From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [patch] Enable parallel scan on ata_piix Date: Fri, 24 Apr 2009 06:29:37 -0400 Message-ID: <49F19491.2030901@garzik.org> References: <20090423214411.515310df@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:52901 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752654AbZDXK3m (ORCPT ); Fri, 24 Apr 2009 06:29:42 -0400 In-Reply-To: <20090423214411.515310df@infradead.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Arjan van de Ven Cc: linux-ide@vger.kernel.org, alan@lxorguk.ukuu.org.uk Arjan van de Ven wrote: > Hi, > > This patch turns on parallel scanning for the ata_piix driver. > This driver is used on most netbooks (no AHCI for cheap storage it seems). > The scan is the dominating time factor in the kernel boot for these > devices; with this flag it gets cut in half for the device I used > for testing (eeepc). > Alan took a look at the driver source and concluded that it ought to be safe > to do for this driver. > > Signed-off-by: Arjan van de Ven I tend to doubt "safe", given the complicated and buggy silicon state machine that recreates the legacy IDE interface on SATA... Jeff