Re: [PATCH] ksm: update comments and docs to reference folio->mapping

> The KSM code already stores and checks the stable node key via
> folio->mapping, but the comment in ksm_get_folio() and the reverse
> mapping documentation in ksm.rst still refer to page->mapping.
>
> This is a pure wording update to match the folio-based implementation.
> No functional change is intended.
> 
> Signed-off-by: Hongfu Li <[email protected]>
> ---
> Documentation/mm/ksm.rst                    | 4 ++--
> Documentation/translations/zh_CN/mm/ksm.rst | 4 ++--
> mm/ksm.c                                    | 7 +++----
> 3 files changed, 7 insertions(+), 8 deletions(-)

Reviewed-by: Xu Xin <[email protected]>