From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754145AbZDEXKQ (ORCPT ); Sun, 5 Apr 2009 19:10:16 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753865AbZDEXKA (ORCPT ); Sun, 5 Apr 2009 19:10:00 -0400 Received: from srv5.dvmed.net ([207.36.208.214]:52099 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753466AbZDEXKA (ORCPT ); Sun, 5 Apr 2009 19:10:00 -0400 Message-ID: <49D93A42.2030009@garzik.org> Date: Sun, 05 Apr 2009 19:09:54 -0400 From: Jeff Garzik User-Agent: Thunderbird 2.0.0.21 (X11/20090320) MIME-Version: 1.0 To: David Howells CC: LKML , linux-fsdevel Subject: Should I choose SLOW_WORK? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Score: -4.4 (----) X-Spam-Report: SpamAssassin version 3.2.5 on srv5.dvmed.net summary: Content analysis details: (-4.4 points, 5.0 required) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I am newly presented with > Enable slow work thread pool (SLOW_WORK) [N/y/?] (NEW) ? > > The slow work thread pool provides a number of dynamically allocated > threads that can be used by the kernel to perform operations that > take a relatively long time. > > An example of this would be CacheFiles doing a path lookup followed > by a series of mkdirs and a create call, all of which have to touch > disk. However, this does not tell me whether I need or want this. And, why must the user make this choice at all? Surely it can be auto-selected, if cachefs is enabled? At a minimum, hide this under CONFIG_EMBEDDED or whatnot, so that most users don't see this choice, IMO. Jeff