From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx176.postini.com [74.125.245.176]) by kanga.kvack.org (Postfix) with SMTP id 02E176B0072 for ; Fri, 19 Oct 2012 06:20:20 -0400 (EDT) Received: from m4.gw.fujitsu.co.jp (unknown [10.0.50.74]) by fgwmail5.fujitsu.co.jp (Postfix) with ESMTP id 968563EE0BC for ; Fri, 19 Oct 2012 19:20:19 +0900 (JST) Received: from smail (m4 [127.0.0.1]) by outgoing.m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 78BE045DE56 for ; Fri, 19 Oct 2012 19:20:19 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (s4.gw.fujitsu.co.jp [10.0.50.94]) by m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 5BB1745DE53 for ; Fri, 19 Oct 2012 19:20:19 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id 49C961DB8044 for ; Fri, 19 Oct 2012 19:20:19 +0900 (JST) Received: from g01jpexchkw12.g01.fujitsu.local (g01jpexchkw12.g01.fujitsu.local [10.0.194.51]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id F40C51DB803E for ; Fri, 19 Oct 2012 19:20:18 +0900 (JST) Message-ID: <50812949.6040005@jp.fujitsu.com> Date: Fri, 19 Oct 2012 19:19:53 +0900 From: Yasuaki Ishimatsu MIME-Version: 1.0 Subject: Re: [PATCH v2 0/3] acpi,memory-hotplug : implement framework for hot removing memory References: <1350641040-19434-1-git-send-email-wency@cn.fujitsu.com> In-Reply-To: <1350641040-19434-1-git-send-email-wency@cn.fujitsu.com> Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: wency@cn.fujitsu.com Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, liuj97@gmail.com, len.brown@intel.com, akpm@linux-foundation.org, kosaki.motohiro@jp.fujitsu.com, muneda.takahiro@jp.fujitsu.com, rjw@sisk.pl CCing Rafael, because he become ACPI Maintainer. Hi Wen, If you update the patch-set, please CCing Rafael from the next time. Thanks, Yasuaki Ishimatsu 2012/10/19 19:03, wency@cn.fujitsu.com wrote: > From: Wen Congyang > > The patch-set implements a framework for hot removing memory. > > The memory device can be removed by 2 ways: > 1. send eject request by SCI > 2. echo 1 >/sys/bus/pci/devices/PNP0C80:XX/eject > > In the 1st case, acpi_memory_disable_device() will be called. > In the 2nd case, acpi_memory_device_remove() will be called. > acpi_memory_device_remove() will also be called when we unbind the > memory device from the driver acpi_memhotplug or a driver initialization > fails. > > acpi_memory_disable_device() has already implemented a code which > offlines memory and releases acpi_memory_info struct . But > acpi_memory_device_remove() has not implemented it yet. > > So the patch prepares the framework for hot removing memory and > adds the framework into acpi_memory_device_remove(). > > The last version of this patchset is here: > https://lkml.org/lkml/2012/10/3/126 > > Changelos from v1 to v2: > Patch1: use acpi_bus_trim() instead of acpi_bus_remove() > Patch2: new patch, introduce a lock to protect the list > Patch3: remove memory too when type is ACPI_BUS_REMOVAL_NORMAL > Note: I don't send [Patch2-4 v1] in this series because they > are no logical changes in these 3 patches. > > Wen Congyang (2): > acpi,memory-hotplug: call acpi_bus_trim() to remove memory device > acpi,memory-hotplug: introduce a mutex lock to protect the list in > acpi_memory_device > > Yasuaki Ishimatsu (1): > acpi,memory-hotplug : add memory offline code to > acpi_memory_device_remove() > > drivers/acpi/acpi_memhotplug.c | 51 ++++++++++++++++++++++++++++++++-------- > 1 files changed, 41 insertions(+), 10 deletions(-) > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org