dir, + bonding_debug_root, bond->dev->name); + if (d) { + bond->debug_dir = d; + } else { + pr_warning("%s: Warning: failed to reregister, " + "so just unregister old one\n", + bond->dev->name); + bond_debug_unregister(bond); + } +} + +void bond_create_debugfs(void) +{ + bonding_debug_root = debugfs_create_dir("bonding", NULL); + + if (!bonding_debug_root) { + pr_warning("Warning: Cannot create bonding directory" + " in debugfs\n"); + } +} + +void bond_destroy_debugfs(void) +{ + debugfs_remove_recursive(bonding_debug_root); + bonding_debug_root = NULL; +} + + +#else /* !CONFIG_DEBUG_FS */ + +void bond_debug_register(struct bonding *bond) +{ +} + +void bond_debug_unregister(struct bonding *bond) +{ +} + +void bond_debug_reregister(struct bonding *bond) +{ +} + +void bond_create_debugfs(void) +{ +} + +void bond_destroy_debugfs(void) +{ +} + +#endif /* CONFIG_DEBUG_FS */ 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); diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h index ad3ae46a4c01..03710f8f5c49 100644 --- a/drivers/net/bonding/bonding.h +++ b/drivers/net/bonding/bonding.h @@ -259,6 +259,10 @@ struct bonding { #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) struct in6_addr master_ipv6; #endif +#ifdef CONFIG_DEBUG_FS + /* debugging suport via debugfs */ + struct dentry *debug_dir; +#endif /* CONFIG_DEBUG_FS */ }; /** @@ -380,6 +384,11 @@ void bond_select_active_slave(struct bonding *bond); void bond_change_active_slave(struct bonding *bond, struct slave *new_active); void bond_register_arp(struct bonding *); void bond_unregister_arp(struct bonding *); +void bond_create_debugfs(void); +void bond_destroy_debugfs(void); +void bond_debug_register(struct bonding *bond); +void bond_debug_unregister(struct bonding *bond); +void bond_debug_reregister(struct bonding *bond); struct bond_net { struct net * net; /* Associated network namespace */ |