Re: [PATCH V9] mm/debug: Add tests validating architecture page table helpers

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* Anshuman Khandual <anshuman.khandual@xxxxxxx> wrote:

> +	bool "Debug arch page table for semantics compliance"
> +	depends on MMU
> +	depends on DEBUG_VM
> +	help
> +	  This option provides a debug method which can be used to test
> +	  architecture page table helper functions on various platforms in
> +	  verifying if they comply with expected generic MM semantics. This
> +	  will help architecture code in making sure that any changes or
> +	  new additions of these helpers still conform to expected
> +	  semantics of the generic MM.
> +
> +	  If unsure, say N.

Since CONFIG_DEBUG_VM is generally disabled in distro kernel packages, 
why not make this 'default y' to maximize testing coverage? The code size 
increase should be minimal, and DEBUG_VM increases size anyway.

Other than that this looks good to me:

  Reviewed-by: Ingo Molnar <mingo@xxxxxxxxxx>



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