From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754354Ab3EFRUr (ORCPT ); Mon, 6 May 2013 13:20:47 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:56870 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753525Ab3EFRUp (ORCPT ); Mon, 6 May 2013 13:20:45 -0400 Date: Mon, 6 May 2013 10:20:44 -0700 From: Greg Kroah-Hartman To: "Rafael J. Wysocki" Cc: Toshi Kani , ACPI Devel Maling List , LKML , isimatu.yasuaki@jp.fujitsu.com, vasilis.liaskovitis@profitbricks.com, Len Brown , linux-mm@kvack.org Subject: Re: [PATCH 2/2 v2, RFC] Driver core: Introduce offline/online callbacks for memory blocks Message-ID: <20130506172044.GA13974@kroah.com> References: <1576321.HU0tZ4cGWk@vostro.rjw.lan> <1583356.7oqZ7gBy2q@vostro.rjw.lan> <2376818.CRj1BTLk0Y@vostro.rjw.lan> <19540491.PRsM4lKIYM@vostro.rjw.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <19540491.PRsM4lKIYM@vostro.rjw.lan> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, May 04, 2013 at 01:21:16PM +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki > > Introduce .offline() and .online() callbacks for memory_subsys > that will allow the generic device_offline() and device_online() > to be used with device objects representing memory blocks. That, > in turn, allows the ACPI subsystem to use device_offline() to put > removable memory blocks offline, if possible, before removing > memory modules holding them. > > The 'online' sysfs attribute of memory block devices will attempt to > put them offline if 0 is written to it and will attempt to apply the > previously used online type when onlining them (i.e. when 1 is > written to it). > > Signed-off-by: Rafael J. Wysocki > --- > drivers/base/memory.c | 105 +++++++++++++++++++++++++++++++++++++------------ > include/linux/memory.h | 1 > 2 files changed, 81 insertions(+), 25 deletions(-) Acked-by: Greg Kroah-Hartman