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Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] mm/khugepaged: use ALIGN helpers for PMD alignment Date: Wed, 08 Apr 2026 21:53:29 -0400 X-Mailer: MailMate (2.0r6290) Message-ID: <8A8072CF-4C70-4631-AEBD-296AB2258D75@nvidia.com> In-Reply-To: <20260409014323.2385982-1-ye.liu@linux.dev> References: <20260409014323.2385982-1-ye.liu@linux.dev> Content-Type: text/plain Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: BLAPR05CA0012.namprd05.prod.outlook.com (2603:10b6:208:36e::21) To DS7PR12MB9473.namprd12.prod.outlook.com (2603:10b6:8:252::5) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS7PR12MB9473:EE_|PH7PR12MB7818:EE_ X-MS-Office365-Filtering-Correlation-Id: 1d81a628-0951-4153-684f-08de95dace2c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: 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5VfXr8jqNZVRM+X6MsqYNQdSSIMkH67zkDSKJEcsUPt7/u6g0QGGla9yOru/93K+KRsFT/a2z6dU+e04qpgW5loXf/qUMMHiA5U1lJTJXMU8YqUPeCO9YqYokKZHJG3kSaBvy9hq8YWi9NkghIG1WSdFJxpXQqQ8cqUoRFxJSTIiIKHiARX4rmwisr6fls6MBh1FWbjUSS+n09b4Mg+6AQE1csG88TjSAk+cM3qOptBZ08Eocqm0z+WAhK5yoYo5W3r2d9ByanpW2DraYCz7HAfKS8ECbfMT4SIhiJdEtxmfnDnGzwo+ascuP4upSZ4QQfcgIOmWV514EsmXzF1e9U1tGv7vzYBmEt2bCohDnt7KdQ+POJutpCtiSExnmHrjJxOYq6AcsV/Dyz6/19zcXxqPGDnfv8L2iY5+T Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 8 Apr 2026, at 21:43, Ye Liu wrote: > From: Ye Liu > > PMD alignment in khugepaged is currently implemented using a mix of > rounding helpers and open-coded bitmask operations. > > Use ALIGN() and ALIGN_DOWN() consistently for PMD-sized address range > alignment, matching the preferred style for address and size handling. > > No functional change intended. > > Signed-off-by: Ye Liu > > Changes in v2: > - Switch to ALIGN()/ALIGN_DOWN() per David's suggestion. > - Also convert collapse_scan_mm_slot() to keep PMD alignment helpers > consistent within khugepaged. > - Update the changelog accordingly. > - Link to v1:https://lore.kernel.org/all/20260408093534.2373007-1-ye.li= u@linux.dev/ > --- > mm/khugepaged.c | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > LGTM. Reviewed-by: Zi Yan Best Regards, Yan, Zi