Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757098AbZCYX0S (ORCPT ); Wed, 25 Mar 2009 19:26:18 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753173AbZCYX0E (ORCPT ); Wed, 25 Mar 2009 19:26:04 -0400 Received: from smtp1.linux-foundation.org ([140.211.169.13]:59755 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752991AbZCYX0C (ORCPT ); Wed, 25 Mar 2009 19:26:02 -0400 Date: Wed, 25 Mar 2009 16:23:08 -0700 (PDT) From: Linus Torvalds X-X-Sender: torvalds@localhost.localdomain To: Theodore Tso cc: David Rees , Jesper Krogh , Linux Kernel Mailing List Subject: Re: Linux 2.6.29 In-Reply-To: <20090325220530.GR32307@mit.edu> Message-ID: References: <49C87B87.4020108@krogh.cc> <72dbd3150903232346g5af126d7sb5ad4949a7b5041f@mail.gmail.com> <49C88C80.5010803@krogh.cc> <72dbd3150903241200v38720ca0x392c381f295bdea@mail.gmail.com> <20090325183011.GN32307@mit.edu> <20090325220530.GR32307@mit.edu> User-Agent: Alpine 2.00 (LFD 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 682 Lines: 21 On Wed, 25 Mar 2009, Theodore Tso wrote: > > > > The problem being that unlike the ratio, there's no sane default value > > that you can at least argue is not _entirely_ pointless. > > Well, if the maximum time that someone wants to wait for an fsync() to > return is one second, and the RAID array can write 100MB/sec How are you going to tell the kernel that the RAID array can write 100MB/s? The kernel has no idea. 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/