Re: 2.6.0-test10-mm1

[Christoph Hellwig <hch@infradead.org>]

On Wed, Nov 26, 2003 at 04:42:51AM -0800, Andrew Morton wrote:
> The individual patches in the broken-out/ directory are usually
> changelogged.  This one says:
> 
>   It was EXPORT_SYMBOL_GPL(), however IBM's GPFS is not GPL.
> 
>   - the GPFS team contributed to the testing and development of
>     invaldiate_mmap_range().
> 
>   - GPFS was developed under AIX and was ported to Linux, and hence meets
>     Linus's "some binary modules are OK" exemption.
> 
>   - The export makes sense: clustering filesystems need it for shootdowns to
>     ensure cache coherency.

Have you actually looked at the gpfs glue code? something that digs that deep
into the VM and VFS actually _must_ be derived work.  Or do wed allow people
now to pay a developer tax to buy themselves free from GPL restrictions.

I as one of the collective copytight holders of the kernel strongly disagree
with that, it can't be true that IBM can just ignore copyright law..