diff options
| -rw-r--r-- | include/net/ip_fib.h | 6 | ||||
| -rw-r--r-- | include/net/netns/ipv4.h | 2 | ||||
| -rw-r--r-- | net/ipv4/fib_frontend.c | 36 |
3 files changed, 28 insertions, 16 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index dfb95d732aa..025b225181e 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -120,8 +120,6 @@ struct fib_result_nl { int err; }; -extern struct hlist_head fib_table_hash[]; - #ifdef CONFIG_IP_ROUTE_MULTIPATH #define FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel]) @@ -170,8 +168,8 @@ static inline struct fib_table *fib_get_table(struct net *net, u32 id) struct hlist_head *ptr; ptr = id == RT_TABLE_LOCAL ? - &fib_table_hash[TABLE_LOCAL_INDEX] : - &fib_table_hash[TABLE_MAIN_INDEX]; + &net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX] : + &net->ipv4.fib_table_hash[TABLE_MAIN_INDEX]; return hlist_entry(ptr->first, struct fib_table, tb_hlist); } diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index a7bd5d83e43..2dd31937d02 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -8,6 +8,7 @@ struct ctl_table_header; struct ipv4_devconf; struct fib_rules_ops; +struct hlist_head; struct netns_ipv4 { #ifdef CONFIG_SYSCTL @@ -18,5 +19,6 @@ struct netns_ipv4 { #ifdef CONFIG_IP_MULTIPLE_TABLES struct fib_rules_ops *rules_ops; #endif + struct hlist_head *fib_table_hash; }; #endif diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 90aa05f47f8..7fe54a3c168 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -50,7 +50,6 @@ #define FFprint(a...) printk(KERN_DEBUG a) static struct sock *fibnl; -struct hlist_head fib_table_hash[FIB_TABLE_HASHSZ]; #ifndef CONFIG_IP_MULTIPLE_TABLES @@ -67,9 +66,9 @@ static int __net_init fib4_rules_init(struct net *net) goto fail; hlist_add_head_rcu(&local_table->tb_hlist, - &fib_table_hash[TABLE_LOCAL_INDEX]); + &net->ipv4.fib_table_hash[TABLE_LOCAL_INDEX]); hlist_add_head_rcu(&main_table->tb_hlist, - &fib_table_hash[TABLE_MAIN_INDEX]); + &net->ipv4.fib_table_hash[TABLE_MAIN_INDEX]); return 0; fail: @@ -92,7 +91,7 @@ struct fib_table *fib_new_table(struct net *net, u32 id) if (!tb) return NULL; h = id & (FIB_TABLE_HASHSZ - 1); - hlist_add_head_rcu(&tb->tb_hlist, &fib_table_hash[h]); + hlist_add_head_rcu(&tb->tb_hlist, &net->ipv4.fib_table_hash[h]); return tb; } @@ -100,13 +99,16 @@ struct fib_table *fib_get_table(struct net *net, u32 id) { struct fib_table *tb; struct hlist_node *node; + struct hlist_head *head; unsigned int h; if (id == 0) id = RT_TABLE_MAIN; h = id & (FIB_TABLE_HASHSZ - 1); + rcu_read_lock(); - hlist_for_each_entry_rcu(tb, node, &fib_table_hash[h], tb_hlist) { + head = &net->ipv4.fib_table_hash[h]; + hlist_for_each_entry_rcu(tb, node, head, tb_hlist) { if (tb->tb_id == id) { rcu_read_unlock(); return tb; @@ -117,15 +119,17 @@ struct fib_table *fib_get_table(struct net *net, u32 id) } #endif /* CONFIG_IP_MULTIPLE_TABLES */ -static void fib_flush(void) +static void fib_flush(struct net *net) { int flushed = 0; struct fib_table *tb; struct hlist_node *node; + struct hlist_head *head; unsigned int h; for (h = 0; h < FIB_TABLE_HASHSZ; h++) { - hlist_for_each_entry(tb, node, &fib_table_hash[h], tb_hlist) + head = &net->ipv4.fib_table_hash[h]; + hlist_for_each_entry(tb, node, head, tb_hlist) flushed += tb->tb_flush(tb); } @@ -620,6 +624,7 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) unsigned int e = 0, s_e; struct fib_table *tb; struct hlist_node *node; + struct hlist_head *head; int dumped = 0; if (net != &init_net) @@ -634,7 +639,8 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) for (h = s_h; h < FIB_TABLE_HASHSZ; h++, s_e = 0) { e = 0; - hlist_for_each_entry(tb, node, &fib_table_hash[h], tb_hlist) { + head = &net->ipv4.fib_table_hash[h]; + hlist_for_each_entry(tb, node, head, tb_hlist) { if (e < s_e) goto next; if (dumped) @@ -797,7 +803,7 @@ static void fib_del_ifaddr(struct in_ifaddr *ifa) for stray nexthop entries, then ignite fib_flush. */ if (fib_sync_down(ifa->ifa_local, NULL, 0)) - fib_flush(); + fib_flush(&init_net); } } #undef LOCAL_OK @@ -882,7 +888,7 @@ static void nl_fib_lookup_exit(struct net *net) static void fib_disable_ip(struct net_device *dev, int force) { if (fib_sync_down(0, dev, force)) - fib_flush(); + fib_flush(&init_net); rt_cache_flush(0); arp_ifdown(dev); } @@ -963,8 +969,13 @@ static int __net_init ip_fib_net_init(struct net *net) { unsigned int i; + net->ipv4.fib_table_hash = kzalloc( + sizeof(struct hlist_head)*FIB_TABLE_HASHSZ, GFP_KERNEL); + if (net->ipv4.fib_table_hash == NULL) + return -ENOMEM; + for (i = 0; i < FIB_TABLE_HASHSZ; i++) - INIT_HLIST_HEAD(&fib_table_hash[i]); + INIT_HLIST_HEAD(&net->ipv4.fib_table_hash[i]); return fib4_rules_init(net); } @@ -982,13 +993,14 @@ static void __net_exit ip_fib_net_exit(struct net *net) struct hlist_head *head; struct hlist_node *node, *tmp; - head = &fib_table_hash[i]; + head = &net->ipv4.fib_table_hash[i]; hlist_for_each_entry_safe(tb, node, tmp, head, tb_hlist) { hlist_del(node); tb->tb_flush(tb); kfree(tb); } } + kfree(net->ipv4.fib_table_hash); } static int __net_init fib_net_init(struct net *net) |