On Tue, Mar 23, 2021 at 6:54 AM Miaohe Lin <[email protected]> wrote:
>
> It's guaranteed that in the 'else' case of the rc == MIGRATEPAGE_SUCCESS
> check, rc does not equal to MIGRATEPAGE_SUCCESS. Remove this unnecessary
> check.
Reviewed-by: Yang Shi <[email protected]>
>
> Reviewed-by: David Hildenbrand <[email protected]>
> Signed-off-by: Miaohe Lin <[email protected]>
> ---
> mm/migrate.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/migrate.c b/mm/migrate.c
> index facec65c7374..97da1fabdf72 100644
> --- a/mm/migrate.c
> +++ b/mm/migrate.c
> @@ -1374,7 +1374,7 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
> out:
> if (rc == MIGRATEPAGE_SUCCESS)
> putback_active_hugepage(hpage);
> - else if (rc != -EAGAIN && rc != MIGRATEPAGE_SUCCESS)
> + else if (rc != -EAGAIN)
> list_move_tail(&hpage->lru, ret);
>
> /*
> --
> 2.19.1
>