From: Olaf Kirch <okir@suse.de>

I submitted this one previously - svc_tcp_recvfrom currently returns
any errors to the caller, including ECONNRESET and the like.

This is something svc_recv isn't able to deal with:

	len = svsk->sk_recvfrom(rqstp);
	[...]
	if (len == 0 || len == -EAGAIN) {
		[...]
		return -EAGAIN;
	}

	[...]
	return len;

The nfsd main loop will exit when it sees an error code other than
EAGAIN.

The following patch fixes this problem

svc_recv is not equipped to deal with error codes other than EAGAIN,
and will propagate anything else (such as ECONNRESET) up to nfsd,
causing it to exit.

Signed-off-by: Olaf Kirch <okir@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 net/sunrpc/svcsock.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN net/sunrpc/svcsock.c~keep-nfsd-from-exiting-when-seeing-recv-errors net/sunrpc/svcsock.c
--- devel/net/sunrpc/svcsock.c~keep-nfsd-from-exiting-when-seeing-recv-errors	2005-11-16 17:36:25.000000000 -0800
+++ devel-akpm/net/sunrpc/svcsock.c	2005-11-16 17:36:25.000000000 -0800
@@ -1026,7 +1026,7 @@ svc_tcp_recvfrom(struct svc_rqst *rqstp)
 	} else {
 		printk(KERN_NOTICE "%s: recvfrom returned errno %d\n",
 					svsk->sk_server->sv_name, -len);
-		svc_sock_received(svsk);
+		goto err_delete;
 	}
 
 	return len;
_