[PATCH] ARM64: mm: Correct show_pte behaviour.

[Catalin Marinas]

On Fri, Apr 19, 2013 at 03:49:31PM +0100, Steve Capper wrote:
> show_pte makes use of the *_none_or_clear_bad style functions. If a
> pgd, pud or pmd is identified as being bad, it will then be cleared.
> 
> As show_pte appears to be called from either the user or kernel
> fault handlers this side effect can lead to unpredictable behaviour;
> especially as TLB entries are not invalidated.
> 
> This patch removes the page table sanitisation from show_pte. If a
> bad pgd, pud or pmd is encountered it is left unmodified.
> 
> Signed-off-by: Steve Capper <steve.capper at linaro.org>

Thanks. Applied.

-- 
Catalin