diff options
Diffstat (limited to 'net/ipv6/ip6_fib.c')
| -rw-r--r-- | net/ipv6/ip6_fib.c | 53 |
1 files changed, 35 insertions, 18 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 0e93ca56eb69..6b82e02158c6 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -26,6 +26,7 @@ #include <linux/in6.h> #include <linux/init.h> #include <linux/list.h> +#include <linux/slab.h> #ifdef CONFIG_PROC_FS #include <linux/proc_fs.h> @@ -93,29 +94,20 @@ static __u32 rt_sernum; static void fib6_gc_timer_cb(unsigned long arg); -static struct fib6_walker_t fib6_walker_list = { - .prev = &fib6_walker_list, - .next = &fib6_walker_list, -}; - -#define FOR_WALKERS(w) for ((w)=fib6_walker_list.next; (w) != &fib6_walker_list; (w)=(w)->next) +static LIST_HEAD(fib6_walkers); +#define FOR_WALKERS(w) list_for_each_entry(w, &fib6_walkers, lh) static inline void fib6_walker_link(struct fib6_walker_t *w) { write_lock_bh(&fib6_walker_lock); - w->next = fib6_walker_list.next; - w->prev = &fib6_walker_list; - w->next->prev = w; - w->prev->next = w; + list_add(&w->lh, &fib6_walkers); write_unlock_bh(&fib6_walker_lock); } static inline void fib6_walker_unlink(struct fib6_walker_t *w) { write_lock_bh(&fib6_walker_lock); - w->next->prev = w->prev; - w->prev->next = w->next; - w->prev = w->next = w; + list_del(&w->lh); write_unlock_bh(&fib6_walker_lock); } static __inline__ u32 fib6_new_sernum(void) @@ -239,7 +231,7 @@ struct fib6_table *fib6_get_table(struct net *net, u32 id) return NULL; } -static void fib6_tables_init(struct net *net) +static void __net_init fib6_tables_init(struct net *net) { fib6_link_table(net, net->ipv6.fib6_main_tbl); fib6_link_table(net, net->ipv6.fib6_local_tbl); @@ -262,7 +254,7 @@ struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi *fl, return (struct dst_entry *) lookup(net, net->ipv6.fib6_main_tbl, fl, flags); } -static void fib6_tables_init(struct net *net) +static void __net_init fib6_tables_init(struct net *net) { fib6_link_table(net, net->ipv6.fib6_main_tbl); } @@ -319,12 +311,26 @@ static int fib6_dump_table(struct fib6_table *table, struct sk_buff *skb, w->root = &table->tb6_root; if (cb->args[4] == 0) { + w->count = 0; + w->skip = 0; + read_lock_bh(&table->tb6_lock); res = fib6_walk(w); read_unlock_bh(&table->tb6_lock); - if (res > 0) + if (res > 0) { cb->args[4] = 1; + cb->args[5] = w->root->fn_sernum; + } } else { + if (cb->args[5] != w->root->fn_sernum) { + /* Begin at the root if the tree changed */ + cb->args[5] = w->root->fn_sernum; + w->state = FWS_INIT; + w->node = w->root; + w->skip = w->count; + } else + w->skip = 0; + read_lock_bh(&table->tb6_lock); res = fib6_walk_continue(w); read_unlock_bh(&table->tb6_lock); @@ -1250,9 +1256,18 @@ static int fib6_walk_continue(struct fib6_walker_t *w) w->leaf = fn->leaf; case FWS_C: if (w->leaf && fn->fn_flags&RTN_RTINFO) { - int err = w->func(w); + int err; + + if (w->count < w->skip) { + w->count++; + continue; + } + + err = w->func(w); if (err) return err; + + w->count++; continue; } w->state = FWS_U; @@ -1346,6 +1361,8 @@ static void fib6_clean_tree(struct net *net, struct fib6_node *root, c.w.root = root; c.w.func = fib6_clean_node; c.w.prune = prune; + c.w.count = 0; + c.w.skip = 0; c.func = func; c.arg = arg; c.net = net; @@ -1469,7 +1486,7 @@ static void fib6_gc_timer_cb(unsigned long arg) fib6_run_gc(0, (struct net *)arg); } -static int fib6_net_init(struct net *net) +static int __net_init fib6_net_init(struct net *net) { setup_timer(&net->ipv6.ip6_fib_timer, fib6_gc_timer_cb, (unsigned long)net); |
