From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 14 Jun 2007 16:06:03 +0900 From: KAMEZAWA Hiroyuki Subject: [RFC] memory unplug v5 [6/6] ia64 interface Message-Id: <20070614160603.b4fd61e7.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: <20070614155630.04f8170c.kamezawa.hiroyu@jp.fujitsu.com> References: <20070614155630.04f8170c.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@csn.ul.ie, y-goto@jp.fujitsu.com, clameter@sgi.com, hugh@veritas.com List-ID: IA64 memory unplug interface. Signed-Off-By: KAMEZAWA Hiroyuki --- arch/ia64/mm/init.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) Index: devel-2.6.22-rc4-mm2/arch/ia64/mm/init.c =================================================================== --- devel-2.6.22-rc4-mm2.orig/arch/ia64/mm/init.c +++ devel-2.6.22-rc4-mm2/arch/ia64/mm/init.c @@ -724,7 +724,17 @@ 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