Re: [PATCH v2 4/7] mm/khugepaged: fix outdated comments

[David Hildenbrand (Arm)]

>  	 * UFFDIO_MOVE is prevented to race as well thanks to the
>  	 * mmap_lock.
> @@ -1643,7 +1643,8 @@ static enum scan_result collapse_scan_pmd(struct mm_struct *mm,
>  
>  	/*
>  	 * If PMD is the only enabled order, enforce max_ptes_none, otherwise
> -	 * scan all pages to populate the bitmap for mTHP collapse.
> +	 * scan all pages to populate the bitmap for mTHP collapse. The bitmap
> +	 * is then checked again in mthp_collapse() for each attempted order.

Why use () here but not in the other cases above? (e.g., collapse_scan_pmd)

-- 
Cheers,

David