From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m1.gw.fujitsu.co.jp ([10.0.50.71]) by fgwmail5.fujitsu.co.jp (8.12.10/Fujitsu Gateway) id i97NWnUI028393 for ; Fri, 8 Oct 2004 08:32:49 +0900 (envelope-from kamezawa.hiroyu@jp.fujitsu.com) Received: from s0.gw.fujitsu.co.jp by m1.gw.fujitsu.co.jp (8.12.10/Fujitsu Domain Master) id i97NWnND021855 for ; Fri, 8 Oct 2004 08:32:49 +0900 (envelope-from kamezawa.hiroyu@jp.fujitsu.com) Received: from s0.gw.fujitsu.co.jp (s0 [127.0.0.1]) by s0.gw.fujitsu.co.jp (Postfix) with ESMTP id 0A21EA7CF2 for ; Fri, 8 Oct 2004 08:32:49 +0900 (JST) Received: from fjmail503.fjmail.jp.fujitsu.com (fjmail503-0.fjmail.jp.fujitsu.com [10.59.80.100]) by s0.gw.fujitsu.co.jp (Postfix) with ESMTP id 9AE19A7CF1 for ; Fri, 8 Oct 2004 08:32:48 +0900 (JST) Received: from jp.fujitsu.com (fjscan501-0.fjmail.jp.fujitsu.com [10.59.80.120]) by fjmail503.fjmail.jp.fujitsu.com (Sun Internet Mail Server sims.4.0.2001.07.26.11.50.p9) with ESMTP id <0I58005QVMQM61@fjmail503.fjmail.jp.fujitsu.com> for linux-mm@kvack.org; Fri, 8 Oct 2004 08:32:47 +0900 (JST) Date: Fri, 08 Oct 2004 08:38:24 +0900 From: Hiroyuki KAMEZAWA Subject: Re: [RFC/PATCH] pfn_valid() more generic : arch independent part[0/2] In-reply-to: <1248570000.1097159887@[10.10.2.4]> Message-id: <4165D370.1090208@jp.fujitsu.com> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-transfer-encoding: 7bit References: <4164E20D.5020400@jp.fujitsu.com> <1248570000.1097159887@[10.10.2.4]> Sender: owner-linux-mm@kvack.org Return-Path: To: "Martin J. Bligh" Cc: "Luck, Tony" , LinuxIA64 , linux-mm List-ID: Martin J. Bligh wrote: > The normal way to fix the above is just to have a bitmap array to test - > in your case a 1GB granularity would be sufficicent. That takes < 1 word > to implement for the example above ;-) > > M. > Although I don't like a page fault, I now understand it doesn't often happen. I'd like to use current implementation. Thanks 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: aart@kvack.org