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From: David Hildenbrand <david@redhat.com>
To: Oscar Salvador <osalvador@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>
Cc: Muchun Song <muchun.song@linux.dev>,
	James Houghton <jthoughton@google.com>,
	Peter Xu <peterx@redhat.com>, Gavin Guo <gavinguo@igalia.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] mm,hugetlb: Conver anon_rmap into boolean
Date: Fri, 13 Jun 2025 15:48:10 +0200	[thread overview]
Message-ID: <01f0f47e-1992-4991-b11d-c3d51b470da0@redhat.com> (raw)
In-Reply-To: <20250612134701.377855-4-osalvador@suse.de>

On 12.06.25 15:46, Oscar Salvador wrote:
> We use anon_rmap as a boolean, so declare it as that.
> 
> Signed-off-by: Oscar Salvador <osalvador@suse.de>
> ---
>   mm/hugetlb.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/mm/hugetlb.c b/mm/hugetlb.c
> index dfa09fc3b2c6..62bc3808f99e 100644
> --- a/mm/hugetlb.c
> +++ b/mm/hugetlb.c
> @@ -6431,7 +6431,7 @@ static vm_fault_t hugetlb_no_page(struct address_space *mapping,
>   	struct mm_struct *mm = vma->vm_mm;
>   	struct hstate *h = hstate_vma(vma);
>   	vm_fault_t ret = VM_FAULT_SIGBUS;
> -	int anon_rmap = 0;
> +	bool anon_rmap = false;
>   	unsigned long size;
>   	struct folio *folio;
>   	pte_t new_pte;
> @@ -6542,7 +6542,7 @@ static vm_fault_t hugetlb_no_page(struct address_space *mapping,
>   			 * check whether we can re-use this page exclusively for us.
>   			 */
>   			folio_lock(folio);
> -			anon_rmap = 1;
> +			anon_rmap = true;
>   		}
>   	} else {
>   		/*

While at it, I would rename that to "new_anon_folio" or sth like that.

It's used to distinguish whether we create an anon or a file folio.

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 
Cheers,

David / dhildenb


  reply	other threads:[~2025-06-13 13:48 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-12 13:46 [PATCH 0/5] Misc rework on hugetlb_fault Oscar Salvador
2025-06-12 13:46 ` [PATCH 1/5] mm,hugetlb: Change mechanism to detect a COW on private mapping Oscar Salvador
2025-06-13 13:52   ` David Hildenbrand
2025-06-12 13:46 ` [PATCH 2/5] mm,hugetlb: Document the reason to lock the folio in the faulting path Oscar Salvador
2025-06-13 13:56   ` David Hildenbrand
2025-06-13 14:23     ` Oscar Salvador
2025-06-13 19:57       ` David Hildenbrand
2025-06-13 21:47         ` Oscar Salvador
2025-06-14  9:07           ` Oscar Salvador
2025-06-16  9:22             ` David Hildenbrand
2025-06-16 14:10               ` Oscar Salvador
2025-06-16 14:41                 ` David Hildenbrand
2025-06-17 10:03                   ` Oscar Salvador
2025-06-17 11:27                     ` David Hildenbrand
2025-06-17 12:04                       ` Oscar Salvador
2025-06-17 12:08                         ` David Hildenbrand
2025-06-17 12:10                           ` Oscar Salvador
2025-06-17 12:50                             ` Oscar Salvador
2025-06-17 13:42                               ` David Hildenbrand
2025-06-17 14:00                                 ` Oscar Salvador
2025-06-19 11:52                                 ` Oscar Salvador
2025-06-12 13:46 ` [PATCH 3/5] mm,hugetlb: Conver anon_rmap into boolean Oscar Salvador
2025-06-13 13:48   ` David Hildenbrand [this message]
2025-06-12 13:47 ` [PATCH 4/5] mm,hugetlb: Drop obsolete comment about non-present pte and second faults Oscar Salvador
2025-06-12 13:47 ` [PATCH 5/5] mm,hugetlb: Drop unlikelys from hugetlb_fault Oscar Salvador
2025-06-13  8:55 ` [PATCH 0/5] Misc rework on hugetlb_fault Oscar Salvador

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