From owner-freebsd-current Wed Oct 16 2: 8:20 2002 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id F128A37B401; Wed, 16 Oct 2002 02:08:18 -0700 (PDT) Received: from pintail.mail.pas.earthlink.net (pintail.mail.pas.earthlink.net [207.217.120.122]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8436F43E8A; Wed, 16 Oct 2002 02:08:18 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from pool0009.cvx21-bradley.dialup.earthlink.net ([209.179.192.9] helo=mindspring.com) by pintail.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 181kA5-0000o5-00; Wed, 16 Oct 2002 02:08:17 -0700 Message-ID: <3DAD2B79.AD5412CA@mindspring.com> Date: Wed, 16 Oct 2002 02:03:53 -0700 From: Terry Lambert X-Mailer: Mozilla 4.79 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Robert Watson Cc: "Danny J. Zerkel" , Maxim Sobolev , "Vladimir B. Grebenschikov,Moscow,408-7227,123-4567,Some-info" , freebsd-arch@FreeBSD.ORG, freebsd-current@FreeBSD.ORG Subject: Re: short uid/gid References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Robert Watson wrote: > While I think support for the IPC_64 flag under emulation is useful, I'd > rather make use of compatibility system calls and type improvements for > the base FreeBSD implementation of the System V IPC APIs. Most of the > work necessary to support those changes is required in order to better > support fine-grained locking and MAC (breaking out the user and kernel > structures). Also, it means future applications will make use of the > improved APIs by default. In addition, other systems, such as Solaris, > have already made this change in this way, avoiding the IPC_64 flag > design. You could also simply use non-intersecting cmd parameter values for the new calls, which avaids the special flag, and leaves the backward compatability without adding grundles of new system calls. I thought that everything was going to 64 bits and we were getting a new system call entry vector in 5.x, anyway... wasn't Matt going to do something like that? -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message