On Thu, Aug 5, 2021 at 8:06 AM Baolin Wang
<baolin.wang@xxxxxxxxxxxxxxxxx> wrote:
>
> since commit a98a2f0c8ce1 ("mm/rmap: split migration into its own function"),
> the migration ptes establishment has been split into a separate
> try_to_migrate() function, thus update the related comments.
>
> Signed-off-by: Baolin Wang <baolin.wang@xxxxxxxxxxxxxxxxx>
Reviewed-by: Yang Shi <shy828301@xxxxxxxxx>
> ---
> mm/migrate.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/migrate.c b/mm/migrate.c
> index eeba4c6..6f048a8 100644
> --- a/mm/migrate.c
> +++ b/mm/migrate.c
> @@ -1005,7 +1005,7 @@ static int __unmap_and_move(struct page *page, struct page *newpage,
> }
>
> /*
> - * By try_to_unmap(), page->mapcount goes down to 0 here. In this case,
> + * By try_to_migrate(), page->mapcount goes down to 0 here. In this case,
> * we cannot notice that anon_vma is freed while we migrates a page.
> * This get_anon_vma() delays freeing anon_vma pointer until the end
> * of migration. File cache pages are no problem because of page_lock()
> --
> 1.8.3.1
>
>
