Re: [PATCH 1/3] mm: introduce mm_[p4d|pud|pmd]_folded

[Kirill A. Shutemov]

On Wed, Oct 31, 2018 at 10:35:36AM +0100, Martin Schwidefsky wrote:
> > Maybe
> > 	return __is_defined(__PAGETABLE_P4D_FOLDED);
> > 
> > ?
>  
> I have tried that, doesn't work. The reason is that the
> __PAGETABLE_xxx_FOLDED defines to not have a value.
> 
> #define __PAGETABLE_P4D_FOLDED
> #define __PAGETABLE_PMD_FOLDED
> #define __PAGETABLE_PUD_FOLDED
> 
> While the definition of CONFIG_xxx symbols looks like this
> 
> #define CONFIG_xxx 1
> 
> The __is_defined needs the value for the __take_second_arg trick.

I guess this is easily fixable :)

-- 
 Kirill A. Shutemov