SUNRPC: Don't confuse ENOBUFS with a write_space issue

ENOBUFS means that memory allocations are failing due to an actual
low memory situation. It should not be confused with being out of
socket buffer space.

Handle the problem by just punting to the delay in call_status.

Reported-by: Neil Brown <neilb@suse.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index ee359fc7af16..44c1927b68c7 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -539,6 +539,7 @@ static int xs_local_send_request(struct rpc_task *task)
 
         switch (status) {
         case -ENOBUFS:
+                break;
         case -EAGAIN:
                 status = xs_nospace(task);
                 break;
@@ -692,7 +693,6 @@ static int xs_tcp_send_request(struct rpc_task *task)
                 status = -ENOTCONN;
                 /* Should we call xs_close() here? */
                 break;
-        case -ENOBUFS:
         case -EAGAIN:
                 status = xs_nospace(task);
                 break;
@@ -703,6 +703,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
         case -ECONNREFUSED:
         case -ENOTCONN:
         case -EADDRINUSE:
+        case -ENOBUFS:
         case -EPIPE:
                 clear_bit(SOCK_ASYNC_NOSPACE, &transport->sock->flags);
         }