Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 30 Jul 2002 10:03:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 30 Jul 2002 10:03:32 -0400 Received: from perninha.conectiva.com.br ([200.250.58.156]:31760 "HELO perninha.conectiva.com.br") by vger.kernel.org with SMTP id ; Tue, 30 Jul 2002 10:03:31 -0400 Date: Tue, 30 Jul 2002 11:06:37 -0300 (BRT) From: Rik van Riel X-X-Sender: riel@duckman.distro.conectiva To: Andi Kleen Cc: Andrea Arcangeli , , Subject: Re: [BK PATCH 2.5] Introduce 64-bit versions of PAGE_{CACHE_,}{MASK,ALIGN} In-Reply-To: Message-ID: X-spambait: aardvark@kernelnewbies.org X-spammeplease: aardvark@nl.linux.org MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 852 Lines: 27 On 30 Jul 2002, Andi Kleen wrote: > Andrea Arcangeli writes: > > > > Then again, Andi says that sizeof(struct page) is a problem for > > > x86-64. > > > > not true. > > x86-64 has slightly below 100 bytes struct page We really need to look at replacing the page pointers with page frame numbers and packing the 32-bit variables together to save some memory on 64-bit architectures. Rik -- http://www.linuxsymposium.org/2002/ "You're one of those condescending OLS attendants" "Here's a nickle kid. Go buy yourself a real t-shirt" http://www.surriel.com/ http://distro.conectiva.com/ - 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/