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SubjectRe: 2.6.0-test10-mm1
Christoph Hellwig <hch@infradead.org> wrote:
>
> On Tue, Nov 25, 2003 at 09:15:18PM -0800, Andrew Morton wrote:
> > +invalidate_mmap_range-non-gpl-export.patch
> >
> > Export invalidate_mmap_range() to all modules
>
> Why?

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.


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