From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 6 Mar 2007 14:00:20 +0900 From: KAMEZAWA Hiroyuki Subject: [RFC} memory unplug patchset prep [15/16] hot-unplug interface for ia64 Message-Id: <20070306140020.552d1c7f.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20070306133223.5d610daf.kamezawa.hiroyu@jp.fujitsu.com> References: <20070306133223.5d610daf.kamezawa.hiroyu@jp.fujitsu.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: KAMEZAWA Hiroyuki Cc: linux-mm@kvack.org, mel@skynet.ie, clameter@engr.sgi.com, akpm@linux-foundation.org List-ID: Call offline pages from remove_memory(). Signed-Off-By: KAMEZAWA Hiroyuki --- arch/ia64/mm/init.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) Index: devel-tree-2.6.20-mm2/arch/ia64/mm/init.c =================================================================== --- devel-tree-2.6.20-mm2.orig/arch/ia64/mm/init.c +++ devel-tree-2.6.20-mm2/arch/ia64/mm/init.c @@ -759,7 +759,18 @@ int arch_add_memory(int nid, u64 start, int remove_memory(u64 start, u64 size) { - return -EINVAL; + unsigned long start_pfn, end_pfn; + unsigned long timeout = 120 * HZ; + int ret; + start_pfn = start >> PAGE_SHIFT; + end_pfn = start_pfn + (size >> PAGE_SHIFT); + ret = offline_pages(start_pfn, end_pfn, timeout); + if (ret) + goto out; + /* we can free mem_map at this point */ +out: + return ret; } + EXPORT_SYMBOL_GPL(remove_memory); #endif -- 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