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net: af_netlink should update its inuse counter

PATCH Applied Eric Dumazet 2 participants 2 messages Nov 22, 2008 – Nov 23, 2008

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#0 lore raw

PATCH 1/1 net: af_netlink should update its inuse counter

In order to have relevant information for NETLINK protocol, in /proc/net/protocols, we should use sock_prot_inuse_add() to update a (percpu and pernamespace) counter of inuse sockets.

net/netlink/af_netlink.c +2 -0
index 480184a..a2071dc 100644
@@ -452,6 +452,7 @@ static int netlink_create(struct net *net, struct socket *sock, int protocol)
 	if (err < 0)
 		goto out_module;
 
+	sock_prot_inuse_add(net, &netlink_proto, 1);
 	nlk = nlk_sk(sock->sk);
 	nlk->module = module;
 out:
@@ -511,6 +512,7 @@ static int netlink_release(struct socket *sock)
 	kfree(nlk->groups);
 	nlk->groups = NULL;
 
+	sock_prot_inuse_add(sock_net(sk), &netlink_proto, -1);
 	sock_put(sk);
 	return 0;
 }
maintainer Applied
#1 lore raw

From: Eric Dumazet <[email protected]>
Date: Sat, 22 Nov 2008 09:40:10 +0100

Quoted 5 lines

In order to have relevant information for NETLINK protocol, in /proc/net/protocols, we should use sock_prot_inuse_add() to update a (percpu and pernamespace) counter of inuse sockets.

Applied to net-next-2.6, thanks.