On Fri, Jun 24, 2022 at 05:36:39PM +0000, James Houghton wrote: > +#ifdef CONFIG_HUGETLB_HIGH_GRANULARITY_MAPPING > +bool hugetlb_hgm_enabled(struct vm_area_struct *vma) > +{ > + /* All shared VMAs have HGM enabled. */ > + return vma->vm_flags & VM_SHARED; > +} > +#endif /* CONFIG_HUGETLB_HIGH_GRANULARITY_MAPPING */ Another nitpick: suggest to rename this to "hugetlb_***_supported()" (with whatever the new name could be..), as long as it cannot be "disabled". :) -- Peter Xu