linux-kernel - Re: [PATCH v5 16/21] mm/mmap: Use vms accounted pages in mmap

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Message-ID: <CAHC9VhQHQ8aWu_eYDXqmMrPkUCd=KV9MV7WbjOtSMCa1GjfGBQ@mail.gmail.com>
Date: Wed, 24 Jul 2024 16:23:16 -0400
From: Paul Moore <paul@...l-moore.com>
To: "Liam R. Howlett" <Liam.Howlett@...cle.com>
Cc: linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>, 
	Suren Baghdasaryan <surenb@...gle.com>, Vlastimil Babka <vbabka@...e.cz>, Lorenzo Stoakes <lstoakes@...il.com>, 
	Matthew Wilcox <willy@...radead.org>, sidhartha.kumar@...cle.com, 
	"Paul E . McKenney" <paulmck@...nel.org>, Bert Karwatzki <spasswolf@....de>, Jiri Olsa <olsajiri@...il.com>, 
	linux-kernel@...r.kernel.org, Kees Cook <kees@...nel.org>, 
	Jeff Xu <jeffxu@...omium.org>, linux-security-module@...r.kernel.org, 
	Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
Subject: Re: [PATCH v5 16/21] mm/mmap: Use vms accounted pages in mmap_region()

On Wed, Jul 17, 2024 at 4:11 PM Liam R. Howlett <Liam.Howlett@...cle.com> wrote:
>
> From: "Liam R. Howlett" <Liam.Howlett@...cle.com>
>
> Change from nr_pages variable to vms.nr_accounted for the charged pages
> calculation.  This is necessary for a future patch.
>
> This also avoids checking security_vm_enough_memory_mm() if the amount
> of memory won't change.
>
> Signed-off-by: Liam R. Howlett <Liam.Howlett@...cle.com>
> Cc: Kees Cook <kees@...nel.org>
> Cc: linux-security-module@...r.kernel.org
> Reviewed-by: Kees Cook <kees@...nel.org>
> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@...cle.com>
> Reviewed-by: Suren Baghdasaryan <surenb@...gle.com>
> ---
>  mm/mmap.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)

Acked-by: Paul Moore <paul@...l-moore.com> (LSM)

-- 
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