linux-kernel - Re: [PATCH] Loop device - Tracking page writes made to a loop devicethrough mmap

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Message-ID: <45F05FEB.9AED3D31@users.sourceforge.net>
Date:	Thu, 08 Mar 2007 21:11:39 +0200
From:	Jari Ruusu <jariruusu@...rs.sourceforge.net>
To:	Kandan Venkataraman <kven709@....unsw.EDU.AU>
Cc:	linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH] Loop device - Tracking page writes made to a loop 
 devicethrough mmap

Kandan Venkataraman wrote:
> All comments have been taken care of.

Your patch still does not do conversions of existing user space visible
'struct loop_info64' which is pretty much cast in stone. Blindly overwriting
larger structure over smaller user space buffer of existing userspace
binaries is the wrong way to do this.

There was a time when folks at least pretended that breaking user space ABI
was not tolerable.

-- 
Jari Ruusu  1024R/3A220F51 5B 4B F9 BB D3 3F 52 E9  DB 1D EB E3 24 0E A9 DD
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