From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Weimer Subject: Re: [PATCH 00/23] per device dirty throttling -v8 References: <20070803123712.987126000@chello.nl> <20070804063217.GA25069@elte.hu> <20070804070737.GA940@elte.hu> <20070804103347.GA1956@elte.hu> <20070804094119.81d8e533.akpm@linux-foundation.org> Date: Sat, 04 Aug 2007 21:16:35 +0200 In-Reply-To: <20070804094119.81d8e533.akpm@linux-foundation.org> (Andrew Morton's message of "Sat, 4 Aug 2007 09:41:19 -0700") Message-ID: <87wswbjejw.fsf@mid.deneb.enyo.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Linus Torvalds , Ingo Molnar , Peter Zijlstra , linux-mm@kvack.org, linux-kernel@vger.kernel.org, miklos@szeredi.hu, neilb@suse.de, dgc@sgi.com, tomoki.sekiyama.qu@hitachi.com, nikita@clusterfs.com, trond.myklebust@fys.uio.no, yingchao.zhou@gmail.com, richard@rsk.demon.co.uk List-ID: * Andrew Morton: > The easy preventive is to mount with data=writeback. Maybe that should > have been the default. The documentation I could find suggests that this may lead to a security weakness (old data in blocks of a file that was grown just before the crash leaks to a different user). XFS overwrites that data with zeros upon reboot, which tends to irritate users when it happens. >>From this point of view, data=ordered doesn't seem too bad. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org