Re: [PATCHv4 27/39] x86-64, mm: proper alignment mappings with hugepages

[Dave Hansen]

On 05/11/2013 06:23 PM, Kirill A. Shutemov wrote:
> +static inline unsigned long mapping_align_mask(struct address_space *mapping)
> +{
> +	if (mapping_can_have_hugepages(mapping))
> +		return PAGE_MASK & ~HPAGE_MASK;
> +	return get_align_mask();
> +}

get_align_mask() appears to be a bit more complicated to me than just a
plain old mask.  Are you sure you don't need to pick up any of its
behavior for the mapping_can_have_hugepages() case?
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