net: af_unix should update its inuse counter
This patch is a preparation to namespace conversion of /proc/net/protocols
In order to have relevant information for UNIX protocol, we should use
sock_prot_inuse_add() to update a (percpu and pernamespace) counter of
inuse sockets.
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index a1eb596..f2cf3f5 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -361,6 +361,7 @@
unix_release_addr(u->addr);
atomic_dec(&unix_nr_socks);
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
#ifdef UNIX_REFCNT_DEBUG
printk(KERN_DEBUG "UNIX %p is destroyed, %d are still alive.\n", sk,
atomic_read(&unix_nr_socks));
@@ -612,6 +613,9 @@
out:
if (sk == NULL)
atomic_dec(&unix_nr_socks);
+ else
+ sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+
return sk;
}