From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by nf-out-0910.google.com with SMTP id b2so1681319nfe for ; Sat, 17 Feb 2007 01:47:55 -0800 (PST) Message-ID: <45a44e480702170147x73d1e5c8v6439ac412b952a7@mail.gmail.com> Date: Sat, 17 Feb 2007 10:47:54 +0100 From: "Jaya Kumar" Subject: Re: [PATCH/RFC 2.6.20-rc4 1/1] fbdev,mm: hecuba/E-Ink fbdev driver 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: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Andrew Morton , linux-fbdev-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: 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, 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