diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/neighbour.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/net/core/neighbour.c b/net/core/neighbour.c index c3b58712e98b..03fdc5ae66b0 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -138,11 +138,17 @@ static void neigh_change_state(struct neighbour *n, u8 new) * add to the gc list if new state is not permanent */ if (new_is_perm && on_gc_list) { + write_lock_bh(&n->tbl->lock); list_del_init(&n->gc_list); + write_unlock_bh(&n->tbl->lock); + atomic_dec(&n->tbl->gc_entries); } else if (!new_is_perm && !on_gc_list) { /* add entries to the tail; cleaning removes from the front */ + write_lock_bh(&n->tbl->lock); list_add_tail(&n->gc_list, &n->tbl->gc_list); + write_unlock_bh(&n->tbl->lock); + atomic_inc(&n->tbl->gc_entries); } } @@ -390,11 +396,7 @@ do_alloc: n->tbl = tbl; refcount_set(&n->refcnt, 1); n->dead = 1; - - if (!permanent) - list_add_tail(&n->gc_list, &n->tbl->gc_list); - else - INIT_LIST_HEAD(&n->gc_list); + INIT_LIST_HEAD(&n->gc_list); atomic_inc(&tbl->entries); out: @@ -616,6 +618,9 @@ static struct neighbour *___neigh_create(struct neigh_table *tbl, } n->dead = 0; + if (!permanent) + list_add_tail(&n->gc_list, &n->tbl->gc_list); + if (want_ref) neigh_hold(n); rcu_assign_pointer(n->next, |