From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx172.postini.com [74.125.245.172]) by kanga.kvack.org (Postfix) with SMTP id 439E66B004D for ; Fri, 2 Nov 2012 08:47:44 -0400 (EDT) From: "Rafael J. Wysocki" Subject: Re: [PATCH v3 0/3] acpi,memory-hotplug : implement framework for hot removing memory Date: Fri, 02 Nov 2012 13:51:49 +0100 Message-ID: <1528960.KUfu6MoGpQ@vostro.rjw.lan> In-Reply-To: <1351247463-5653-1-git-send-email-wency@cn.fujitsu.com> References: <1351247463-5653-1-git-send-email-wency@cn.fujitsu.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" 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, isimatu.yasuaki@jp.fujitsu.com, laijs@cn.fujitsu.com On Friday, October 26, 2012 06:31:00 PM 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/2012/10/19/156 > > Changelogs from v2 to v3: > Patch2: rename lock to list_lock > > Changelogs 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 file changed, 41 insertions(+), 10 deletions(-) All patches in the series applied to the linux-next branch of the linux-pm.git tree as v3.8 material. Thanks, Rafael -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- 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