Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933520AbbFWTAN (ORCPT ); Tue, 23 Jun 2015 15:00:13 -0400 Received: from webbox4.loswebos.de ([213.187.93.205]:43474 "EHLO webbox4.loswebos.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932199AbbFWTAI (ORCPT ); Tue, 23 Jun 2015 15:00:08 -0400 X-Greylist: delayed 534 seconds by postgrey-1.27 at vger.kernel.org; Tue, 23 Jun 2015 15:00:07 EDT In-Reply-To: References: <20150622153653.GB15570@kroah.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Subject: Re: Stop SSD from waiting for "Spinning up disk..." From: Marc Burkhardt Reply-to: marc@osknowledge.org Date: Tue, 23 Jun 2015 18:51:07 +0000 To: Jeff Chua , Greg Kroah-Hartman CC: Linux Kernel , Christoph Hellwig Message-ID: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1290 Lines: 43 You might want to grep for QUEUE_FLAG_NONROT or queue_nonrot_entry... Regards, Marc P.S: sent from mobile, might be short. Am 23. Juni 2015 17:02:22 MESZ, schrieb Jeff Chua : >On Mon, Jun 22, 2015 at 11:36 PM, Greg Kroah-Hartman > wrote: >> On Mon, Jun 22, 2015 at 03:25:29PM +0800, Jeff Chua wrote: >>> >>> There's no need to wait for disk spin-up for USB SSD devices. This >patch >>> allow the SSD to skip waiting disk spin-up by passing sd_mod.ssd=1 >during >>> boot-up. >>> >>> If there's a better way to handle this, please share. >> >> Module parameters are never a solution for a device-specific >property, >> sorry. > >Greg, > >SSD is coming mainstream and it doesn't make sense wasting time >spinning up "disk" ... > > >Jeff. >-- >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/ -- 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/