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[99.241.198.116]) by smtp.gmail.com with ESMTPSA id b11-20020a92c56b000000b002c76a618f52sm6657231ilj.63.2022.04.04.18.49.30 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Mon, 04 Apr 2022 18:49:31 -0700 (PDT) From: Peter Xu To: linux-kernel@vger.kernel.org, linux-mm@kvack.org Cc: Mike Kravetz , Nadav Amit , Matthew Wilcox , Mike Rapoport , David Hildenbrand , Hugh Dickins , Jerome Glisse , "Kirill A . Shutemov" , Andrea Arcangeli , Andrew Morton , Axel Rasmussen , Alistair Popple , peterx@redhat.com Subject: [PATCH v8 22/23] mm: Enable PTE markers by default Date: Mon, 4 Apr 2022 21:49:29 -0400 Message-Id: <20220405014929.15158-1-peterx@redhat.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220405014646.13522-1-peterx@redhat.com> References: <20220405014646.13522-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Enable PTE markers by default. On x86_64 it means it'll auto-enable PTE_MARKER_UFFD_WP as well. Signed-off-by: Peter Xu --- mm/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/Kconfig b/mm/Kconfig index 6e7c2d59fa96..3eca34c864c5 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -911,12 +911,14 @@ config ANON_VMA_NAME config PTE_MARKER bool "Marker PTEs support" + default y help Allows to create marker PTEs for file-backed memory. config PTE_MARKER_UFFD_WP bool "Marker PTEs support for userfaultfd write protection" + default y depends on PTE_MARKER && HAVE_ARCH_USERFAULTFD_WP help -- 2.32.0