From: "David Hildenbrand (Arm)" <david@kernel.org>
To: Lorenzo Stoakes <ljs@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Liam R . Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>, Jann Horn <jannh@google.com>,
Pedro Falcato <pfalcato@suse.de>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v2 2/3] mm/vma: remove mmap_action->success_hook
Date: Mon, 1 Jun 2026 17:19:02 +0200 [thread overview]
Message-ID: <b3c8d59f-c1ac-405e-84f8-79ac626379ec@kernel.org> (raw)
In-Reply-To: <2521c19866f3f10f9085d094cc4f06769042be71.1779462249.git.ljs@kernel.org>
On 5/22/26 18:00, Lorenzo Stoakes wrote:
> This hook was introduced to work around code that seemed to absolutely
> require access to a VMA pointer upon mmap().
>
> However, providing this hook leaves a backdoor to drivers getting access to
> the very thing mmap_prepare eliminates - a pointer to the VMA.
Good!
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
--
Cheers,
David
next prev parent reply other threads:[~2026-06-01 15:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-22 16:00 [PATCH v2 0/3] remove mmap_action success, error hooks Lorenzo Stoakes
2026-05-22 16:00 ` [PATCH v2 1/3] drivers/char/mem: eliminate unnecessary use of success_hook Lorenzo Stoakes
2026-06-01 15:18 ` David Hildenbrand (Arm)
2026-05-22 16:00 ` [PATCH v2 2/3] mm/vma: remove mmap_action->success_hook Lorenzo Stoakes
2026-06-01 15:19 ` David Hildenbrand (Arm) [this message]
2026-05-22 16:00 ` [PATCH v2 3/3] mm/vma: eliminate mmap_action->error_hook, introduce error_filter Lorenzo Stoakes
2026-06-01 15:25 ` David Hildenbrand (Arm)
2026-06-01 15:46 ` Lorenzo Stoakes
2026-06-02 9:16 ` David Hildenbrand (Arm)
2026-06-02 10:07 ` Lorenzo Stoakes
2026-06-02 11:23 ` David Hildenbrand (Arm)
2026-06-02 11:28 ` Lorenzo Stoakes
2026-05-22 16:07 ` [PATCH v2 0/3] remove mmap_action success, error hooks Lorenzo Stoakes
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