Re: [PATCH v2 2/2] mm/page_ext: remove pgdat_page_ext_init()

[Zi Yan]

On Tue Aug 4, 2026 at 11:11 AM EDT, Sang-Heon Jeon wrote:
> pgdat_page_ext_init() sets pgdat->node_page_ext to NULL only on
> FLATMEM. FLATMEM depends on !NUMA, so the pgdat is always the
> zero-initialized contig_page_data and the store has no effect.
>
> So remove the call site, the unused function and its declaration.
>
> No functional change.
>
> Signed-off-by: Sang-Heon Jeon <ekffu200098@xxxxxxxxx>
> ---
>  include/linux/page_ext.h | 5 -----
>  mm/mm_init.c             | 1 -
>  mm/page_ext.c            | 9 ---------
>  3 files changed, 15 deletions(-)
>
LGTM.

Acked-by: Zi Yan <ziy@xxxxxxxxxx>

-- 
Best Regards,
Yan, Zi