From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 14 Jun 2007 16:11:46 +0900 From: KAMEZAWA Hiroyuki Subject: Re: [RFC] memory unplug v5 [1/6] migration by kernel Message-Id: <20070614161146.5415f493.kamezawa.hiroyu@jp.fujitsu.com> In-Reply-To: References: <20070614155630.04f8170c.kamezawa.hiroyu@jp.fujitsu.com> <20070614155929.2be37edb.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: Christoph Lameter Cc: linux-mm@kvack.org, mel@csn.ul.ie, y-goto@jp.fujitsu.com, hugh@veritas.com List-ID: On Thu, 14 Jun 2007 00:01:51 -0700 (PDT) Christoph Lameter wrote: > On Thu, 14 Jun 2007, KAMEZAWA Hiroyuki wrote: > > > 1. A page which is not mapped can be target of migration. Then, we have > > to check page_mapped() before calling try_to_unmap(). > > How can we get an anonymous page that is not mapped? > In my case, any pages linked to LRU can be target of migration. "A page which is not mapped" may not be an anon. can be unmapped file caches. -Kame -- 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