From mboxrd@z Thu Jan 1 00:00:00 1970 From: "J. R. Okajima" Subject: Re: Overlayfs reverse mapping Date: Sat, 22 Apr 2017 04:34:47 +0900 Message-ID: <7402.1492803287@jrobl> References: <5399.1492800261@jrobl> Return-path: Received: from mail05-md.ns.itscom.net ([175.177.155.115]:58256 "EHLO mail05-md.ns.itscom.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1425105AbdDUTez (ORCPT ); Fri, 21 Apr 2017 15:34:55 -0400 In-Reply-To: Sender: linux-unionfs-owner@vger.kernel.org List-Id: linux-unionfs@vger.kernel.org To: Amir Goldstein Cc: Miklos Szeredi , "linux-unionfs@vger.kernel.org" Amir Goldstein: > That would be names of files reserved for use by fs that user > cannot use (i.e. .wh. files). Miklos did not mean that aufs handles > lost+found, but that it lives without a problem with reserved filenames. Ah, reserving a filename prefix ".wh.". I see. Thanx for the explanation. By the way, putting extra things under lost+found is not a good idea I think. Have you ever tried restoring files manually from lost+found? When an administrator meets such case, he will digging lost+found and copy the files one by one with guessing the filenames. If he is not sure what the file is, then he may leave it under lost+found. For such case, the entries related to overlayfs will be left, and the administrator will spend some sleepless nights with thinking "What are these files? How can I restore them?" J. R. Okajima