Re: Re-enabling non-GPL driver access to disk partition information

From: Rik van Riel
Date: Fri Jan 29 2010 - 10:10:13 EST

On 01/29/2010 09:15 AM, Derek Atkins wrote:
Hi Linuxers,

I've been working on a proprietary disk driver which has been working
for the past couple years on Linux as old as 2.6.18. Unfortunately,
as of 2.6.28 it appears that some of the gendisk interfaces (read:
structure members) I was using were moved behind an RCU and other
GPL-ONLY accessor interfaces.

RCU is patented, with permission for GPL code to use the algorithm.

Exposing RCU bits to non-GPL modules would be rather pointless, since
those don't have permission (from IBM, the RCU patent holder) to use
RCU, anyway.

All rights reversed.
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