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[85.23.51.1]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5b2e23c46c4sm2311351e87.17.2026.08.03.21.26.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Aug 2026 21:26:48 -0700 (PDT) From: mpenttil@redhat.com To: linux-mm@kvack.org Cc: dri-devel@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Mika=20Penttil=C3=A4?= , David Hildenbrand , Jason Gunthorpe , Leon Romanovsky , Alistair Popple , Balbir Singh , Zi Yan , Matthew Brost , Andrew Morton , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Subject: [PATCH v13 01/11] mm/Kconfig: changes for migrate on fault for device pages Date: Tue, 4 Aug 2026 07:26:21 +0300 Message-ID: <20260804042631.2175585-2-mpenttil@redhat.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260804042631.2175585-1-mpenttil@redhat.com> References: <20260804042631.2175585-1-mpenttil@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 8uYRkRVCX-zdytfjd_-yvslKhDONLHzM_6i7pW5zppY_1785817611 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Stat-Signature: epzeqccd5xpz4geksy4931brtxjt64cm X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 3215A140007 X-Rspam-User: X-HE-Tag: 1785817614-972389 X-HE-Meta: U2FsdGVkX1+WNva79gO0Td35k5OWgQnKubvpeN7xxY1Qd+ZlxSjCiXm8TrWrnzYImFBbfE0JbLwchkteJgvxs0itArx+U8Nef5Oz1LCjDh/L+YAXJhNdet34RwpzYU/ELP01j6e9geK9G2zUCAq5hfkxMQmq3mBMxyjmTmdY4IIhvxQLcM8tny9HR3SKPoVhN31PeObjgvK6zGtNu1MSIiz7wJFfN7Yku7P9p1w1cYuCkHyTsFGLmuaMin2CJOMOS6vFUjbNFQUNcRUzGeLcKUMx6KEwUWChrxPe4TkL9x/BoKGa6k3VQj9QkR0S2vkJgFYPw6dHXyxPEhh8IWyrsK1fsD5xWUCC7+5I+GxheMQ4Yxyp41xarNHF9oi7JSNPXIb39zFT0raEAp4c+LM2nlf45pE+EO8fWUpxqOdDq5JhWbhfndCviwqdz8IQcGH8C4CFjfFDfWLf5PmUjeaGD0YtV/kS3H/gXQqkpyOpBkydBbtxuHeqXVI1r7UrtmOiGaV6ohuBGzX2SuCyJUkE56RZh+UPZP9H0Kv9Vu2l9IC3RjCyrpxDIbIX7ceXU7gQXeB/0/BhvY6luPVV6vgREFoXTE+ioWIAOmyWS8n0oCeZDYsPffljH7MJ3K8znlQxbVW3SQFDiuE0MdmFkCUET28G16WUerWdgVT4rErgqOJNGKlJJmQJMCMUNaid5pAkTrRB7hR1aWs+Se/Ek+/Yx3K01RjLRhO4d7xuWvo57yv6iohd2yPSnkRW+kzuFYwGo6CzH6zMoNPqSzK86kpsAMlh6o/Ju6V1nRqnFBXdqmq2eJ6ffJeXoeV3+stz5RBLJm1JNm1iIGAwGgb6j4Vty1awiaIIYVqGgDCcKYQcbdI2HcxmsuGR9M7CcKpRQTtCrVs3ZF3/9cuL4bED+sj01AN2sY9oTc7aI52ReO+w7EeNoQ8MtMWTx36+e7yN3kXSQyQ85oQ+824/PJZtTlc pjKMP1u9 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 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: From: Mika Penttilä HMM depends on MMU notifiers. With the unified HMM/migrate_device page table walk migrate_device needs HMM enabled. Enable them explicitly to avoid breaking random configs. Cc: Andrew Morton Cc: David Hildenbrand Cc: Lorenzo Stoakes Cc: "Liam R. Howlett" Cc: Vlastimil Babka Cc: Mike Rapoport Cc: Suren Baghdasaryan Cc: Michal Hocko Signed-off-by: Mika Penttilä Acked-by: David Hildenbrand (Arm) --- mm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/Kconfig b/mm/Kconfig index 9e0ca4824905..7647671f37f0 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -699,6 +699,7 @@ config MIGRATION config DEVICE_MIGRATION def_bool MIGRATION && ZONE_DEVICE + select HMM_MIRROR config ARCH_ENABLE_HUGEPAGE_MIGRATION bool @@ -1260,6 +1261,7 @@ config ZONE_DEVICE config HMM_MIRROR bool depends on MMU + select MMU_NOTIFIER config GET_FREE_REGION bool -- 2.55.0