From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from song.cn.fujitsu.com (unknown [222.73.24.84]) by ozlabs.org (Postfix) with ESMTP id 6EA8E2C009D for ; Wed, 5 Sep 2012 20:00:03 +1000 (EST) From: wency@cn.fujitsu.com To: x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-ia64@vger.kernel.org, cmetcalf@tilera.com, sparclinux@vger.kernel.org Subject: [RFC v9 PATCH 18/21] memory-hotplug: add node_device_release Date: Wed, 5 Sep 2012 17:25:52 +0800 Message-Id: <1346837155-534-19-git-send-email-wency@cn.fujitsu.com> In-Reply-To: <1346837155-534-1-git-send-email-wency@cn.fujitsu.com> References: <1346837155-534-1-git-send-email-wency@cn.fujitsu.com> Cc: len.brown@intel.com, Wen Congyang , isimatu.yasuaki@jp.fujitsu.com, paulus@samba.org, minchan.kim@gmail.com, kosaki.motohiro@jp.fujitsu.com, rientjes@google.com, cl@linux.com, akpm@linux-foundation.org, liuj97@gmail.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Yasuaki Ishimatsu When calling unregister_node(), the function shows following message at device_release(). Device 'node2' does not have a release() function, it is broken and must be fixed. So the patch implements node_device_release() CC: David Rientjes CC: Jiang Liu CC: Len Brown CC: Benjamin Herrenschmidt CC: Paul Mackerras CC: Christoph Lameter Cc: Minchan Kim CC: Andrew Morton CC: KOSAKI Motohiro Signed-off-by: Yasuaki Ishimatsu Signed-off-by: Wen Congyang --- drivers/base/node.c | 11 +++++++++++ 1 files changed, 11 insertions(+), 0 deletions(-) diff --git a/drivers/base/node.c b/drivers/base/node.c index af1a177..07523fb 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -252,6 +252,16 @@ static inline void hugetlb_register_node(struct node *node) {} static inline void hugetlb_unregister_node(struct node *node) {} #endif +static void node_device_release(struct device *dev) +{ + struct node *node_dev = to_node(dev); + +#if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS) + flush_work(&node_dev->node_work); +#endif + + memset(node_dev, 0, sizeof(struct node)); +} /* * register_node - Setup a sysfs device for a node. @@ -265,6 +275,7 @@ int register_node(struct node *node, int num, struct node *parent) node->dev.id = num; node->dev.bus = &node_subsys; + node->dev.release = node_device_release; error = device_register(&node->dev); if (!error){ -- 1.7.1