From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6E438C433EF for ; Tue, 5 Apr 2022 02:43:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230032AbiDECpI (ORCPT ); Mon, 4 Apr 2022 22:45:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230106AbiDECoZ (ORCPT ); Mon, 4 Apr 2022 22:44:25 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B53CDE997D for ; Mon, 4 Apr 2022 18:49:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1649123373; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lW39+rLF3iuwrcyWFAu8xWUbxamG/E8iQp/9Q8XMaVI=; b=HSNJ4zpHFUTSfB84BzQnpFbkRik8AKHp1Rv+joxbvHmigM1XyQQO592lbif9Wq1Bf2+7+v y7c3bnSjm/yJcu+GINPqU9GqPUbWKopAMy4kX3nxx1CaPdWHnv1wqc6PLpURrKqp72YeeT s4vcIAZF1leDWtXQkqsZNdA3sAP7evI= Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-308-Y-IEES_gM6KYpTvQFdtZLQ-1; Mon, 04 Apr 2022 21:49:33 -0400 X-MC-Unique: Y-IEES_gM6KYpTvQFdtZLQ-1 Received: by mail-io1-f70.google.com with SMTP id w28-20020a05660205dc00b00645d3cdb0f7so7424553iox.10 for ; Mon, 04 Apr 2022 18:49:32 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=lW39+rLF3iuwrcyWFAu8xWUbxamG/E8iQp/9Q8XMaVI=; b=a+mEN3d+Qfxg2vZBzLaSG0f11jxQp3Nm6qP3jgEgnd3KVWqRWkvqUUcV2q0WpkC5h1 aJ3M2uea9OCNEamVnCFJxT1Ir82UxX08mJBb8hD9odSHsCxHBSmz7FqjICBYwNqqfm+A woz7o5QJCOd+pP0Z82REc+TDojttEIIinQh841kkpA1qJAIO5ZqFJcWFv0g67euochvD 2sLEsCJFlGxWRbJHcsY5twjj6k/cqRG4wVod6vwJHB9w/CIY3mie+NRWphOVvuB4Xdqn GRC14hQUcf2PKF80yMRKeCh622TX5XHUbv/PX0WdiEx4/R9qSxBPhic7sxaWjtNk3ted Skog== X-Gm-Message-State: AOAM531vk4mjDOlLYQ75kCkPQ3mhPpAxO6AnX+12adwC0RReAy9sKBb6 fBC5MsPNFaRQPfE8q6FYuMrdlQTkPF1QGfDSWcaBRtDC9fhz1ZU86tSE4ajWIFGwZKtS4K8tQuk sOOoP4GI5xlU+abEs//2JgzF/HrdDg773AhSNr1pADjvc0IeBP56z4V3aLvZluPdDKPiK3JbHww == X-Received: by 2002:a6b:cd0c:0:b0:649:adb8:79eb with SMTP id d12-20020a6bcd0c000000b00649adb879ebmr582217iog.138.1649123372105; Mon, 04 Apr 2022 18:49:32 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwn1jD8bZrilkR6TJdV2+HFVoMQ6KZBMcYF9DIorLbsiTZnX9G3AePuh+OKuYEiS2DRPtH+RA== X-Received: by 2002:a6b:cd0c:0:b0:649:adb8:79eb with SMTP id d12-20020a6bcd0c000000b00649adb879ebmr582198iog.138.1649123371881; Mon, 04 Apr 2022 18:49:31 -0700 (PDT) Received: from localhost.localdomain (cpec09435e3e0ee-cmc09435e3e0ec.cpe.net.cable.rogers.com. [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 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