linux-kernel - Re: [PATCH v2 6/8] mm/huge_memory: remove stale NUMA hinting comment from follow_trans_huge

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Date:   Tue, 1 Aug 2023 12:07:20 -0400
From:   Peter Xu <peterx@...hat.com>
To:     David Hildenbrand <david@...hat.com>
Cc:     linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org, kvm@...r.kernel.org,
        linux-kselftest@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        liubo <liubo254@...wei.com>,
        Matthew Wilcox <willy@...radead.org>,
        Hugh Dickins <hughd@...gle.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        John Hubbard <jhubbard@...dia.com>,
        Mel Gorman <mgorman@...e.de>, Shuah Khan <shuah@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>
Subject: Re: [PATCH v2 6/8] mm/huge_memory: remove stale NUMA hinting comment
 from follow_trans_huge_pmd()

On Tue, Aug 01, 2023 at 02:48:42PM +0200, David Hildenbrand wrote:
> diff --git a/mm/huge_memory.c b/mm/huge_memory.c
> index 2cd3e5502180..0b709d2c46c6 100644
> --- a/mm/huge_memory.c
> +++ b/mm/huge_memory.c
> @@ -1467,7 +1467,6 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
>  	if ((flags & FOLL_DUMP) && is_huge_zero_pmd(*pmd))
>  		return ERR_PTR(-EFAULT);
>  
> -	/* Full NUMA hinting faults to serialise migration in fault paths */
>  	if (pmd_protnone(*pmd) && !gup_can_follow_protnone(vma, flags))
>  		return NULL;

Perhaps squashing into patch 1?  Thanks,

-- 
Peter Xu