Re: [PATCH 2/2] mm/page_alloc: use get_pfnblock_migratetype to avoid extra page_to_pfn

[Johannes Weiner]

On Fri, Aug 11, 2023 at 07:59:45PM +0800, Kemeng Shi wrote:
> We have get_pageblock_migratetype and get_pfnblock_migratetype to get
> migratetype of page. get_pfnblock_migratetype accepts both page and pfn
> from caller while get_pageblock_migratetype only accept page and get pfn
> with page_to_pfn from page.
> In case we already record pfn of page, we can simply call
> get_pfnblock_migratetype to avoid a page_to_pfn.
> 
> Signed-off-by: Kemeng Shi <shikemeng@xxxxxxxxxxxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>