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Commit cf4432f5 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

ip6tnl: Optimize multiple unregistration 



Speedup module unloading by factorizing synchronize_rcu() calls

Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8c56ba05

net/ipv6/ip6_tunnel.c

+8 −3
Original line number Diff line number Diff line
@@ -1393,14 +1393,19 @@ static void ip6_tnl_destroy_tunnels(struct ip6_tnl_net *ip6n) 
{

	int h;

	struct ip6_tnl *t;

	LIST_HEAD(list);



	for (h = 0; h < HASH_SIZE; h++) {

		while ((t = ip6n->tnls_r_l[h]) != NULL)

			unregister_netdevice(t->dev);

		t = ip6n->tnls_r_l[h];

		while (t != NULL) {

			unregister_netdevice_queue(t->dev, &list);

			t = t->next;

		}

	}



	t = ip6n->tnls_wc[0];

	unregister_netdevice(t->dev);

	unregister_netdevice_queue(t->dev, &list);

	unregister_netdevice_many(&list);

}



static int ip6_tnl_init_net(struct net *net)