SUNRPC: Ensure that we read all available tcp data

Don't stop until we run out of data, or we hit an error.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 30e7ac2..8bd3b0f 100644 (file)
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1073,6 +1073,7 @@ static void xs_tcp_data_ready(struct sock *sk, int bytes)
 {
        struct rpc_xprt *xprt;
        read_descriptor_t rd_desc;
+       int read;
 
        dprintk("RPC:       xs_tcp_data_ready...\n");
 
@@ -1084,8 +1085,10 @@ static void xs_tcp_data_ready(struct sock *sk, int bytes)
 
        /* We use rd_desc to pass struct xprt to xs_tcp_data_recv */
        rd_desc.arg.data = xprt;
-       rd_desc.count = 65536;
-       tcp_read_sock(sk, &rd_desc, xs_tcp_data_recv);
+       do {
+               rd_desc.count = 65536;
+               read = tcp_read_sock(sk, &rd_desc, xs_tcp_data_recv);
+       } while (read > 0);
 out:
        read_unlock(&sk->sk_callback_lock);
 }