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Wed, 24 Jul 2024 13:23:27 -0700 (PDT) MIME-Version: 1.0 References: <20240717200709.1552558-1-Liam.Howlett@oracle.com> <20240717200709.1552558-17-Liam.Howlett@oracle.com> In-Reply-To: <20240717200709.1552558-17-Liam.Howlett@oracle.com> From: Paul Moore Date: Wed, 24 Jul 2024 16:23:16 -0400 Message-ID: Subject: Re: [PATCH v5 16/21] mm/mmap: Use vms accounted pages in mmap_region() To: "Liam R. Howlett" Cc: linux-mm@kvack.org, Andrew Morton , Suren Baghdasaryan , Vlastimil Babka , Lorenzo Stoakes , Matthew Wilcox , sidhartha.kumar@oracle.com, "Paul E . McKenney" , Bert Karwatzki , Jiri Olsa , linux-kernel@vger.kernel.org, Kees Cook , Jeff Xu , linux-security-module@vger.kernel.org, Lorenzo Stoakes Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Rspam-User: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 61F5E180010 X-Stat-Signature: jdnx15h1sb3peu813zwch6nuu7h8rpcn X-HE-Tag: 1721852608-502535 X-HE-Meta: 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 cmuFfaji Mzzhdc92I+S317UgS73G7iOfcivikxR8nz6ySGQIUQNKp758ZQQN4a8nifb6VnUMPTozkjZHk5dTziQ5NaeYOFO7I7Xaag/OsrMtxlwdvCulJqKdXPq7X0AFPXLeIMu94QSckOdQIBjU6IVxQDOLX3IxghYW2NIjwC+Lafy78jYh1BVTgG+D/MmA789mTKZsrJ8vEEiqw24r4M1xXe9Y6lJ6YIrQC2OGb2XsxT1MhpPN19133epF9m8FDdBYFDwYvl81knO4ccQtsPrmRQ9xEObIwux4IoZEXFwnaf2HrZXKUgm2qBaguL2KH2lKGjhNKOotyIM0BXUxmRWDMOiTNc6NFdjsKK7HL5QMs2R/be1mH0xp2zEjolA76hbjUNE/kf5o+mQkxK2jYzS/gBwOG6AFBbwUAoKWrLd5SxHk8Qa5jrx1pn0eMdh+VeeDkvkgBagGu X-Bogosity: Ham, tests=bogofilter, spamicity=0.004433, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Jul 17, 2024 at 4:11=E2=80=AFPM Liam R. Howlett wrote: > > From: "Liam R. Howlett" > > 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 > Cc: Kees Cook > Cc: linux-security-module@vger.kernel.org > Reviewed-by: Kees Cook > Reviewed-by: Lorenzo Stoakes > Reviewed-by: Suren Baghdasaryan > --- > mm/mmap.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) Acked-by: Paul Moore (LSM) --=20 paul-moore.com