Subject: [PATCH] NFS: short write warning

 Recently a patch set was accepted to allow the Linux NFS client to handle
 short writes by retrying the unwritten portion of the request.  The only
 case that now results in an error is when the server makes no progress;
 that is, writes zero bytes.

 This patch changes the kernel log warning that is generated in that case
 to reflect the error condition more accurately.
Signed-off-by: Chuck Lever <cel@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>

fs/nfs/write.c

@@ -1197,7 +1197,8 @@ void nfs_writeback_done(struct rpc_task *task)
 		}
 		if (time_before(complain, jiffies)) {
 			printk(KERN_WARNING
-			       "NFS: Server wrote less than requested.\n");
+			       "NFS: Server wrote zero bytes, expected %u.\n",
+					argp->count);
 			complain = jiffies + 300 * HZ;
 		}
 		/* Can't do anything about it except throw an error. */