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Date: Mon, 23 Apr 2012 09:30:29 +0200 From: Eric Dumazet <eric.dumazet@...il.com> To: David Miller <davem@...emloft.net> Cc: netdev <netdev@...r.kernel.org> Subject: [PATCH 2/2 net-next] af_netlink: drop_monitor/dropwatch friendly From: Eric Dumazet <edumazet@...gle.com> Need to consume_skb() instead of kfree_skb() in netlink_dump() and netlink_unicast_kernel() to avoid false dropwatch positives. Signed-off-by: Eric Dumazet <edumazet@...gle.com> --- net/netlink/af_netlink.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 85d27f9..b3025a6 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -154,6 +154,12 @@ static void netlink_destroy_callback(struct netlink_callback *cb) kfree(cb); } +static void netlink_consume_callback(struct netlink_callback *cb) +{ + consume_skb(cb->skb); + kfree(cb); +} + static void netlink_sock_destruct(struct sock *sk) { struct netlink_sock *nlk = nlk_sk(sk); @@ -902,8 +908,10 @@ static int netlink_unicast_kernel(struct sock *sk, struct sk_buff *skb) ret = skb->len; skb_set_owner_r(skb, sk); nlk->netlink_rcv(skb); + consume_skb(skb); + } else { + kfree_skb(skb); } - kfree_skb(skb); sock_put(sk); return ret; } @@ -1728,7 +1736,7 @@ static int netlink_dump(struct sock *sk) nlk->cb = NULL; mutex_unlock(nlk->cb_mutex); - netlink_destroy_callback(cb); + netlink_consume_callback(cb); return 0; errout_skb: -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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