net: add __rcu annotations to sk_wq and wq

Add proper RCU annotations/verbs to sk_wq and wq members

Fix __sctp_write_space() sk_sleep() abuse (and sock->wq access)

Fix sunrpc sk_sleep() abuse too

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

1 files changed, 2 insertions, 1 deletions

diff --git a/include/linux/net.h b/include/linux/net.h
index 16faa130088c..94de83c0f877 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -118,6 +118,7 @@ enum sock_shutdown_cmd {
 };
 
 struct socket_wq {
+        /* Note: wait MUST be first field of socket_wq */
         wait_queue_head_t       wait;
         struct fasync_struct    *fasync_list;
         struct rcu_head         rcu;
@@ -142,7 +143,7 @@ struct socket {
 
         unsigned long           flags;
 
-        struct socket_wq        *wq;
+        struct socket_wq __rcu  *wq;
 
         struct file             *file;
         struct sock             *sk;