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 X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BE40FC2D0A3 for ; Thu, 29 Oct 2020 09:25:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 658B72076B for ; Thu, 29 Oct 2020 09:25:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="RAZGAbKd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726524AbgJ2JZ2 (ORCPT ); Thu, 29 Oct 2020 05:25:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46026 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726436AbgJ2JZ2 (ORCPT ); Thu, 29 Oct 2020 05:25:28 -0400 Received: from mail-ot1-x344.google.com (mail-ot1-x344.google.com [IPv6:2607:f8b0:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 25A0CC0613D3 for ; Thu, 29 Oct 2020 02:25:28 -0700 (PDT) Received: by mail-ot1-x344.google.com with SMTP id f97so1679540otb.7 for ; Thu, 29 Oct 2020 02:25:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=RXd5L3340dzHPl4D7TSnIVGFAYIoQ/W+pLHz6LYz95I=; b=RAZGAbKdB4XcnSD0wp1Kz5dBTHMEAkPA/y5Q5zBFcm5ek6TOqOD+2MjSuNA7CsSuFv QdasXZzvzm82On3eSCMCjzvEPeFEdeSGCKm4fjXr/Z2Mh9xwUtFmVb6ioAaMFNhmVvnm LvNYGo6oa8r1Gs3CbA9euLgw6UBFM7BcU9IdE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=RXd5L3340dzHPl4D7TSnIVGFAYIoQ/W+pLHz6LYz95I=; b=hPCIggHY7eJnTCtu6HzaDMPM/BUuKMOImPsX7T+4NTWESdh7XCJuiiyxQ1Snl5BWR6 fgS1ma8CI9pHxg7rGZP3L3Ak8L6WDWdaQSxNkXwHohCcyVcRgrazqy/z11zt3MkO4A/s wileT2YVpIg73neZprzan3ra65vlzAh8JB5XDGSyoLHpDZl71EMK+e6BY81eeCef2F/2 zeIbDRcxD1V7cWFkYPwx0hd8n1S8DuUguFw3HfTEOm7epCIpa4mZedi3EVn9AHuF15oD cssLYS02NyxiOJcMTNobD2Xs9c0E723PF/R/E8qgv6Sj5PacXWQcV6kfv+lcSh5cKEs6 Uavw== X-Gm-Message-State: AOAM532FLMHe5Rsjq5MRpb45vo/YeakRzYwyFXgaJNNN5ARmgshs3txP U1JMhQb29Z3MnLyNrDyNfYymvbu/lT4K0b/LOmVU7Q== X-Google-Smtp-Source: ABdhPJz3d3GbocYLOWK17PC84OSTKCpC1P9Cp1Gqiuhg8zJB6kTRUJIIoeLruWIEtxgmiFM3IrJbR1M7sDMXTefUSTI= X-Received: by 2002:a05:6830:1c3c:: with SMTP id f28mr2685703ote.188.1603963527533; Thu, 29 Oct 2020 02:25:27 -0700 (PDT) MIME-Version: 1.0 References: <20201026105818.2585306-1-daniel.vetter@ffwll.ch> <20201029085749.GB25658@infradead.org> In-Reply-To: <20201029085749.GB25658@infradead.org> From: Daniel Vetter Date: Thu, 29 Oct 2020 10:25:16 +0100 Message-ID: Subject: Re: [PATCH v4 00/15] follow_pfn and other iomap races To: Christoph Hellwig Cc: DRI Development , LKML , KVM list , Linux MM , Linux ARM , linux-samsung-soc , "open list:DMA BUFFER SHARING FRAMEWORK" , linux-s390 Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Archived-At: List-Archive: List-Post: On Thu, Oct 29, 2020 at 9:57 AM Christoph Hellwig wrote: > > Maybe I'm missing something, but shouldn't follow_pfn be unexported > at the end of the series? kvm is a legit user and modular afaict. But since you can't use this without an mmu_notifier anyway (or digging around in pagetable locking), maybe it should be EXPORT_SYMBOL_GPL now at least? -Daniel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch