Re: [PATCH v3 6/6] mm/mm_init: add zone mismatch warning during page init

[Lance Yang]

On Tue, Sep 29, 2026 at 01:32:31PM +0800, Muchun Song wrote:
>For vmemmap-optimized sections, tail struct pages may be backed by
>shared vmemmap pages. Those shared pages must carry the same page zone
>ID as the struct pages initialized for the section.
>
>Warn in __init_single_page() if the shared tail page has a different
>page_zone_id(), which would indicate inconsistent initialization.
>
>Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx>
>Acked-by: Qi Zheng <qi.zheng@xxxxxxxxx>
>---

Useful sanity check :) Feel free to add:

Reviewed-by: Lance Yang <lance.yang@xxxxxxxxx>