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neigh: introduce neigh_confirm() helper function

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Add neigh_confirm() for the confirmed member in struct neighbour,
it can be called as an independent unit by other functions.

Signed-off-by: Yajun Deng <yajun.deng@linux.dev>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yajun Deng
2021-11-23 10:54:30 +08:00
committed by David S. Miller
parent a0c2ccd9b5
commit 1e84dc6b7b
4 changed files with 15 additions and 25 deletions
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5
include/net/sock.h
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@@ -2135,13 +2135,10 @@ static inline void sock_confirm_neigh(struct sk_buff *skb, struct neighbour *n)
{
if (skb_get_dst_pending_confirm(skb)) {
struct sock *sk = skb->sk;
unsigned long now = jiffies;
/* avoid dirtying neighbour */
if (READ_ONCE(n->confirmed) != now)
WRITE_ONCE(n->confirmed, now);
if (sk && READ_ONCE(sk->sk_dst_pending_confirm))
WRITE_ONCE(sk->sk_dst_pending_confirm, 0);
neigh_confirm(n);
}
}