Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755244Ab1FITk2 (ORCPT ); Thu, 9 Jun 2011 15:40:28 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:35507 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754559Ab1FITkY (ORCPT ); Thu, 9 Jun 2011 15:40:24 -0400 MIME-Version: 1.0 In-Reply-To: <20110609123220.6afb9d0f.akpm@linux-foundation.org> References: <1306932380-10280-1-git-send-email-miklos@szeredi.hu> <20110608153208.dc705cda.akpm@linux-foundation.org> <20110609115934.3c53f78f@notabene.brown> <20110608205233.ebfedc4d.akpm@linux-foundation.org> <20110609134947.GD13242@shadowen.org> <20110609123220.6afb9d0f.akpm@linux-foundation.org> From: Linus Torvalds Date: Thu, 9 Jun 2011 12:40:01 -0700 Message-ID: Subject: Re: [PATCH 0/7] overlay filesystem: request for inclusion To: Andrew Morton Cc: Andy Whitcroft , NeilBrown , Miklos Szeredi , viro@zeniv.linux.org.uk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, nbd@openwrt.org, hramrach@centrum.cz, jordipujolp@gmail.com, ezk@fsl.cs.sunysb.edu, mszeredi@suse.cz Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1176 Lines: 31 On Thu, Jun 9, 2011 at 12:32 PM, Andrew Morton wrote: > > If the implementation is slow or buggy then the appropriate action is > to speed it up and to fix the bugs, so these are just non-arguments, > IMO. Umm. "userspace filesystem"? The problem is right there. Always has been. People who think that userspace filesystems are realistic for anything but toys are just misguided. fuse works fine if the thing being exported is some random low-use interface to a fundamentally slow device. But for something like your root filesystem? Nope. Not going to happen. So Andrew, I think that arguing that something _can_ be done with fuse, and thus _should_ be done with fuse is just ridiculous. That's like saying you should do a microkernel - it may sound nice on paper, but it's a damn stupid idea for people who care more about some idea than they care about reality. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/