From 6cc118bd506ae8c6436f507b838a0e1f6185fec2 Mon Sep 17 00:00:00 2001 From: Daniel Lezcano Date: Mon, 3 Mar 2008 23:33:43 -0800 Subject: [NETNS][IPV6] rt6_stats - dynamically allocate the routes statistics This patch allocates the rt6_stats struct dynamically when the fib6 is initialized. That provides the ability to create several instances of this structure for the network namespaces. Signed-off-by: Daniel Lezcano Signed-off-by: Benjamin Thery Signed-off-by: David S. Miller --- net/ipv6/ip6_fib.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) (limited to 'net/ipv6/ip6_fib.c') diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 350a970ca1e..7d82ad54014 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -48,7 +48,7 @@ #define RT6_TRACE(x...) do { ; } while (0) #endif -struct rt6_statistics rt6_stats; +struct rt6_statistics *rt6_stats; static struct kmem_cache * fib6_node_kmem __read_mostly; @@ -653,10 +653,10 @@ static int fib6_add_rt2node(struct fib6_node *fn, struct rt6_info *rt, rt->rt6i_node = fn; atomic_inc(&rt->rt6i_ref); inet6_rt_notify(RTM_NEWROUTE, rt, info); - rt6_stats.fib_rt_entries++; + rt6_stats->fib_rt_entries++; if ((fn->fn_flags & RTN_RTINFO) == 0) { - rt6_stats.fib_route_nodes++; + rt6_stats->fib_route_nodes++; fn->fn_flags |= RTN_RTINFO; } @@ -1093,8 +1093,8 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp, /* Unlink it */ *rtp = rt->u.dst.rt6_next; rt->rt6i_node = NULL; - rt6_stats.fib_rt_entries--; - rt6_stats.fib_discarded_routes++; + rt6_stats->fib_rt_entries--; + rt6_stats->fib_discarded_routes++; /* Reset round-robin state, if necessary */ if (fn->rr_ptr == rt) @@ -1117,7 +1117,7 @@ static void fib6_del_route(struct fib6_node *fn, struct rt6_info **rtp, /* If it was last route, expunge its radix tree node */ if (fn->leaf == NULL) { fn->fn_flags &= ~RTN_RTINFO; - rt6_stats.fib_route_nodes--; + rt6_stats->fib_route_nodes--; fn = fib6_repair_tree(fn); } @@ -1556,9 +1556,14 @@ int __init fib6_init(void) if (!fib6_node_kmem) goto out; + ret = -ENOMEM; + rt6_stats = kzalloc(sizeof(*rt6_stats), GFP_KERNEL); + if (!rt6_stats) + goto out_kmem_cache_create; + ret = register_pernet_subsys(&fib6_net_ops); if (ret) - goto out_kmem_cache_create; + goto out_rt6_stats; ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib); if (ret) @@ -1568,6 +1573,8 @@ out: out_unregister_subsys: unregister_pernet_subsys(&fib6_net_ops); +out_rt6_stats: + kfree(rt6_stats); out_kmem_cache_create: kmem_cache_destroy(fib6_node_kmem); goto out; @@ -1576,5 +1583,6 @@ out_kmem_cache_create: void fib6_gc_cleanup(void) { unregister_pernet_subsys(&fib6_net_ops); + kfree(rt6_stats); kmem_cache_destroy(fib6_node_kmem); } -- cgit v1.2.3