SUNRPC: Don't reencode message if transmission failed with ENOBUFS

If we're running out of buffer memory when transmitting data, then
we want to just delay for a moment, and then continue transmitting
the remainder of the message.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index cbc6af923dd1cb0baabc95161989133150269d4f..23608eb0ded2c94e363ed06e35384b08417e04ed 100644 (file)
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1902,6 +1902,7 @@ call_transmit_status(struct rpc_task *task)
 
        switch (task->tk_status) {
        case -EAGAIN:
+       case -ENOBUFS:
                break;
        default:
                dprint_status(task);
@@ -1928,7 +1929,6 @@ call_transmit_status(struct rpc_task *task)
        case -ECONNABORTED:
        case -EADDRINUSE:
        case -ENOTCONN:
-       case -ENOBUFS:
        case -EPIPE:
                rpc_task_force_reencode(task);
        }
@@ -2057,12 +2057,13 @@ call_status(struct rpc_task *task)
        case -ECONNABORTED:
                rpc_force_rebind(clnt);
        case -EADDRINUSE:
-       case -ENOBUFS:
                rpc_delay(task, 3*HZ);
        case -EPIPE:
        case -ENOTCONN:
                task->tk_action = call_bind;
                break;
+       case -ENOBUFS:
+               rpc_delay(task, HZ>>2);
        case -EAGAIN:
                task->tk_action = call_transmit;
                break;