Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965114AbXBQJr5 (ORCPT ); Sat, 17 Feb 2007 04:47:57 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965115AbXBQJr4 (ORCPT ); Sat, 17 Feb 2007 04:47:56 -0500 Received: from nf-out-0910.google.com ([64.233.182.187]:26917 "EHLO nf-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965114AbXBQJr4 (ORCPT ); Sat, 17 Feb 2007 04:47:56 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=KQutGNmGxHsIRkiJtRrXbSwMEVFKAtHCSjKwUKLa5KBHKhAdFPRzqKckj/a0HkK2MgpUgmWf7P51S5RJAvPps7WHuDh7q9Y7D774w5M9p15ycvLAym8gq3Fus/8v664sPGaCav3znXsKiS6Fz3F31GSwaiWPsxDhhHxGE843bOs= Message-ID: <45a44e480702170147x73d1e5c8v6439ac412b952a7@mail.gmail.com> Date: Sat, 17 Feb 2007 10:47:54 +0100 From: "Jaya Kumar" To: "Nick Piggin" Subject: Re: [PATCH/RFC 2.6.20-rc4 1/1] fbdev,mm: hecuba/E-Ink fbdev driver Cc: "Andrew Morton" , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-mm@kvack.org In-Reply-To: <45A6DAA2.8070605@yahoo.com.au> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20070111142427.GA1668@localhost> <20070111133759.d17730a4.akpm@osdl.org> <45a44e480701111622i32fffddcn3b4270d539620743@mail.gmail.com> <45A6DAA2.8070605@yahoo.com.au> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 910 Lines: 22 On 1/12/07, Nick Piggin wrote: > Jaya Kumar wrote: > > - write so get page_mkwrite where we add this page to a list > > - also schedules a workqueue task to be run after a delay > > - app continues writing to that page with no additional cost > > - the workqueue task comes in and unmaps the pages on the list, then > > completes the work associated with updating the framebuffer > > Have you thought about implementing a traditional write-back cache using > the dirty bits, rather than unmapping the page? > Ah, sorry, I erred in my description. I'm not unmapping pages, I'm calling page_mkclean which uses the dirty bits. Thanks, jaya - 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/