diff options
| -rw-r--r-- | net/ipv6/ip6_fib.c | 15 | ||||
| -rw-r--r-- | net/ipv6/route.c | 49 |
2 files changed, 19 insertions, 45 deletions
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 265401abb98e..e3b35e146eef 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -153,11 +153,6 @@ static void node_free(struct fib6_node *fn) kmem_cache_free(fib6_node_kmem, fn); } -static void rt6_rcu_free(struct rt6_info *rt) -{ - call_rcu(&rt->dst.rcu_head, dst_rcu_free); -} - static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt) { int cpu; @@ -174,7 +169,6 @@ static void rt6_free_pcpu(struct rt6_info *non_pcpu_rt) if (pcpu_rt) { dst_dev_put(&pcpu_rt->dst); dst_release(&pcpu_rt->dst); - rt6_rcu_free(pcpu_rt); *ppcpu_rt = NULL; } } @@ -189,7 +183,6 @@ static void rt6_release(struct rt6_info *rt) rt6_free_pcpu(rt); dst_dev_put(&rt->dst); dst_release(&rt->dst); - rt6_rcu_free(rt); } } @@ -1108,9 +1101,7 @@ out: /* Always release dst as dst->__refcnt is guaranteed * to be taken before entering this function */ - dst_release(&rt->dst); - if (!(rt->dst.flags & DST_NOCACHE)) - dst_free(&rt->dst); + dst_release_immediate(&rt->dst); } return err; @@ -1124,9 +1115,7 @@ st_failure: /* Always release dst as dst->__refcnt is guaranteed * to be taken before entering this function */ - dst_release(&rt->dst); - if (!(rt->dst.flags & DST_NOCACHE)) - dst_free(&rt->dst); + dst_release_immediate(&rt->dst); return err; #endif } diff --git a/net/ipv6/route.c b/net/ipv6/route.c index c52c51908881..5f859ee67172 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -354,7 +354,8 @@ static struct rt6_info *__ip6_dst_alloc(struct net *net, int flags) { struct rt6_info *rt = dst_alloc(&net->ipv6.ip6_dst_ops, dev, - 1, DST_OBSOLETE_FORCE_CHK, flags); + 1, DST_OBSOLETE_FORCE_CHK, + flags | DST_NOGC); if (rt) rt6_info_init(rt); @@ -381,9 +382,7 @@ struct rt6_info *ip6_dst_alloc(struct net *net, *p = NULL; } } else { - dst_release(&rt->dst); - if (!(flags & DST_NOCACHE)) - dst_destroy((struct dst_entry *)rt); + dst_release_immediate(&rt->dst); return NULL; } } @@ -1053,8 +1052,7 @@ static struct rt6_info *rt6_make_pcpu_route(struct rt6_info *rt) prev = cmpxchg(p, NULL, pcpu_rt); if (prev) { /* If someone did it before us, return prev instead */ - dst_release(&pcpu_rt->dst); - dst_destroy(&pcpu_rt->dst); + dst_release_immediate(&pcpu_rt->dst); pcpu_rt = prev; } } else { @@ -1064,8 +1062,7 @@ static struct rt6_info *rt6_make_pcpu_route(struct rt6_info *rt) * since rt is going away anyway. The next * dst_check() will trigger a re-lookup. */ - dst_release(&pcpu_rt->dst); - dst_destroy(&pcpu_rt->dst); + dst_release_immediate(&pcpu_rt->dst); pcpu_rt = rt; } dst_hold(&pcpu_rt->dst); @@ -1257,9 +1254,8 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori struct net_device *loopback_dev = net->loopback_dev; struct dst_entry *new = NULL; - rt = dst_alloc(&ip6_dst_blackhole_ops, loopback_dev, 1, - DST_OBSOLETE_NONE, 0); + DST_OBSOLETE_NONE, DST_NOGC); if (rt) { rt6_info_init(rt); @@ -1279,8 +1275,6 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori #ifdef CONFIG_IPV6_SUBTREES memcpy(&rt->rt6i_src, &ort->rt6i_src, sizeof(struct rt6key)); #endif - - dst_free(new); } dst_release(dst_orig); @@ -1692,12 +1686,10 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev, rt->rt6i_idev = idev; dst_metric_set(&rt->dst, RTAX_HOPLIMIT, 0); - spin_lock_bh(&icmp6_dst_lock); - rt->dst.next = icmp6_dst_gc_list; - icmp6_dst_gc_list = &rt->dst; - spin_unlock_bh(&icmp6_dst_lock); - - fib6_force_start_gc(net); + /* Add this dst into uncached_list so that rt6_ifdown() can + * do proper release of the net_device + */ + rt6_uncached_list_add(rt); dst = xfrm_lookup(net, &rt->dst, flowi6_to_flowi(fl6), NULL, 0); @@ -2142,10 +2134,8 @@ out: dev_put(dev); if (idev) in6_dev_put(idev); - if (rt) { - dst_release(&rt->dst); - dst_free(&rt->dst); - } + if (rt) + dst_release_immediate(&rt->dst); return ERR_PTR(err); } @@ -2174,10 +2164,8 @@ int ip6_route_add(struct fib6_config *cfg, return err; out: - if (rt) { - dst_release(&rt->dst); - dst_free(&rt->dst); - } + if (rt) + dst_release_immediate(&rt->dst); return err; } @@ -3206,8 +3194,7 @@ static int ip6_route_multipath_add(struct fib6_config *cfg, err = ip6_route_info_append(&rt6_nh_list, rt, &r_cfg); if (err) { - dst_release(&rt->dst); - dst_free(&rt->dst); + dst_release_immediate(&rt->dst); goto cleanup; } @@ -3270,10 +3257,8 @@ add_errout: cleanup: list_for_each_entry_safe(nh, nh_safe, &rt6_nh_list, next) { - if (nh->rt6_info) { - dst_release(&nh->rt6_info->dst); - dst_free(&nh->rt6_info->dst); - } + if (nh->rt6_info) + dst_release_immediate(&nh->rt6_info->dst); kfree(nh->mxc.mx); list_del(&nh->next); kfree(nh); |