On Fri, Nov 06, 2015 at 05:37:07PM +0300, Vladimir Davydov wrote:
> diff --git a/mm/rmap.c b/mm/rmap.c
> index 0837487d3737..7ac775e41820 100644
> --- a/mm/rmap.c
> +++ b/mm/rmap.c
> @@ -796,48 +796,43 @@ int page_mapped_in_vma(struct page *page, struct vm_area_struct *vma)
> return 1;
> }
>
> -struct page_referenced_arg {
> - int mapcount;
> - int referenced;
> - unsigned long vm_flags;
> - struct mem_cgroup *memcg;
> -};
> /*
> - * arg: page_referenced_arg will be passed
> + * Check that @page is mapped at @address into @mm. In contrast to
> + * page_check_address(), this function can handle transparent huge pages.
> + *
> + * On success returns true with pte mapped and locked. For transparent huge
> + * pages *@ptep is set to NULL.
I think
"For PMD-mapped transparent huge pages"...
would be more correct.
Otherwise looks great!
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
--
Kirill A. Shutemov
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