From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx200.postini.com [74.125.245.200]) by kanga.kvack.org (Postfix) with SMTP id 48C206B0070 for ; Thu, 2 Aug 2012 02:01:13 -0400 (EDT) From: Lai Jiangshan Subject: [RFC PATCH 14/23 V2] slub, hotplug: ignore unrelated node's hot-adding and hot-removing Date: Thu, 2 Aug 2012 14:01:19 +0800 Message-Id: <1343887288-8866-15-git-send-email-laijs@cn.fujitsu.com> In-Reply-To: <1343887288-8866-1-git-send-email-laijs@cn.fujitsu.com> References: <1343887288-8866-1-git-send-email-laijs@cn.fujitsu.com> Sender: owner-linux-mm@kvack.org List-ID: To: Mel Gorman , linux-kernel@vger.kernel.org Cc: Lai Jiangshan , Christoph Lameter , Pekka Enberg , Matt Mackall , linux-mm@kvack.org SLUB only fucus on the nodes which has normal memory, so ignore the other node's hot-adding and hot-removing. Signed-off-by: Lai Jiangshan --- mm/slub.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/mm/slub.c b/mm/slub.c index 8c691fa..4c5bdc0 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3577,6 +3577,9 @@ static void slab_mem_offline_callback(void *arg) if (offline_node < 0) return; + if (page_zonenum(pfn_to_page(marg->start_pfn)) > ZONE_NORMAL) + return; + down_read(&slub_lock); list_for_each_entry(s, &slab_caches, list) { n = get_node(s, offline_node); @@ -3611,6 +3614,9 @@ static int slab_mem_going_online_callback(void *arg) if (nid < 0) return 0; + if (page_zonenum(pfn_to_page(marg->start_pfn)) > ZONE_NORMAL) + return 0; + /* * We are bringing a node online. No memory is available yet. We must * allocate a kmem_cache_node structure in order to bring the node -- 1.7.1 -- 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