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authorDavid S. Miller <davem@davemloft.net>2012-06-09 16:27:05 -0700
committerDavid S. Miller <davem@davemloft.net>2012-06-09 16:27:05 -0700
commitc3426b47190d7c6785230c91a706fd42208b4120 (patch)
tree5444acfb2ef8a59c46e580cda8101c32fd3c2973 /net/ipv4/inetpeer.c
parent[PATCH] tcp: Cache inetpeer in timewait socket, and only when necessary. (diff)
downloadlinux-dev-c3426b47190d7c6785230c91a706fd42208b4120.tar.xz
linux-dev-c3426b47190d7c6785230c91a706fd42208b4120.zip
inet: Initialize per-netns inetpeer roots in net/ipv{4,6}/route.c
Instead of net/ipv4/inetpeer.c Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inetpeer.c')
-rw-r--r--net/ipv4/inetpeer.c64
1 files changed, 16 insertions, 48 deletions
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 1c8527349c86..d0d72f89b279 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -82,11 +82,13 @@ static const struct inet_peer peer_fake_node = {
.avl_height = 0
};
-struct inet_peer_base {
- struct inet_peer __rcu *root;
- seqlock_t lock;
- int total;
-};
+void inet_peer_base_init(struct inet_peer_base *bp)
+{
+ bp->root = peer_avl_empty_rcu;
+ seqlock_init(&bp->lock);
+ bp->total = 0;
+}
+EXPORT_SYMBOL_GPL(inet_peer_base_init);
#define PEER_MAXDEPTH 40 /* sufficient for about 2^27 nodes */
@@ -141,46 +143,6 @@ static void inetpeer_gc_worker(struct work_struct *work)
schedule_delayed_work(&gc_work, gc_delay);
}
-static int __net_init inetpeer_net_init(struct net *net)
-{
- net->ipv4.peers = kzalloc(sizeof(struct inet_peer_base),
- GFP_KERNEL);
- if (net->ipv4.peers == NULL)
- return -ENOMEM;
-
- net->ipv4.peers->root = peer_avl_empty_rcu;
- seqlock_init(&net->ipv4.peers->lock);
-
- net->ipv6.peers = kzalloc(sizeof(struct inet_peer_base),
- GFP_KERNEL);
- if (net->ipv6.peers == NULL)
- goto out_ipv6;
-
- net->ipv6.peers->root = peer_avl_empty_rcu;
- seqlock_init(&net->ipv6.peers->lock);
-
- return 0;
-out_ipv6:
- kfree(net->ipv4.peers);
- return -ENOMEM;
-}
-
-static void __net_exit inetpeer_net_exit(struct net *net)
-{
- inetpeer_invalidate_tree(net, AF_INET);
- kfree(net->ipv4.peers);
- net->ipv4.peers = NULL;
-
- inetpeer_invalidate_tree(net, AF_INET6);
- kfree(net->ipv6.peers);
- net->ipv6.peers = NULL;
-}
-
-static struct pernet_operations inetpeer_ops = {
- .init = inetpeer_net_init,
- .exit = inetpeer_net_exit,
-};
-
/* Called from ip_output.c:ip_init */
void __init inet_initpeers(void)
{
@@ -205,7 +167,6 @@ void __init inet_initpeers(void)
NULL);
INIT_DELAYED_WORK_DEFERRABLE(&gc_work, inetpeer_gc_worker);
- register_pernet_subsys(&inetpeer_ops);
}
static int addr_compare(const struct inetpeer_addr *a,
@@ -603,10 +564,9 @@ static void inetpeer_inval_rcu(struct rcu_head *head)
schedule_delayed_work(&gc_work, gc_delay);
}
-void inetpeer_invalidate_tree(struct net *net, int family)
+void __inetpeer_invalidate_tree(struct inet_peer_base *base)
{
struct inet_peer *old, *new, *prev;
- struct inet_peer_base *base = family_to_base(net, family);
write_seqlock_bh(&base->lock);
@@ -625,4 +585,12 @@ void inetpeer_invalidate_tree(struct net *net, int family)
out:
write_sequnlock_bh(&base->lock);
}
+EXPORT_SYMBOL(__inetpeer_invalidate_tree);
+
+void inetpeer_invalidate_tree(struct net *net, int family)
+{
+ struct inet_peer_base *base = family_to_base(net, family);
+
+ __inetpeer_invalidate_tree(base);
+}
EXPORT_SYMBOL(inetpeer_invalidate_tree);