diff options
Diffstat (limited to 'net/sunrpc')
| -rw-r--r-- | net/sunrpc/svcsock.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 8db8227e6c83..2864af3abdca 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -1089,6 +1089,9 @@ static void svc_tcp_fragment_received(struct svc_sock *svsk) /* If we have more data, signal svc_xprt_enqueue() to try again */ svsk->sk_tcplen = 0; svsk->sk_marker = xdr_zero; + + smp_wmb(); + tcp_set_rcvlowat(svsk->sk_sk, 1); } /** @@ -1178,10 +1181,17 @@ err_incomplete: goto err_delete; if (len == want) svc_tcp_fragment_received(svsk); - else + else { + /* Avoid more ->sk_data_ready() calls until the rest + * of the message has arrived. This reduces service + * thread wake-ups on large incoming messages. */ + tcp_set_rcvlowat(svsk->sk_sk, + svc_sock_reclen(svsk) - svsk->sk_tcplen); + trace_svcsock_tcp_recv_short(&svsk->sk_xprt, svc_sock_reclen(svsk), svsk->sk_tcplen - sizeof(rpc_fraghdr)); + } goto err_noclose; error: if (len != -EAGAIN) |