Re: [Patch v2 1/2] mm/mm_init.c: use memblock_region_memory_base_pfn() to get startpfn

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On Fri, May 24, 2024 at 01:19:13AM +0000, Wei Yang wrote:
> Just like what it does in "if (mirrored_kernelcore)", we should use
> memblock_region_memory_base_pfn() to get the startpfn.
> 
> Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
> ---
>  include/linux/memblock.h | 2 +-
>  mm/mm_init.c             | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/memblock.h b/include/linux/memblock.h
> index e2082240586d..6cf18dc2b4d0 100644
> --- a/include/linux/memblock.h
> +++ b/include/linux/memblock.h
> @@ -565,7 +565,7 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
>  }
>  
>  /**
> - * for_each_mem_region - itereate over memory regions
> + * for_each_mem_region - iterate over memory regions

Sorry I've missed this in v1, but it should be a separate patch

>   * @region: loop variable
>   */
>  #define for_each_mem_region(region)					\
> diff --git a/mm/mm_init.c b/mm/mm_init.c
> index f72b852bd5b8..2dfb87841fdb 100644
> --- a/mm/mm_init.c
> +++ b/mm/mm_init.c
> @@ -363,7 +363,7 @@ static void __init find_zone_movable_pfns_for_nodes(void)
>  
>  			nid = memblock_get_region_node(r);
>  
> -			usable_startpfn = PFN_DOWN(r->base);
> +			usable_startpfn = memblock_region_memory_base_pfn(r);
>  			zone_movable_pfn[nid] = zone_movable_pfn[nid] ?
>  				min(usable_startpfn, zone_movable_pfn[nid]) :
>  				usable_startpfn;
> -- 
> 2.34.1
> 

-- 
Sincerely yours,
Mike.




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