net: sk_sleep() helper

Define a new function to return the waitqueue of a "struct sock".

static inline wait_queue_head_t *sk_sleep(struct sock *sk)
{
	return sk->sk_sleep;
}

Change all read occurrences of sk_sleep by a call to this function.

Needed for a future RCU conversion. sk_sleep wont be a field directly
available.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

10 files changed, 28 insertions, 28 deletions

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 404a8500fd03..421c45bd1b95 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -288,7 +288,7 @@ unsigned int bt_sock_poll(struct file * file, struct socket *sock, poll_table *w
 
         BT_DBG("sock %p, sk %p", sock, sk);
 
-        poll_wait(file, sk->sk_sleep, wait);
+        poll_wait(file, sk_sleep(sk), wait);
 
         if (sk->sk_state == BT_LISTEN)
                 return bt_accept_poll(sk);
@@ -378,7 +378,7 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
 
         BT_DBG("sk %p", sk);
 
-        add_wait_queue(sk->sk_sleep, &wait);
+        add_wait_queue(sk_sleep(sk), &wait);
         while (sk->sk_state != state) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -401,7 +401,7 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
                         break;
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
         return err;
 }
 EXPORT_SYMBOL(bt_sock_wait_state);
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 8062dad6d10d..f10b41fb05a0 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -474,7 +474,7 @@ static int bnep_session(void *arg)
         set_user_nice(current, -15);
 
         init_waitqueue_entry(&wait, current);
-        add_wait_queue(sk->sk_sleep, &wait);
+        add_wait_queue(sk_sleep(sk), &wait);
         while (!atomic_read(&s->killed)) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -496,7 +496,7 @@ static int bnep_session(void *arg)
                 schedule();
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         /* Cleanup session */
         down_write(&bnep_session_sem);
@@ -507,7 +507,7 @@ static int bnep_session(void *arg)
         /* Wakeup user-space polling for socket errors */
         s->sock->sk->sk_err = EUNATCH;
 
-        wake_up_interruptible(s->sock->sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(s->sock->sk));
 
         /* Release the socket */
         fput(s->sock->file);
@@ -638,7 +638,7 @@ int bnep_del_connection(struct bnep_conndel_req *req)
 
                 /* Kill session thread */
                 atomic_inc(&s->killed);
-                wake_up_interruptible(s->sock->sk->sk_sleep);
+                wake_up_interruptible(sk_sleep(s->sock->sk));
         } else
                 err = -ENOENT;
 
diff --git a/net/bluetooth/bnep/netdev.c b/net/bluetooth/bnep/netdev.c
index d48b33f4d4ba..0faad5ce6dc4 100644
--- a/net/bluetooth/bnep/netdev.c
+++ b/net/bluetooth/bnep/netdev.c
@@ -109,7 +109,7 @@ static void bnep_net_set_mc_list(struct net_device *dev)
         }
 
         skb_queue_tail(&sk->sk_write_queue, skb);
-        wake_up_interruptible(sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(sk));
 #endif
 }
 
@@ -193,11 +193,11 @@ static netdev_tx_t bnep_net_xmit(struct sk_buff *skb,
         /*
          * We cannot send L2CAP packets from here as we are potentially in a bh.
          * So we have to queue them and wake up session thread which is sleeping
-         * on the sk->sk_sleep.
+         * on the sk_sleep(sk).
          */
         dev->trans_start = jiffies;
         skb_queue_tail(&sk->sk_write_queue, skb);
-        wake_up_interruptible(sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(sk));
 
         if (skb_queue_len(&sk->sk_write_queue) >= BNEP_TX_QUEUE_LEN) {
                 BT_DBG("tx queue is full");
diff --git a/net/bluetooth/cmtp/cmtp.h b/net/bluetooth/cmtp/cmtp.h
index e4663aa14d26..785e79e953c5 100644
--- a/net/bluetooth/cmtp/cmtp.h
+++ b/net/bluetooth/cmtp/cmtp.h
@@ -125,7 +125,7 @@ static inline void cmtp_schedule(struct cmtp_session *session)
 {
         struct sock *sk = session->sock->sk;
 
-        wake_up_interruptible(sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(sk));
 }
 
