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-rw-r--r--include/net/sock.h8
-rw-r--r--net/bluetooth/l2cap.c4
-rw-r--r--net/core/sock.c6
3 files changed, 12 insertions, 6 deletions
diff --git a/include/net/sock.h b/include/net/sock.h
index 9cdbae2a53a..35ffbdd35d3 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -745,7 +745,13 @@ static inline int sk_stream_wmem_schedule(struct sock *sk, int size)
*/
#define sock_owned_by_user(sk) ((sk)->sk_lock.owner)
-extern void FASTCALL(lock_sock(struct sock *sk));
+extern void FASTCALL(lock_sock_nested(struct sock *sk, int subclass));
+
+static inline void lock_sock(struct sock *sk)
+{
+ lock_sock_nested(sk, 0);
+}
+
extern void FASTCALL(release_sock(struct sock *sk));
/* BH context may only use the following locking interface. */
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index bbf78e6a7bc..29a8fa4d372 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -770,7 +770,7 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int fl
long timeo;
int err = 0;
- lock_sock(sk);
+ lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
if (sk->sk_state != BT_LISTEN) {
err = -EBADFD;
@@ -792,7 +792,7 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int fl
release_sock(sk);
timeo = schedule_timeout(timeo);
- lock_sock(sk);
+ lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
if (sk->sk_state != BT_LISTEN) {
err = -EBADFD;
diff --git a/net/core/sock.c b/net/core/sock.c
index ee6cd2541d3..32ff1c551d6 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1527,7 +1527,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
atomic_set(&sk->sk_refcnt, 1);
}
-void fastcall lock_sock(struct sock *sk)
+void fastcall lock_sock_nested(struct sock *sk, int subclass)
{
might_sleep();
spin_lock_bh(&sk->sk_lock.slock);
@@ -1538,11 +1538,11 @@ void fastcall lock_sock(struct sock *sk)
/*
* The sk_lock has mutex_lock() semantics here:
*/
- mutex_acquire(&sk->sk_lock.dep_map, 0, 0, _RET_IP_);
+ mutex_acquire(&sk->sk_lock.dep_map, subclass, 0, _RET_IP_);
local_bh_enable();
}
-EXPORT_SYMBOL(lock_sock);
+EXPORT_SYMBOL(lock_sock_nested);
void fastcall release_sock(struct sock *sk)
{