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    SubjectRe: [PATCH] Clean up namespace in kmap_types.h
    On Wednesday 03 December 2008, Andi Kleen wrote:

    > > The patch looks ok, but it seems wrong to do this only on one architecture,
    > > because kmap_types.h is mostly identical across all architectures.
    > >
    > > I'm working on patches to consolidate a lot of generic headers, why not
    > > add this in a generic way and make x86 use that version?
    > I was hoping that it could be still fixed for 2.6.28. Perhaps
    > that would be too intrusive that late? That is why I hope
    > it can be still considered even if it's x86 only.

    I don't think it's too intrusive, it just doesn't fit the 'strictly
    bug fixes' definition.

    > For .29 I suspect in fact the best way would be to just move it into linux
    > and use a superset because I don't think it's a big problem to waste 3-4
    > pages of virtual space for this.

    Yes, that would work as well. FWIW, we currently have the following
    nonstandard kmap types:

    avr32: KM_PTE2 (unused)
    frv: __KM_CACHE, __KM_PGD, __KM_ITLB_PTD, __KM_DTLB_PTD (unused
    except for __KM_CACHE)

    It should be fair to introduce common types KM_DCACHE (__KM_CACHE

    > > --- /dev/null
    > > +++ b/include/asm-generic/kmap_types.h
    > > @@ -0,0 +1,29 @@
    > > +#ifndef __ASM_GENERIC_KMAP_TYPES_H
    > > +#define __ASM_GENERIC_KMAP_TYPES_H
    > So are you submitting this?

    It's part of a larger series that I'm planning to submit for 2.6.29,
    but I wouldn't mind if you take care of this file independently.

    Arnd <><

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