From mboxrd@z Thu Jan 1 00:00:00 1970 From: wency@cn.fujitsu.com Date: Mon, 20 Aug 2012 09:35:42 +0000 Subject: [RFC V7 PATCH 19/19] memory-hotplug: remove sysfs file of node Message-Id: <1345455342-27752-20-git-send-email-wency@cn.fujitsu.com> List-Id: References: <1345455342-27752-1-git-send-email-wency@cn.fujitsu.com> In-Reply-To: <1345455342-27752-1-git-send-email-wency@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: 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 Cc: rientjes@google.com, liuj97@gmail.com, len.brown@intel.com, benh@kernel.crashing.org, paulus@samba.org, cl@linux.com, minchan.kim@gmail.com, akpm@linux-foundation.org, kosaki.motohiro@jp.fujitsu.com, isimatu.yasuaki@jp.fujitsu.com, Wen Congyang From: Yasuaki Ishimatsu The patch adds node_set_offline() and unregister_one_node() to remove_memory() for removing sysfs file of node. 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 CC: Wen Congyang Signed-off-by: Yasuaki Ishimatsu --- mm/memory_hotplug.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index 00c050f..e5928c7 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1279,6 +1279,11 @@ int __ref remove_memory(int nid, u64 start, u64 size) /* remove memmap entry */ firmware_map_remove(start, start + size, "System RAM"); + if (!node_present_pages(nid)) { + node_set_offline(nid); + unregister_one_node(nid); + } + arch_remove_memory(start, size); out: unlock_memory_hotplug(); -- 1.7.1