Re: [PATCHv3 01/17] mm: add missing __PAGETABLE_{PUD,PMD}_FOLDED defines

[Aaro Koskinen]

Hi,

On Thu, Feb 26, 2015 at 01:35:04PM +0200, Kirill A. Shutemov wrote:
> Core mm expects __PAGETABLE_{PUD,PMD}_FOLDED to be defined if these page
> table levels folded. Usually, these defines are provided by
> <asm-generic/pgtable-nopmd.h> and <asm-generic/pgtable-nopud.h>.
> 
> But some architectures fold page table levels in a custom way. They need
> to define these macros themself. This patch adds missing defines.
> 
> The patch fixes mm->nr_pmds underflow and eliminates dead __pmd_alloc()
> and __pud_alloc() on architectures without these page table levels.
> 
> Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Cc: Aaro Koskinen <aaro.koskinen@xxxxxx>

PA-RISC change:

Tested-by: Aaro Koskinen <aaro.koskinen@xxxxxx>

A.
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