Re: [PATCH 3/8] mm/bootmem_info: stop using PG_private

On Mon, May 11, 2026 at 04:05:31PM +0200, David Hildenbrand (Arm) wrote:
> Nobody checks PG_private for these pages, and we can happily use
> set_page_private() without setting PG_private. So let's just stop
> setting/clearing PG_private.
> 
> Signed-off-by: David Hildenbrand (Arm) <[email protected]>

Reviewed-by: Mike Rapoport (Microsoft) <[email protected]>

> ---
>  mm/bootmem_info.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/mm/bootmem_info.c b/mm/bootmem_info.c
> index a0a1ecdec8d0..6e2aaab3dca9 100644
> --- a/mm/bootmem_info.c
> +++ b/mm/bootmem_info.c
> @@ -19,7 +19,6 @@ void get_page_bootmem(unsigned long info, struct page *page,
>  {
>  	BUG_ON(type > 0xf);
>  	BUG_ON(info > (ULONG_MAX >> 4));
> -	SetPagePrivate(page);
>  	set_page_private(page, info << 4 | type);
>  	page_ref_inc(page);
>  }
> @@ -32,7 +31,6 @@ void put_page_bootmem(struct page *page)
>  	       type > MEMORY_HOTPLUG_MAX_BOOTMEM_TYPE);
>  
>  	if (page_ref_dec_return(page) == 1) {
> -		ClearPagePrivate(page);
>  		set_page_private(page, 0);
>  		kmemleak_free_part_phys(PFN_PHYS(page_to_pfn(page)), PAGE_SIZE);
>  		free_reserved_page(page);
> 
> -- 
> 2.43.0
> 

-- 
Sincerely yours,
Mike.