From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 5 Aug 2007 21:36:02 +0100 From: Christoph Hellwig Subject: Re: [PATCH 00/23] per device dirty throttling -v8 Message-ID: <20070805203602.GB25107@infradead.org> References: <20070804070737.GA940@elte.hu> <20070804103347.GA1956@elte.hu> <20070804163733.GA31001@elte.hu> <46B4C0A8.1000902@garzik.org> <20070804191205.GA24723@lazybastard.org> <20070804192130.GA25346@elte.hu> <20070804192615.GA25600@lazybastard.org> <20070804194259.GA25753@lazybastard.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20070804194259.GA25753@lazybastard.org> Sender: owner-linux-mm@kvack.org Return-Path: To: J??rn Engel Cc: Ingo Molnar , Jeff Garzik , Linus Torvalds , Peter Zijlstra , linux-mm@kvack.org, Linux Kernel Mailing List , miklos@szeredi.hu, akpm@linux-foundation.org, 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, david@lang.hm List-ID: On Sat, Aug 04, 2007 at 09:42:59PM +0200, J??rn Engel wrote: > On Sat, 4 August 2007 21:26:15 +0200, J??rn Engel wrote: > > > > Given the choice between only "atime" and "noatime" I'd agree with you. > > Heck, I use it myself. But "relatime" seems to combine the best of both > > worlds. It currently just suffers from mount not supporting it in any > > relevant distro. > > And here is a completely untested patch to enable it by default. Ingo, > can you see how good this fares compared to "atime" and > "noatime,nodiratime"? Umm, no f**king way. atime selection is 100% policy and belongs into userspace. Add to that the problem that we can't actually re-enable atimes because of the way the vfs-level mount flags API is designed. Instead of doing such a fugly kernel patch just talk to the handfull of distributions that matter to update their defaults. -- 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