Subject: Re: [PATCH] arm64/mm: Drop HAVE_ARCH_PFN_VALID

From: Catalin Marinas <[email-masked]>
Date: Thu, 27 May 2021 18:49:13 +0100

On Tue, May 25, 2021 at 06:25:49PM +0530, Anshuman Khandual wrote:
> CONFIG_SPARSEMEM_VMEMMAP is now the only available memory model on arm64
> platforms and free_unused_memmap() would just return without creating any
> holes in the memmap mapping. There is no need for any special handling in
> pfn_valid() and HAVE_ARCH_PFN_VALID can just be dropped. This also moves
> the pfn upper bits sanity check into generic pfn_valid().
> 
> Cc: Catalin Marinas <[email-masked]>
> Cc: Will Deacon <[email-masked]>
> Cc: Andrew Morton <[email-masked]>
> Cc: David Hildenbrand <[email-masked]>
> Cc: Mike Rapoport <[email-masked]>
> Cc: [email-masked]
> Cc: [email-masked]
> Cc: [email-masked]
> Acked-by: Mike Rapoport <[email-masked]>
> Acked-by: David Hildenbrand <[email-masked]>
> Signed-off-by: Anshuman Khandual <[email-masked]>

Acked-by: Catalin Marinas <[email-masked]>

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