Merge branch 'akpm' (Andrew's patch-bomb)

[pandora-kernel.git] / net / sunrpc / xprtsock.c

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 62d0dac..4005672 100644 (file)
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1892,6 +1892,8 @@ static void xs_local_setup_socket(struct work_struct *work)
        if (xprt->shutdown)
                goto out;
 
+       current->flags |= PF_FSTRANS;
+
        clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
        status = __sock_create(xprt->xprt_net, AF_LOCAL,
                                        SOCK_STREAM, 0, &sock, 1);
@@ -1925,7 +1927,47 @@ static void xs_local_setup_socket(struct work_struct *work)
 out:
        xprt_clear_connecting(xprt);
        xprt_wake_pending_tasks(xprt, status);
+       current->flags &= ~PF_FSTRANS;
+}
+
+#ifdef CONFIG_SUNRPC_SWAP
+static void xs_set_memalloc(struct rpc_xprt *xprt)
+{
+       struct sock_xprt *transport = container_of(xprt, struct sock_xprt,
+                       xprt);
+
+       if (xprt->swapper)
+               sk_set_memalloc(transport->inet);
+}
+
+/**
+ * xs_swapper - Tag this transport as being used for swap.
+ * @xprt: transport to tag
+ * @enable: enable/disable
+ *
+ */
+int xs_swapper(struct rpc_xprt *xprt, int enable)
+{
+       struct sock_xprt *transport = container_of(xprt, struct sock_xprt,
+                       xprt);
+       int err = 0;
+
+       if (enable) {
+               xprt->swapper++;
+               xs_set_memalloc(xprt);
+       } else if (xprt->swapper) {
+               xprt->swapper--;
+               sk_clear_memalloc(transport->inet);
+       }
+
+       return err;
+}
+EXPORT_SYMBOL_GPL(xs_swapper);
+#else
+static void xs_set_memalloc(struct rpc_xprt *xprt)
+{
 }
+#endif
 
 static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 {
@@ -1951,6 +1993,8 @@ static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
                transport->sock = sock;
                transport->inet = sk;
 
+               xs_set_memalloc(xprt);
+
                write_unlock_bh(&sk->sk_callback_lock);
        }
        xs_udp_do_set_buffer_size(xprt);
@@ -1967,6 +2011,8 @@ static void xs_udp_setup_socket(struct work_struct *work)
        if (xprt->shutdown)
                goto out;
 
+       current->flags |= PF_FSTRANS;
+
        /* Start by resetting any existing state */
        xs_reset_transport(transport);
        sock = xs_create_sock(xprt, transport,
@@ -1985,6 +2031,7 @@ static void xs_udp_setup_socket(struct work_struct *work)
 out:
        xprt_clear_connecting(xprt);
        xprt_wake_pending_tasks(xprt, status);
+       current->flags &= ~PF_FSTRANS;
 }
 
 /*
@@ -2075,6 +2122,8 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
        if (!xprt_bound(xprt))
                goto out;
 
+       xs_set_memalloc(xprt);
+
        /* Tell the socket layer to start connecting... */
        xprt->stat.connect_count++;
        xprt->stat.connect_start = jiffies;
@@ -2110,6 +2159,8 @@ static void xs_tcp_setup_socket(struct work_struct *work)
        if (xprt->shutdown)
                goto out;
 
+       current->flags |= PF_FSTRANS;
+
        if (!sock) {
                clear_bit(XPRT_CONNECTION_ABORT, &xprt->state);
                sock = xs_create_sock(xprt, transport,
@@ -2159,6 +2210,7 @@ static void xs_tcp_setup_socket(struct work_struct *work)
        case -EINPROGRESS:
        case -EALREADY:
                xprt_clear_connecting(xprt);
+               current->flags &= ~PF_FSTRANS;
                return;
        case -EINVAL:
                /* Happens, for instance, if the user specified a link
@@ -2171,6 +2223,7 @@ out_eagain:
 out:
        xprt_clear_connecting(xprt);
        xprt_wake_pending_tasks(xprt, status);
+       current->flags &= ~PF_FSTRANS;
 }
 
 /**