[SOCK][NETNS]: Add a struct net argument to sock_prot_inuse_add and _get.

This counter is about to become per-proto-and-per-net, so we'll need
two arguments to determine which cell in this "table" to work with.

All the places, but proc already pass proper net to it - proc will be
tuned a bit later.

Some indentation with spaces in proc files is done to keep the file
coding style consistent.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/sock.h b/include/net/sock.h
index 2a3344f..f4fdd10 100644 (file)
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -635,10 +635,11 @@ static inline void sk_refcnt_debug_release(const struct sock *sk)
 
 #ifdef CONFIG_PROC_FS
 /* Called with local bh disabled */
-extern void sock_prot_inuse_add(struct proto *prot, int inc);
-extern int sock_prot_inuse_get(struct proto *proto);
+extern void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc);
+extern int sock_prot_inuse_get(struct net *net, struct proto *proto);
 #else
-static void inline sock_prot_inuse_add(struct proto *prot, int inc)
+static void inline sock_prot_inuse_add(struct net *net, struct proto *prot,
+               int inc)
 {
 }
 #endif

diff --git a/include/net/udp.h b/include/net/udp.h
index 24a41fa..3e55a99 100644 (file)
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -115,7 +115,7 @@ static inline void udp_lib_unhash(struct sock *sk)
        write_lock_bh(&udp_hash_lock);
        if (sk_del_node_init(sk)) {
                inet_sk(sk)->num = 0;
-               sock_prot_inuse_add(sk->sk_prot, -1);
+               sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
        }
        write_unlock_bh(&udp_hash_lock);
 }

diff --git a/net/core/sock.c b/net/core/sock.c
index c1ae56e..6f36ab9 100644 (file)
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1949,13 +1949,13 @@ struct prot_inuse {
 static DECLARE_BITMAP(proto_inuse_idx, PROTO_INUSE_NR);
 static DEFINE_PER_CPU(struct prot_inuse, prot_inuse);
 
-void sock_prot_inuse_add(struct proto *prot, int val)
+void sock_prot_inuse_add(struct net *net, struct proto *prot, int val)
 {
        __get_cpu_var(prot_inuse).val[prot->inuse_idx] += val;
 }
 EXPORT_SYMBOL_GPL(sock_prot_inuse_add);
 
-int sock_prot_inuse_get(struct proto *prot)
+int sock_prot_inuse_get(struct net *net, struct proto *prot)
 {
        int cpu, idx = prot->inuse_idx;
        int res = 0;

diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 1b6ff51..32ca2f8 100644 (file)
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -288,7 +288,7 @@ unique:
        sk->sk_hash = hash;
        BUG_TRAP(sk_unhashed(sk));
        __sk_add_node(sk, &head->chain);
-       sock_prot_inuse_add(sk->sk_prot, 1);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        write_unlock(lock);
 
        if (twp) {
@@ -332,7 +332,7 @@ void __inet_hash_nolisten(struct sock *sk)
 
        write_lock(lock);
        __sk_add_node(sk, list);
-       sock_prot_inuse_add(sk->sk_prot, 1);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        write_unlock(lock);
 }
 EXPORT_SYMBOL_GPL(__inet_hash_nolisten);
@@ -354,7 +354,7 @@ static void __inet_hash(struct sock *sk)
 
        inet_listen_wlock(hashinfo);
        __sk_add_node(sk, list);
-       sock_prot_inuse_add(sk->sk_prot, 1);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        write_unlock(lock);
        wake_up(&hashinfo->lhash_wait);
 }
@@ -387,7 +387,7 @@ void inet_unhash(struct sock *sk)
        }
 
        if (__sk_del_node_init(sk))
-               sock_prot_inuse_add(sk->sk_prot, -1);
+               sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
        write_unlock_bh(lock);
 out:
        if (sk->sk_state == TCP_LISTEN)

diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index f12bc24..a741378 100644 (file)
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -91,7 +91,7 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
 
        /* Step 2: Remove SK from established hash. */
        if (__sk_del_node_init(sk))
-               sock_prot_inuse_add(sk->sk_prot, -1);
+               sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 
        /* Step 3: Hash TW into TIMEWAIT chain. */
        inet_twsk_add_node(tw, &ehead->twchain);

diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index d63474c..8156c26 100644 (file)
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -53,14 +53,17 @@ static int sockstat_seq_show(struct seq_file *seq, void *v)
 {
        socket_seq_show(seq);
        seq_printf(seq, "TCP: inuse %d orphan %d tw %d alloc %d mem %d\n",
-                  sock_prot_inuse_get(&tcp_prot),
+                  sock_prot_inuse_get(&init_net, &tcp_prot),
                   atomic_read(&tcp_orphan_count),
                   tcp_death_row.tw_count, atomic_read(&tcp_sockets_allocated),
                   atomic_read(&tcp_memory_allocated));
-       seq_printf(seq, "UDP: inuse %d mem %d\n", sock_prot_inuse_get(&udp_prot),
+       seq_printf(seq, "UDP: inuse %d mem %d\n",
+                  sock_prot_inuse_get(&init_net, &udp_prot),
                   atomic_read(&udp_memory_allocated));
-       seq_printf(seq, "UDPLITE: inuse %d\n", sock_prot_inuse_get(&udplite_prot));
-       seq_printf(seq, "RAW: inuse %d\n", sock_prot_inuse_get(&raw_prot));
+       seq_printf(seq, "UDPLITE: inuse %d\n",
+                  sock_prot_inuse_get(&init_net, &udplite_prot));
+       seq_printf(seq, "RAW: inuse %d\n",
+                  sock_prot_inuse_get(&init_net, &raw_prot));
        seq_printf(seq,  "FRAG: inuse %d memory %d\n",
                        ip_frag_nqueues(&init_net), ip_frag_mem(&init_net));
        return 0;

diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 3492050..11d7f75 100644 (file)
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -93,7 +93,7 @@ void raw_hash_sk(struct sock *sk)
 
        write_lock_bh(&h->lock);
        sk_add_node(sk, head);
-       sock_prot_inuse_add(sk->sk_prot, 1);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        write_unlock_bh(&h->lock);
 }
 EXPORT_SYMBOL_GPL(raw_hash_sk);
@@ -104,7 +104,7 @@ void raw_unhash_sk(struct sock *sk)
 
        write_lock_bh(&h->lock);
        if (sk_del_node_init(sk))
-               sock_prot_inuse_add(sk->sk_prot, -1);
+               sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
        write_unlock_bh(&h->lock);
 }
 EXPORT_SYMBOL_GPL(raw_unhash_sk);

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 9143645..03bd706 100644 (file)
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -231,7 +231,7 @@ gotit:
        if (sk_unhashed(sk)) {
                head = &udptable[snum & (UDP_HTABLE_SIZE - 1)];
                sk_add_node(sk, head);
-               sock_prot_inuse_add(sk->sk_prot, 1);
+               sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        }
        error = 0;
 fail:

diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 340c7d4..580014a 100644 (file)
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -43,7 +43,7 @@ void __inet6_hash(struct sock *sk)
        }
 
        __sk_add_node(sk, list);
-       sock_prot_inuse_add(sk->sk_prot, 1);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        write_unlock(lock);
 }
 EXPORT_SYMBOL(__inet6_hash);
@@ -204,7 +204,7 @@ unique:
        BUG_TRAP(sk_unhashed(sk));
        __sk_add_node(sk, &head->chain);
        sk->sk_hash = hash;
-       sock_prot_inuse_add(sk->sk_prot, 1);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
        write_unlock(lock);
 
        if (twp != NULL) {

diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d3d93d7..4195ac9 100644 (file)
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -155,10 +155,11 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 
                        if (sk->sk_protocol == IPPROTO_TCP) {
                                struct inet_connection_sock *icsk = inet_csk(sk);
+                               struct net *net = sock_net(sk);
 
                                local_bh_disable();
-                               sock_prot_inuse_add(sk->sk_prot, -1);
-                               sock_prot_inuse_add(&tcp_prot, 1);
+                               sock_prot_inuse_add(net, sk->sk_prot, -1);
+                               sock_prot_inuse_add(net, &tcp_prot, 1);
                                local_bh_enable();
                                sk->sk_prot = &tcp_prot;
                                icsk->icsk_af_ops = &ipv4_specific;
@@ -167,12 +168,13 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
                                tcp_sync_mss(sk, icsk->icsk_pmtu_cookie);
                        } else {
                                struct proto *prot = &udp_prot;
+                               struct net *net = sock_net(sk);
 
                                if (sk->sk_protocol == IPPROTO_UDPLITE)
                                        prot = &udplite_prot;
                                local_bh_disable();
-                               sock_prot_inuse_add(sk->sk_prot, -1);
-                               sock_prot_inuse_add(prot, 1);
+                               sock_prot_inuse_add(net, sk->sk_prot, -1);
+                               sock_prot_inuse_add(net, prot, 1);
                                local_bh_enable();
                                sk->sk_prot = prot;
                                sk->sk_socket->ops = &inet_dgram_ops;

diff --git a/net/ipv6/proc.c b/net/ipv6/proc.c
index 364dc33..4b9d5a9 100644 (file)
--- a/net/ipv6/proc.c
+++ b/net/ipv6/proc.c
@@ -36,13 +36,13 @@ static struct proc_dir_entry *proc_net_devsnmp6;
 static int sockstat6_seq_show(struct seq_file *seq, void *v)
 {
        seq_printf(seq, "TCP6: inuse %d\n",
-                      sock_prot_inuse_get(&tcpv6_prot));
+                      sock_prot_inuse_get(&init_net, &tcpv6_prot));
        seq_printf(seq, "UDP6: inuse %d\n",
-                      sock_prot_inuse_get(&udpv6_prot));
+                      sock_prot_inuse_get(&init_net, &udpv6_prot));
        seq_printf(seq, "UDPLITE6: inuse %d\n",
-                       sock_prot_inuse_get(&udplitev6_prot));
+                       sock_prot_inuse_get(&init_net, &udplitev6_prot));
        seq_printf(seq, "RAW6: inuse %d\n",
-                      sock_prot_inuse_get(&rawv6_prot));
+                      sock_prot_inuse_get(&init_net, &rawv6_prot));
        seq_printf(seq, "FRAG6: inuse %d memory %d\n",
                       ip6_frag_nqueues(&init_net), ip6_frag_mem(&init_net));
        return 0;