SUNRPC: requeue tcp socket less frequently

Don't requeue the socket in some cases where we know it's unnecessary.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index b7d435c3f19e..7a3e4bfd895d 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -965,7 +965,6 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp)
                 goto err_again; /* record not complete */
         }
         len = svsk->sk_reclen;
-        set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
 
         return len;
  error:
@@ -1115,6 +1114,10 @@ out:
         /* Reset TCP read info */
         svsk->sk_reclen = 0;
         svsk->sk_tcplen = 0;
+        /* If we have more data, signal svc_xprt_enqueue() to try again */
+        if (svc_recv_available(svsk) > sizeof(rpc_fraghdr))
+                set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
+
 
         svc_xprt_copy_addrs(rqstp, &svsk->sk_xprt);
         if (serv->sv_stats)