Re: [PATCH v3 0/2] promote mapped executable folios after first usage for MGLRU

[Axel Rasmussen]

On Fri, Jul 17, 2026 at 3:06 AM Baolin Wang
<baolin.wang@xxxxxxxxxxxxxxxxx> wrote:
>
> Now MGLRU's protection of mapped executable file folios is less reliable.
> Follow the classical LRU's logic, promoting mapped executable file folios
> after their first usage to give executable code a better chance to stay in
> memory and improve workload performance (See patch 2 for more details).

Both patches look correct to me, and the premise of the functional
change makes sense. For what it's worth feel free to take (on both):

Reviewed-by: Axel Rasmussen <axelrasmussen@xxxxxxxxxx>

>
> Changes from v2:
> https://lore.kernel.org/all/cover.1784197559.git.baolin.wang@xxxxxxxxxxxxxxxxx/
>  - Add acked tag from David. Thanks.
>  - Rename the exec-file-folio helper and move it into vmscan.c (per David).
>
> Changes from v1:
> https://lore.kernel.org/all/4b921ed528c483e13c9e22d1ae44ba58b4a15b0b.1784096432.git.baolin.wang@xxxxxxxxxxxxxxxxx/
>  - Add a new patch to clean up vma flags as preparation.
>  - Add a new helper to check exec file folios (per Kaisui).
>  - Promote exec file folios in lru_gen_set_refs (Per Sashiko).
>
> Baolin Wang (2):
>   mm: vmscan: convert folio_referenced() to use vma_flags_t
>   mm: mglru: promote mapped executable folios after first usage
>
>  include/linux/rmap.h |  7 +++---
>  mm/rmap.c            | 19 ++++++++-------
>  mm/vmscan.c          | 57 ++++++++++++++++++++++++++++----------------
>  3 files changed, 50 insertions(+), 33 deletions(-)
>
> --
> 2.47.3
>