Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752000Ab2JLU6L (ORCPT ); Fri, 12 Oct 2012 16:58:11 -0400 Received: from moutng.kundenserver.de ([212.227.126.186]:54521 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750954Ab2JLU6J (ORCPT ); Fri, 12 Oct 2012 16:58:09 -0400 From: Arnd Bergmann To: David Woodhouse Cc: =?utf-8?B?THVrw6HFoQ==?= Czerner , Jaegeuk Kim , "'Namjae Jeon'" , "'Vyacheslav Dubeyko'" , "'Marco Stornelli'" , "'Jaegeuk Kim'" , "'Al Viro'" , tytso@mit.edu, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, chur.lee@samsung.com, cm224.lee@samsung.com, jooyoung.hwang@samsung.com, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 00/16] f2fs: introduce flash-friendly file system Date: Fri, 12 Oct 2012 20:58 +0000 Message-ID: <2456603.OlK4shzgJ4@wuerfel> User-Agent: KMail/4.9 beta2 (Linux/3.5.0-7-generic; KDE/4.8.90; x86_64; ; ) In-Reply-To: <1349865374.6072.78.camel@shinybook.infradead.org> References: <415E76CC-A53D-4643-88AB-3D7D7DC56F98@dubeyko.com> <1349865374.6072.78.camel@shinybook.infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V02:K0:B2Tvl4Tw+3WhQtaDMP8146AdptMwssMXjdSaryNnvye HzIu2Yyu7GaqAdciBLJSPA9nxuLf3zvlTfowqDGyo7L3r+EF+O ttomiIUDTwaER8AtZ/FdTce2wOMO07NdevBS44uOg5JxB4metq 2w8RXXdgqAvC+iU+6Eu8SJbU97Y0+FhzG6IXpkiSYndstXWSZa Fb8rM8D+PibzMZphIN+rt+jSlM4j5b8rnUUvCMbt7vNX9NOF6J kwsV+6l0O65t5jQADtlTthExkBkARkY2WRmCqY+OFEj4PcNp4B qe88sZYgm4n1R3N4g5z4yxVvEEylaO+VOg0nNKxlA0/lVMGBzK wdZykxIbDX0KV9eeiswg= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 950 Lines: 20 On Wednesday 10 October 2012 11:36:14 David Woodhouse wrote: > The whole thing is silly. What we actually want on an embedded system is > to ditch the FTL altogether and have direct access to the NAND. Then we > can know our file system is behaving optimally. And we don't need > hacks like TRIM to try to make things a little less broken. I think it's safe to say that the times for raw flash in consumer devices are over, whether we like it or not. Even if we could go back to MTD for internal storage, we'd still need something better than what we have for removable flash storage such as USB and SD. (and I know that xD cards are basically raw flash, but have you tried to buy one recently?) Arnd -- 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/