Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753224AbYK1NlY (ORCPT ); Fri, 28 Nov 2008 08:41:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751254AbYK1NlN (ORCPT ); Fri, 28 Nov 2008 08:41:13 -0500 Received: from palinux.external.hp.com ([192.25.206.14]:59970 "EHLO mail.parisc-linux.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750894AbYK1NlM (ORCPT ); Fri, 28 Nov 2008 08:41:12 -0500 Date: Fri, 28 Nov 2008 06:40:55 -0700 From: Matthew Wilcox To: Jamie Lokier Cc: Matthew Garrett , Christoph Hellwig , Alan Cox , Randy Dunlap , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, mingo@redhat.com, val.henson@gmail.com Subject: Re: [PATCH v4] relatime: Make relatime smarter Message-ID: <20081128134055.GQ25548@parisc-linux.org> References: <20081126195824.GB3541@srcf.ucam.org> <492DD035.5020705@oracle.com> <20081127150126.GA20941@srcf.ucam.org> <20081127150341.GB20941@srcf.ucam.org> <20081127163535.775729bf@lxorguk.ukuu.org.uk> <20081127164754.GC22963@srcf.ucam.org> <20081127165929.GA23366@srcf.ucam.org> <20081127170615.GB14991@infradead.org> <20081127175813.GA24354@srcf.ucam.org> <20081128111809.GH6138@shareable.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20081128111809.GH6138@shareable.org> User-Agent: Mutt/1.5.13 (2006-08-11) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 963 Lines: 21 On Fri, Nov 28, 2008 at 11:18:09AM +0000, Jamie Lokier wrote: > Matthew Garrett wrote: > > The time between atime updates can be configured at boot > > with the relatime_interval kernel argument, or at runtime through a sysctl. > > Shouldn't it be a per-mount value, with defaults coming from the sysctl? Perhaps a more sensible question would be "Why make it configurable at all?" What's wrong with hardcoding 24 hours? Or, to put it another way, who wants to change it from 24 hours, and why? -- Matthew Wilcox Intel Open Source Technology Centre "Bill, look, we understand that you're interested in selling us this operating system, but compare it to ours. We can't possibly take such a retrograde step." -- 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/