Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261409AbVCGMZp (ORCPT ); Mon, 7 Mar 2005 07:25:45 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261479AbVCGMZp (ORCPT ); Mon, 7 Mar 2005 07:25:45 -0500 Received: from mx1.redhat.com ([66.187.233.31]:59063 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S261409AbVCGMZk (ORCPT ); Mon, 7 Mar 2005 07:25:40 -0500 From: David Howells In-Reply-To: <20050307041047.59c24dec.akpm@osdl.org> References: <20050307041047.59c24dec.akpm@osdl.org> <20050307034747.4c6e7277.akpm@osdl.org> <20050307033734.5cc75183.akpm@osdl.org> <20050303123448.462c56cd.akpm@osdl.org> <20050302135146.2248c7e5.akpm@osdl.org> <20050302090734.5a9895a3.akpm@osdl.org> <9420.1109778627@redhat.com> <31789.1109799287@redhat.com> <13767.1109857095@redhat.com> <9268.1110194624@redhat.com> <9741.1110195784@redhat.com> <9947.1110196314@redhat.com> To: Andrew Morton Cc: torvalds@osdl.org, davidm@snapgear.com, linux-kernel@vger.kernel.org Subject: Re: [PATCH 1/2] BDI: Provide backing device capability information X-Mailer: MH-E 7.82; nmh 1.0.4; GNU Emacs 21.3.50.1 Date: Mon, 07 Mar 2005 12:25:18 +0000 Message-ID: <10449.1110198318@redhat.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 721 Lines: 20 Andrew Morton wrote: > > Making it unsigned long on a 32-bit machine will make no > > difference. Making it unsigned int on a 64-bit machine will waste four > > bytes. > > No, it won't waste any bytes at all. It won't save any either. > > But if someone comes along later and wants to add another int to that > structure, they won't know that your field was needlessly made a long, and > they'll then waste another eight bytes. Okay... Fair enough. David - 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/