linux-kernel - Re: [PATCH 4/5] mm/mseal: separate out and simplify VMA gap check

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Message-ID: <88ad463c-b5a1-431a-9a0e-ed7e39e86c18@redhat.com>
Date: Mon, 14 Jul 2025 16:41:54 +0200
From: David Hildenbrand <david@...hat.com>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: "Liam R . Howlett" <Liam.Howlett@...cle.com>,
 Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>,
 Pedro Falcato <pfalcato@...e.de>, linux-mm@...ck.org,
 linux-kernel@...r.kernel.org, Jeff Xu <jeffxu@...omium.org>
Subject: Re: [PATCH 4/5] mm/mseal: separate out and simplify VMA gap check

On 14.07.25 15:00, Lorenzo Stoakes wrote:
> The check_mm_seal() function is doing something general - checking whether
> a range contains only VMAs (or rather that it does NOT contain any unmapped
> regions).
> 
> Generalise this and put the logic in mm/vma.c - introducing
> range_contains_unmapped(). Additionally we can simplify the logic, we are
> simply checking whether the last vma->vm_end has either a VMA starting
> after it or ends before the end parameter.
> 
> No functional change intended.
> 
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
> ---

Acked-by: David Hildenbrand <david@...hat.com>

-- 
Cheers,

David / dhildenb