Re: Non-GPL export of invalidate_mmap_range

["Paul E. McKenney" <paulmck@us.ibm.com>]

On Thu, Feb 19, 2004 at 11:29:00AM +0100, Lars Marowsky-Bree wrote:
> On 2004-02-18T14:51:32,
>    Andrew Morton <akpm@osdl.org> said:
> 
> > a) Does the export make technical sense?  Do filesystems have
> >    legitimate need for access to this symbol?
> > 
> > (really, a) is sufficient grounds, but for real-world reasons:)
> 
> Technically, I assume both OCFS, Lustre, (OpenGFS), PolyServe and
> basically /everyone/ doing a cluster file system, proprietary or not,
> will eventually need this capability. Vendors have included hooks for
> this in 2.4 already anyway.
> 
> So on technical grounds, I'm strongly inclined to support it, but I
> would like to suggest that it is ensured that the hook is sufficient for
> all of the named CFS.
> 
> Paul, have you spoken with them?

Lustre, yes.  At OLS last summer, Peter Braam said that it was useful.
The others, no, but they are certainly free to chime in.

> > b) Does the IBM filsystem meet the kernel's licensing requirements?
> 
> If you are worried about this one, you can export it GPL-only, which as
> an Open Source developer I'd appreciate, but from a real-world business
> perspective would be unhappy about ;-)

Been there, done that.  ;-)

						Thanx, Paul

> Sincerely,
>     Lars Marowsky-Brée <lmb@suse.de>
> 
> -- 
> High Availability & Clustering	      \ ever tried. ever failed. no matter.
> SUSE Labs			      | try again. fail again. fail better.
> Research & Development, SUSE LINUX AG \ 	-- Samuel Beckett
> 
>