From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Phillips <phillips@redhat.com>
Subject: Dumb question
Date: Mon, 11 Apr 2005 15:01:40 -0400
Message-ID: <200504111501.40423.phillips@redhat.com>
Reply-To: device-mapper development <dm-devel@redhat.com>
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Hi guys,

Here is a dumb question:  Why does dmsetup use (start, length) for each 
target line instead of just (length)?  Is it useful to leave some parts 
of a virtual device unmapped, and if so, why not require them to be 
mapped explicitly to zero or error?

Regards,

Daniel