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Howlett" , Nico Pache , Ryan Roberts , Dev Jain , Barry Song , Lance Yang , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Shuah Khan , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org Subject: [PATCH 7.2 v3 05/12] mm: remove READ_ONLY_THP_FOR_FS Kconfig option Date: Fri, 17 Apr 2026 22:44:22 -0400 Message-ID: <20260418024429.4055056-6-ziy@nvidia.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260418024429.4055056-1-ziy@nvidia.com> References: <20260418024429.4055056-1-ziy@nvidia.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: BL1PR13CA0164.namprd13.prod.outlook.com (2603:10b6:208:2bd::19) To DS7PR12MB9473.namprd12.prod.outlook.com (2603:10b6:8:252::5) Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS7PR12MB9473:EE_|IA1PR12MB6650:EE_ X-MS-Office365-Filtering-Correlation-Id: 8bc8c5cd-a318-4001-596e-08de9cf46fe1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|366016|1800799024|22082099003|18002099003|56012099003; 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Remove the Kconfig first so that no one can use READ_ONLY_THP_FOR_FS as upcoming commits remove mapping->nr_thps, which its safe guard mechanism relies on. Signed-off-by: Zi Yan Reviewed-by: Lorenzo Stoakes (Oracle) Acked-by: David Hildenbrand (Arm) Reviewed-by: Baolin Wang --- mm/Kconfig | 11 ----------- 1 file changed, 11 deletions(-) diff --git a/mm/Kconfig b/mm/Kconfig index bd283958d675..408fc7b82233 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -937,17 +937,6 @@ config THP_SWAP For selection by architectures with reasonable THP sizes. -config READ_ONLY_THP_FOR_FS - bool "Read-only THP for filesystems (EXPERIMENTAL)" - depends on TRANSPARENT_HUGEPAGE - - help - Allow khugepaged to put read-only file-backed pages in THP. - - This is marked experimental because it is a new feature. Write - support of file THPs will be developed in the next few release - cycles. - config NO_PAGE_MAPCOUNT bool "No per-page mapcount (EXPERIMENTAL)" help -- 2.43.0