net: rename SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
This patch is a cleanup to make following patch easier to
review.
Goal is to move SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
from (struct socket)->flags to a (struct socket_wq)->flags
to benefit from RCU protection in sock_wake_async()
To ease backports, we rename both constants.
Two new helpers, sk_set_bit(int nr, struct sock *sk)
and sk_clear_bit(int net, struct sock *sk) are added so that
following patch can change their implementation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/sock.h b/include/net/sock.h
index 7f89e4b..c155d09 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2005,6 +2005,16 @@
return amt;
}
+static inline void sk_set_bit(int nr, struct sock *sk)
+{
+ set_bit(nr, &sk->sk_socket->flags);
+}
+
+static inline void sk_clear_bit(int nr, struct sock *sk)
+{
+ clear_bit(nr, &sk->sk_socket->flags);
+}
+
static inline void sk_wake_async(struct sock *sk, int how, int band)
{
if (sock_flag(sk, SOCK_FASYNC))