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 5E44AC433F5 for ; Wed, 20 Apr 2022 15:32:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380227AbiDTPfP (ORCPT ); Wed, 20 Apr 2022 11:35:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1380196AbiDTPfM (ORCPT ); Wed, 20 Apr 2022 11:35:12 -0400 Received: from mail-qk1-x72e.google.com (mail-qk1-x72e.google.com [IPv6:2607:f8b0:4864:20::72e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 034963CA72 for ; Wed, 20 Apr 2022 08:32:26 -0700 (PDT) Received: by mail-qk1-x72e.google.com with SMTP id y129so1473625qkb.2 for ; Wed, 20 Apr 2022 08:32:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cmpxchg-org.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=L0g4XuTRG1BcMh3P4chNByt9PFI5OL5q3B7G+owBR8U=; b=FyeZeZSppgey1yzrOZBduf7WJjqMTN3eBIWg8pYNMvAs9tTOORR5hdc46LLBFm9yVI dip3ByXQKCtJSOzon2XjnEVpF9qA2zrV3gsT1gqCetYQfz8GnqiqmF4pXEvnBxoMN/18 uqCtX2TEgfSPJCONEWqCmNJ3b+JxscvzSSwjvpw8dxNbhR1kSk9zDkSxp4Cjt0SYi96Q EQkvFn7suyIaoXiDA6EStVPUtnAzUIbRr9wGoINlKuQIMbRDqCyWncR4KyS4q4NIMCHD RIjk6jhMit8jr7TCVELTMacuv5yq6YvUU3+ZQpiLHmK3bMPDlRn9AURlNTwyevbHlXMG j4qA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=L0g4XuTRG1BcMh3P4chNByt9PFI5OL5q3B7G+owBR8U=; b=PVxjsmoqx9B75mINObdxujNP8zPjI3oOUABbrHO89EquNG2FWQlcZF7OKrOgAWl4Gt dReIGRm2sCHH/XIMFULp9x4XdLJ6r/P8NqxzYfUfRIGF7oY8NCoJWGQmVpJhzpGniOBs uj7M+KOAWXAosMGQxmf1X1FWWqCSCXifzJDQBFvbpTiiaycLFqYqogmt68ZYIC2P6gnh +U9QrhENahMlMzLUc+xNEgBgLupTYZmEEsmdqIuSsJ2kxrxnK+PE+xWRb/rgGk2cKnOW 6Fyc+UktraoR/LEHMf/O6FQI97FPdBPqIhfeTQOH1WrAQCGxRmBpQqpTaENXRsco1Yqf ym6w== X-Gm-Message-State: AOAM531y4FnccXiFw2vFwetZQbCX2RvoSnbGMgh8bxSxXruI4WyzBG7Q 1fGqQoYqiHhDwsAVPuTqcjfrkg== X-Google-Smtp-Source: ABdhPJzk+XJXypkAQTD39I889slmS94qjjnFfomT/oy6p5fyHYoUrBLE/w2RoCzJsicuEbeUINctKQ== X-Received: by 2002:ae9:eb04:0:b0:69e:d174:fa97 with SMTP id b4-20020ae9eb04000000b0069ed174fa97mr3588295qkg.338.1650468744898; Wed, 20 Apr 2022 08:32:24 -0700 (PDT) Received: from localhost (cpe-98-15-154-102.hvc.res.rr.com. [98.15.154.102]) by smtp.gmail.com with ESMTPSA id y18-20020ac85f52000000b002ed08a7dc8dsm1923995qta.13.2022.04.20.08.32.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Apr 2022 08:32:24 -0700 (PDT) Date: Wed, 20 Apr 2022 11:32:23 -0400 From: Johannes Weiner To: Peter Xu Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Alistair Popple , Mike Kravetz , Nadav Amit , Axel Rasmussen , Andrea Arcangeli , Mike Rapoport , Andrew Morton Subject: Re: [PATCH] mm/uffd: Hide PTE_MARKER option Message-ID: References: <20220419202531.27415-1-peterx@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220419202531.27415-1-peterx@redhat.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 19, 2022 at 04:25:31PM -0400, Peter Xu wrote: > The PTE_MARKER option should not need to be exposed to the kernel builder, > keep it internal and remove the prompt so it won't be seen. > > Instead, make the PTE_MARKER_UFFD_WP option to explicitly choose PTE_MARKER > when necessary. > > While PTE_MARKER_UFFD_WP will still prompt to user, change the wording so > that it'll not mention PTE_MARKER at all but renaming it to "Userfaultfd > write protection support for shmem/hugetlbfs". > > Reported-by: Johannes Weiner > Signed-off-by: Peter Xu Acked-by: Johannes Weiner Thank you Peter