svcrpc: make xpo_recvfrom return only >=0
The only errors returned from xpo_recvfrom have been -EAGAIN and
-EAFNOSUPPORT. The latter was removed by a previous patch. That leaves
only -EAGAIN, which is treated just like 0 by the caller (svc_recv).
So, just ditch -EAGAIN and return 0 instead.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index ee15663..3e31730 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -743,7 +743,7 @@
svc_xprt_received(xprt);
/* No data, incomplete (TCP) read, or accept() */
- if (len == 0 || len == -EAGAIN)
+ if (len <= 0)
goto out;
clear_bit(XPT_OLD, &xprt->xpt_flags);
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 406688b..7aee54c 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -598,7 +598,7 @@
dprintk("svc: recvfrom returned error %d\n", -err);
set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
}
- return -EAGAIN;
+ return 0;
}
len = svc_addr_len(svc_addr(rqstp));
rqstp->rq_addrlen = len;
@@ -1174,13 +1174,13 @@
if (len != -EAGAIN)
goto err_other;
dprintk("RPC: TCP recvfrom got EAGAIN\n");
- return -EAGAIN;
+ return 0;
err_other:
printk(KERN_NOTICE "%s: recvfrom returned errno %d\n",
svsk->sk_xprt.xpt_server->sv_name, -len);
set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags);
err_noclose:
- return -EAGAIN; /* record not complete */
+ return 0; /* record not complete */
}
/*
