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>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/socket.c b/net/socket.c
index dd2c247c99e3..16be908205fc 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1072,11 +1072,11 @@ int sock_wake_async(struct socket *sock, int how, int band)
         }
         switch (how) {
         case SOCK_WAKE_WAITD:
-                if (test_bit(SOCK_ASYNC_WAITDATA, &sock->flags))
+                if (test_bit(SOCKWQ_ASYNC_WAITDATA, &sock->flags))
                         break;
                 goto call_kill;
         case SOCK_WAKE_SPACE:
-                if (!test_and_clear_bit(SOCK_ASYNC_NOSPACE, &sock->flags))
+                if (!test_and_clear_bit(SOCKWQ_ASYNC_NOSPACE, &sock->flags))
                         break;
                 /* fall through */
         case SOCK_WAKE_IO: