From owner-freebsd-hackers@FreeBSD.ORG  Fri Apr 26 12:22:30 2013
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115])
 by hub.freebsd.org (Postfix) with ESMTP id 19D644CB;
 Fri, 26 Apr 2013 12:22:30 +0000 (UTC) (envelope-from jilles@stack.nl)
Received: from mx1.stack.nl (unknown [IPv6:2001:610:1108:5012::107])
 by mx1.freebsd.org (Postfix) with ESMTP id D615D15EC;
 Fri, 26 Apr 2013 12:22:29 +0000 (UTC)
Received: from snail.stack.nl (snail.stack.nl [IPv6:2001:610:1108:5010::131])
 by mx1.stack.nl (Postfix) with ESMTP id 963621203DB;
 Fri, 26 Apr 2013 14:22:14 +0200 (CEST)
Received: by snail.stack.nl (Postfix, from userid 1677)
 id 72E9728493; Fri, 26 Apr 2013 14:22:14 +0200 (CEST)
Date: Fri, 26 Apr 2013 14:22:14 +0200
From: Jilles Tjoelker <jilles@stack.nl>
To: Eitan Adler <lists@eitanadler.com>
Subject: Re: Some improvements to rm(1)
Message-ID: <20130426122214.GA9086@stack.nl>
References: <CAF6rxg=5aAyk88KcbuGhG1Nwn5HdYqMiaT7umX2EOLApDwOk4Q@mail.gmail.com>
 <20130426025049.GC50623@lor.one-eyed-alien.net>
 <CAF6rxgm6J63M7JO4+xqwPNu1KwTrmEiOK5YKT5hYXb5yEag0Zg@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAF6rxgm6J63M7JO4+xqwPNu1KwTrmEiOK5YKT5hYXb5yEag0Zg@mail.gmail.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org>,
 Brooks Davis <brooks@freebsd.org>
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
 <freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-hackers>, 
 <mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
 <mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 26 Apr 2013 12:22:30 -0000

On Thu, Apr 25, 2013 at 10:56:10PM -0400, Eitan Adler wrote:
> On 25 April 2013 22:50, Brooks Davis <brooks@freebsd.org> wrote:
> > On Thu, Apr 25, 2013 at 10:16:32PM -0400, Eitan Adler wrote:
> >> Anyone have thoughts on the following?

> >> commit 82c78ba923d8ce4a1bfbb309658c49021c8bb384
> >> Author: Eitan Adler <lists@eitanadler.com>
> >> Date:   Thu Apr 25 22:14:49 2013 -0400

> >>     Take some improvements from DragonFlyBSD:
> >>       - add const where appropriate
> >>       - add static where appropriate
> >>       - fix a whitespace issues
> >
> > The no-op changes look more correct to me.

> > I think the -x option seems a bit odd.  What is the use case?  At a
> > first thought, it seems to raise more questions than it resolves.

> It goes along with cp -x, find -x, and others.

> Quick example #1: You have /usr/ports /usr/ports/distfiles as
> different mount points it lets you wipe /usr/ports without wiping your
> distfile cache.

> Quick example #2: You have /usr/src/ null mounted in every user's
> /home/ and you want to wipe one home directory.

Hmm, isn't this already possible using  find -x DIR -delete  ?

There will be an error message 'Device busy' about attempting to delete
the mount point but this does not even affect the exit status and all
files not under the mount point are removed.

-- 
Jilles Tjoelker