Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[firefly-linux-kernel-4.4.55.git] / net / sunrpc / svcsock.c

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 305374d4fb985ec4942040447f91e8d8277ea10d..9c9caaa5e0d3129f8872350ded706321fb2509c2 100644 (file)
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -442,7 +442,7 @@ static void svc_tcp_write_space(struct sock *sk)
 {
        struct socket *sock = sk->sk_socket;
 
-       if (sk_stream_wspace(sk) >= sk_stream_min_wspace(sk) && sock)
+       if (sk_stream_is_writeable(sk) && sock)
                clear_bit(SOCK_NOSPACE, &sock->flags);
        svc_write_space(sk);
 }
@@ -1193,7 +1193,9 @@ static int svc_tcp_has_wspace(struct svc_xprt *xprt)
        if (test_bit(XPT_LISTENER, &xprt->xpt_flags))
                return 1;
        required = atomic_read(&xprt->xpt_reserved) + serv->sv_max_mesg;
-       if (sk_stream_wspace(svsk->sk_sk) >= required)
+       if (sk_stream_wspace(svsk->sk_sk) >= required ||
+           (sk_stream_min_wspace(svsk->sk_sk) == 0 &&
+            atomic_read(&xprt->xpt_reserved) == 0))
                return 1;
        set_bit(SOCK_NOSPACE, &svsk->sk_sock->flags);
        return 0;