linux-kernel - Re: [PATCH hotfix 6.12 3/8] mm: refactor map_deny_write

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Message-ID: <6b6fe750-4f59-446f-ad8c-71468e2d9a7a@suse.cz>
Date: Wed, 23 Oct 2024 11:57:22 +0200
From: Vlastimil Babka <vbabka@...e.cz>
To: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 Andrew Morton <akpm@...ux-foundation.org>
Cc: "Liam R . Howlett" <Liam.Howlett@...cle.com>, Jann Horn
 <jannh@...gle.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 Linus Torvalds <torvalds@...ux-foundation.org>, Peter Xu <peterx@...hat.com>
Subject: Re: [PATCH hotfix 6.12 3/8] mm: refactor map_deny_write_exec()

On 10/22/24 22:40, Lorenzo Stoakes wrote:
> Refactor the map_deny_write_exec() to not unnecessarily require a VMA
> parameter but rather to accept VMA flags parameters, which allows us to use
> this function early in mmap_region() in a subsequent commit.
> 
> While we're here, we refactor the function to be more readable and add some
> additional documentation.
> 
> Reported-by: Jann Horn <jannh@...gle.com>
> Fixes: deb0f6562884 ("mm/mmap: undo ->mmap() when arch_validate_flags() fails")
> Cc: stable <stable@...nel.org>
> Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>

Reviewed-by: Vlastimil Babka <vbabka@...e.cz>