Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933293Ab2EWPxp (ORCPT ); Wed, 23 May 2012 11:53:45 -0400 Received: from mail-vb0-f46.google.com ([209.85.212.46]:47127 "EHLO mail-vb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753369Ab2EWPxn (ORCPT ); Wed, 23 May 2012 11:53:43 -0400 MIME-Version: 1.0 In-Reply-To: References: <1337671292-15583-1-git-send-email-ming.m.lin@intel.com> Date: Wed, 23 May 2012 23:53:42 +0800 X-Google-Sender-Auth: t4o3EI7Nsqy_JkL2sXo-TahYP4o Message-ID: Subject: Re: [RFC PATCH v3 0/4]: block layer runtime pm From: Lin Ming To: Alan Stern Cc: Jens Axboe , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-scsi@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1132 Lines: 39 On Wed, May 23, 2012 at 4:29 PM, Lin Ming wrote: > On Wed, May 23, 2012 at 12:10 AM, Alan Stern wrote: >> On Tue, 22 May 2012, Lin Ming wrote: >> >>> Hi, >>> >>> In August 2010, Jens and Alan discussed about "Runtime PM and the block >>> layer". http://marc.info/?t=128259108400001&r=1&w=2 >>> >>> Here are the RFC v3 patches that try to implement the ideas discussed. >>> Welcome to give it a try. >> >> Have you checked to make sure these changes won't break the IDE driver? >> Maybe it will need to set the REQ_PM flag too. REQ_PM flag is about runtime PM, but IDE driver does not support runtime PM at all. # grep runtime drivers/ide/*.c This gets empty result. So I think it won't break the IDE driver. Thanks, Lin Ming > > Will check it. > > Another thing need to check is if system suspend/resume works. > >> >> Alan Stern -- 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/