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[85.23.51.1]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3936138935fsm37206141fa.41.2026.05.04.22.17.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 May 2026 22:17:57 -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 v9 1/5] mm/Kconfig: changes for migrate on fault for device pages Date: Tue, 5 May 2026 08:16:54 +0300 Message-ID: <20260505051658.2219537-2-mpenttil@redhat.com> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20260505051658.2219537-1-mpenttil@redhat.com> References: <20260505051658.2219537-1-mpenttil@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: sE9kyRKBhNB5Kvo5lABPB9DUycwPYrRtg2gC8QAbg9A_1777958279 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Stat-Signature: phsndk9mii6whamehkqi7e39ox3xuo8z X-Rspam-User: X-Rspamd-Queue-Id: 8266840003 X-Rspamd-Server: rspam07 X-HE-Tag: 1777958282-905971 X-HE-Meta: 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 gQFXT4ZY gmzYzE7afM4lVm7KtLSWVe2z3KUHOdcfzsU3kAW5HWT46ZXzAnUwxpooSHmzPIWhIfp6IWzQ2AlQNaxiMDYeoiBuoM26KtdIjjtmV38FKF1PE162+tgajH3teXTsjIdbSh1bLxTpF2iOTeVpOKywogRAxenlfocSn2y/JIKcNhc8o4UZTHwJnxiYdvVzqCt1OSFL+sdpO96VZlDByS2aisjwoGIOd83NK37706lHyss3kTaufB4WLbzwSBKl+pRLAMrmaYmojlnNnv6khiWEvSEkvJr+UBLts2JpNgXDke+0TWnu54k/mO1l57Hnfcp6YPDXUDQlqgTdSX1KWTaMydAQcVJ9G3BElxWP/0okxHjKxQsNmGXwDbOA0STPooPnJALXo6dNjoeZ4WFqn04/qRPLQ+RRkALPekhW9MC9cS5HZZHMrvmHSc89GthdrrLAFfM/J9N773sTU/a9tUZSXA4lBdSlYcTrJqGpSxfytuNRAsXFjFYHhR1MVe8CVRA1VB/rtnR+s0HM+Me7pCwaU4oB3qw== 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 e8bf1e9e6ad9..0d8db75ffc23 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -646,6 +646,7 @@ config MIGRATION config DEVICE_MIGRATION def_bool MIGRATION && ZONE_DEVICE + select HMM_MIRROR config ARCH_ENABLE_HUGEPAGE_MIGRATION bool @@ -1221,6 +1222,7 @@ config ZONE_DEVICE config HMM_MIRROR bool depends on MMU + select MMU_NOTIFIER config GET_FREE_REGION bool -- 2.50.0