 /* CMTP init defines */
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index 0073ec8495da..d4c6af082d48 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -284,7 +284,7 @@ static int cmtp_session(void *arg)
         set_user_nice(current, -15);
 
         init_waitqueue_entry(&wait, current);
-        add_wait_queue(sk->sk_sleep, &wait);
+        add_wait_queue(sk_sleep(sk), &wait);
         while (!atomic_read(&session->terminate)) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -301,7 +301,7 @@ static int cmtp_session(void *arg)
                 schedule();
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         down_write(&cmtp_session_sem);
 
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 280529ad9274..bfe641b7dfaf 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -561,8 +561,8 @@ static int hidp_session(void *arg)
 
         init_waitqueue_entry(&ctrl_wait, current);
         init_waitqueue_entry(&intr_wait, current);
-        add_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
-        add_wait_queue(intr_sk->sk_sleep, &intr_wait);
+        add_wait_queue(sk_sleep(ctrl_sk), &ctrl_wait);
+        add_wait_queue(sk_sleep(intr_sk), &intr_wait);
         while (!atomic_read(&session->terminate)) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -584,8 +584,8 @@ static int hidp_session(void *arg)
                 schedule();
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(intr_sk->sk_sleep, &intr_wait);
-        remove_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
+        remove_wait_queue(sk_sleep(intr_sk), &intr_wait);
+        remove_wait_queue(sk_sleep(ctrl_sk), &ctrl_wait);
 
         down_write(&hidp_session_sem);
 
@@ -609,7 +609,7 @@ static int hidp_session(void *arg)
 
         fput(session->intr_sock->file);
 
-        wait_event_timeout(*(ctrl_sk->sk_sleep),
+        wait_event_timeout(*(sk_sleep(ctrl_sk)),
                 (ctrl_sk->sk_state == BT_CLOSED), msecs_to_jiffies(500));
 
         fput(session->ctrl_sock->file);
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
index a4e215d50c10..8d934a19da0a 100644
--- a/net/bluetooth/hidp/hidp.h
+++ b/net/bluetooth/hidp/hidp.h
@@ -164,8 +164,8 @@ static inline void hidp_schedule(struct hidp_session *session)
         struct sock *ctrl_sk = session->ctrl_sock->sk;
         struct sock *intr_sk = session->intr_sock->sk;
 
-        wake_up_interruptible(ctrl_sk->sk_sleep);
-        wake_up_interruptible(intr_sk->sk_sleep);
+        wake_up_interruptible(sk_sleep(ctrl_sk));
+        wake_up_interruptible(sk_sleep(intr_sk));
 }
 
 /* HIDP init defines */
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 99d68c34e4f1..c1e60eed5a97 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -1147,7 +1147,7 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int fl
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         while (!(nsk = bt_accept_dequeue(sk, newsock))) {
                 set_current_state(TASK_INTERRUPTIBLE);
                 if (!timeo) {
@@ -1170,7 +1170,7 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock, int fl
                 }
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
                 goto done;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 8ed3c37684fa..43fbf6b4b4bf 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -503,7 +503,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         while (!(nsk = bt_accept_dequeue(sk, newsock))) {
                 set_current_state(TASK_INTERRUPTIBLE);
                 if (!timeo) {
@@ -526,7 +526,7 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
                 }
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
                 goto done;
@@ -621,7 +621,7 @@ static long rfcomm_sock_data_wait(struct sock *sk, long timeo)
 {
         DECLARE_WAITQUEUE(wait, current);
 
-        add_wait_queue(sk->sk_sleep, &wait);
+        add_wait_queue(sk_sleep(sk), &wait);
         for (;;) {
                 set_current_state(TASK_INTERRUPTIBLE);
 
@@ -640,7 +640,7 @@ static long rfcomm_sock_data_wait(struct sock *sk, long timeo)
         }
 
         __set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
         return timeo;
 }
 
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index ca6b2ad1c3fc..b406d3eff53a 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -567,7 +567,7 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flag
         BT_DBG("sk %p timeo %ld", sk, timeo);
 
         /* Wait for an incoming connection. (wake-one). */
-        add_wait_queue_exclusive(sk->sk_sleep, &wait);
+        add_wait_queue_exclusive(sk_sleep(sk), &wait);
         while (!(ch = bt_accept_dequeue(sk, newsock))) {
                 set_current_state(TASK_INTERRUPTIBLE);
                 if (!timeo) {
@@ -590,7 +590,7 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock, int flag
                 }
         }
         set_current_state(TASK_RUNNING);
-        remove_wait_queue(sk->sk_sleep, &wait);
+        remove_wait_queue(sk_sleep(sk), &wait);
 
         if (err)
                 goto done;