From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753066AbYE1QxI (ORCPT ); Wed, 28 May 2008 12:53:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751762AbYE1Qwz (ORCPT ); Wed, 28 May 2008 12:52:55 -0400 Received: from mailout05.t-online.de ([194.25.134.82]:54194 "EHLO mailout05.t-online.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751689AbYE1Qwz (ORCPT ); Wed, 28 May 2008 12:52:55 -0400 Message-ID: <483D8DA6.20903@t-online.de> Date: Wed, 28 May 2008 18:51:50 +0200 From: Bernd Schmidt User-Agent: Thunderbird 2.0.0.14 (X11/20080506) MIME-Version: 1.0 To: David Howells CC: Linux Kernel Mailing List , Greg Ungerer , David McCullough , Paul Mundt , Matt Mackall , "Wu, Bryan" , Mike Frysinger Subject: Re: [PATCH, RFD] Unbreaking nommu mmap, v2 References: <483C3874.9010004@t-online.de> <31103.1211993234@redhat.com> In-Reply-To: <31103.1211993234@redhat.com> X-Enigmail-Version: 0.95.6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-ID: rCqF2EZTrhO8VxNs0mexzX5I1WNFyYWQSeQAKrdm519FEiJ1r8i99fQCY6QpTH-ZRm X-TOI-MSGID: 3900a202-54fb-443f-99e6-500d22ad6075 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org David Howells wrote: > Note that this patch unconditionally trims allocations, whereas on yours this > is optional. That can be easily remedied, if, in fact, the ability to request > untrimmed allocations is worth doing. Have you investigated the effect on fragmentation? I backed off on trimming allocations, as it gave unacceptable results. Is this patch different from the ones I tested last year? They were not stable in my tests back then (fragmentation may have been an issue). Bernd -- This footer brought to you by insane German lawmakers. Analog Devices GmbH Wilhelm-Wagenfeld-Str. 6 80807 Muenchen Sitz der Gesellschaft Muenchen, Registergericht Muenchen HRB 40368 Geschaeftsfuehrer Thomas Wessel, William A. Martin, Margaret Seif