Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753350Ab0KOJKz (ORCPT ); Mon, 15 Nov 2010 04:10:55 -0500 Received: from fgwmail6.fujitsu.co.jp ([192.51.44.36]:58627 "EHLO fgwmail6.fujitsu.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752689Ab0KOJKx (ORCPT ); Mon, 15 Nov 2010 04:10:53 -0500 X-SecurityPolicyCheck-FJ: OK by FujitsuOutboundMailChecker v1.3.1 From: KOSAKI Motohiro To: Peter Zijlstra Subject: Re: fadvise DONTNEED implementation (or lack thereof) Cc: kosaki.motohiro@jp.fujitsu.com, Minchan Kim , Ben Gamari , linux-kernel@vger.kernel.org, rsync@lists.samba.org, linux-mm@kvack.org, Wu Fengguang In-Reply-To: <1289810825.2109.469.camel@laptop> References: <1289810825.2109.469.camel@laptop> Message-Id: <20101115180153.BF18.A69D9226@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Mailer: Becky! ver. 2.50.07 [ja] Date: Mon, 15 Nov 2010 18:10:49 +0900 (JST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 764 Lines: 21 > > I wonder what's the problem in Peter's patch 'drop behind'. > > http://www.mail-archive.com/linux-kernel@vger.kernel.org/msg179576.html > > > > Could anyone tell me why it can't accept upstream? > > Read the thread, its quite clear nobody got convinced it was a good idea > and wanted to fix the use-once policy, then Rik rewrote all of > page-reclaim. If my understand is correct, rsync touch data twice (for a hash calculation and for a copy). then, currect used-once-heuristics seems still doesn't work. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/