bin/126324: [patch] rc.d/tmp: Prevent mounting /tmp in second time

[Alex Kozlov]

The following reply was made to PR bin/126324; it has been noted by GNATS.

From: Alex Kozlov <spam at rm-rf.kiev.ua>
To: Kris Kennaway <kris at FreeBSD.org>, bug-followup at freebsd.org,
	spam at rm-rf.kiev.ua
Cc:  
Subject: Re: bin/126324: [patch] rc.d/tmp: Prevent mounting /tmp in second
	time
Date: Thu, 7 Aug 2008 21:49:03 +0300

 On Thu, Aug 07, 2008 at 07:25:49PM +0200, Kris Kennaway wrote:
 > Alex Kozlov wrote:
 > 
 > > Well, as alternative We can just don't touch /tmp if it already mounted.
 > This is much better on general grounds.
 I post patch for review soon.
 
 > > This also prevent md device leak at least until bin/114468 will be
 > > resolved.
 > 
 > I don't like that PR since it introduces a layering violation, and 
 > doesn't come with a justification of why it is necessary.
 > 
 > Utilities that operate on filesystems shouldn't have knowledge about a 
 > particular kind of backing store.
 I agree that this solution is a little ugly but also true that We need
 a simple way to garbage collect md devices.
 
 Current way is even more ugly:
 md=$(mount |grep ${mp}|cut -f1 -d' '); umount ${mp}; mdconfig -d -u ${md}
 
 
 --
 Adios