[PATCH RFC 0/7] Unify asm-x86/pgtable.h and page.h

[Jeremy Fitzhardinge <jeremy@goop.org>]

NB: RFC ONLY.  DO NOT APPLY.

This series unifies many definitions in asm-x86/pgtable.h and page.h.
Later in the series, I take advantage of some of the earlier
infrastructure to simplify paravirt.h and bits of the Xen code.

This patch applies on top of Glauber's 64-bit pvops unification, so it
won't apply directly to the current tree.

I've tested all the 32-bit combinations
(paravirt/non-paravirt/PAE/non-PAE), but haven't set up a 64-bit test
box yet.

The diffstat of the pure unification bits is nice:
 arch/x86/mm/init_32.c            |   31 ++-
 arch/x86/mm/init_64.c            |    3 
 arch/x86/xen/enlighten.c         |    8 
 arch/x86/xen/mmu.c               |   67 +++-----
 arch/x86/xen/mmu.h               |   26 ---
 include/asm-x86/page.h           |   49 ++++-
 include/asm-x86/page_32.h        |   77 +++++----
 include/asm-x86/page_64.h        |   37 +---
 include/asm-x86/paravirt.h       |  324 ++++++++++++++++-----------------------
 include/asm-x86/pgtable-2level.h |   21 --
 include/asm-x86/pgtable-3level.h |   40 ----
 include/asm-x86/pgtable.h        |  318 ++++++++++++++++++++++++++++++++++++++
 include/asm-x86/pgtable_32.h     |  204 ------------------------
 include/asm-x86/pgtable_64.h     |  234 ----------------------------
 14 files changed, 630 insertions(+), 809 deletions(-)

(The code formatting patch adds a pile of lines because it splits long
single lints into multiline code.)

	J
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