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    Subject[RFC][PATCH 1/9] pfn_to_kaddr() for UML

    Update UML with a proper 'pfn_to_kaddr()' definition, the VM deadlock
    avoidance framework uses it.

    Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
    Signed-off-by: Daniel Phillips <phillips@google.com>

    ---
    include/asm-um/page.h | 2 ++
    1 file changed, 2 insertions(+)

    Index: linux-2.6/include/asm-um/page.h
    ===================================================================
    --- linux-2.6.orig/include/asm-um/page.h
    +++ linux-2.6/include/asm-um/page.h
    @@ -111,6 +111,8 @@ extern unsigned long uml_physmem;
    #define pfn_valid(pfn) ((pfn) < max_mapnr)
    #define virt_addr_valid(v) pfn_valid(phys_to_pfn(__pa(v)))

    +#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT)
    +
    extern struct page *arch_validate(struct page *page, gfp_t mask, int order);
    #define HAVE_ARCH_VALIDATE

    -
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