Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750996AbWJ0XKV (ORCPT ); Fri, 27 Oct 2006 19:10:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751004AbWJ0XKU (ORCPT ); Fri, 27 Oct 2006 19:10:20 -0400 Received: from smtp.osdl.org ([65.172.181.4]:29162 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1750990AbWJ0XKT (ORCPT ); Fri, 27 Oct 2006 19:10:19 -0400 Date: Fri, 27 Oct 2006 16:06:26 -0700 From: Andrew Morton To: Alan Cox Cc: Pavel Machek , Greg KH , Stephen Hemminger , Matthew Wilcox , Adrian Bunk , Linus Torvalds , Linux Kernel Mailing List , linux-pci@atrey.karlin.mff.cuni.cz Subject: Re: [patch] drivers: wait for threaded probes between initcall levels Message-Id: <20061027160626.8ac4a910.akpm@osdl.org> In-Reply-To: <1161989970.16839.45.camel@localhost.localdomain> References: <20061026224541.GQ27968@stusta.de> <20061027010252.GV27968@stusta.de> <20061027012058.GH5591@parisc-linux.org> <20061026182838.ac2c7e20.akpm@osdl.org> <20061026191131.003f141d@localhost.localdomain> <20061027170748.GA9020@kroah.com> <20061027172219.GC30416@elf.ucw.cz> <20061027113908.4a82c28a.akpm@osdl.org> <20061027114144.f8a5addc.akpm@osdl.org> <20061027114237.d577c153.akpm@osdl.org> <1161989970.16839.45.camel@localhost.localdomain> X-Mailer: Sylpheed version 2.2.7 (GTK+ 2.8.6; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1013 Lines: 23 On Fri, 27 Oct 2006 23:59:30 +0100 Alan Cox wrote: > Ar Gwe, 2006-10-27 am 11:42 -0700, ysgrifennodd Andrew Morton: > > IOW, we want to be multithreaded _within_ an initcall level, but not between > > different levels. > > Thats actually insufficient. We have link ordered init sequences in > large numbers of driver subtrees (ATA, watchdog, etc). We'll need > several more initcall layers to fix that. > It would be nice to express those dependencies in some clearer and less fragile manner than link order. I guess finer-grained initcall levels would do that, but it doesn't scale very well. But whatever. I think multithreaded probing just doesn't pass the benefit-versus-hassle test, sorry. Make it dependent on CONFIG_GREGKH ;) - 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/