1 files changed, 34 insertions, 18 deletions

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 0e93ca56eb69..2f9847924fa5 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -93,29 +93,20 @@ 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 +230,7 @@ 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 +253,7 @@ 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 +310,26 @@ 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 +1255,18 @@ 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 +1360,8 @@ 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 +1485,7 @@ 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);