Commit d296ba60 authored Apr 25, 2016 by Craig Gallek Committed by David S. Miller Apr 25, 2016

soreuseport: Resolve merge conflict for v4/v6 ordering fix

d894ba18 ("soreuseport: fix ordering for mixed v4/v6 sockets")
was merged as a bug fix to the net tree.  Two conflicting changes
were committed to net-next before the above fix was merged back to
net-next:
ca065d0c ("udp: no longer use SLAB_DESTROY_BY_RCU")
3b24d854 ("tcp/dccp: do not touch listener sk_refcnt under synflood")

These changes switched the datastructure used for TCP and UDP sockets
from hlist_nulls to hlist.  This patch applies the necessary parts
of the net tree fix to net-next which were not automatic as part of the
merge.

Fixes: 1602f49b ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net"

)
Signed-off-by: Craig Gallek <kraig@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 5e91f6ce

include/net/sock.h

+5 −1

Original line number	Diff line number	Diff line
		@@ -630,6 +630,10 @@ static inline void sk_add_node(struct sock sk, struct hlist_head list)
		static inline void sk_add_node_rcu(struct sock sk, struct hlist_head list)
		{
		sock_hold(sk);
		if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport &&
		sk->sk_family == AF_INET6)
		hlist_add_tail_rcu(&sk->sk_node, list);
		else
		hlist_add_head_rcu(&sk->sk_node, list);
		}

net/ipv4/inet_hashtables.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -479,6 +479,10 @@ int __inet_hash(struct sock sk, struct sock osk,
		if (err)
		goto unlock;
		}
		if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport &&
		sk->sk_family == AF_INET6)
		hlist_add_tail_rcu(&sk->sk_node, &ilb->head);
		else
		hlist_add_head_rcu(&sk->sk_node, &ilb->head);
		sock_set_flag(sk, SOCK_RCU_FREE);
		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);