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=-6.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 AA9B8C433E2 for ; Fri, 28 Aug 2020 13:54:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7D06D207DF for ; Fri, 28 Aug 2020 13:54:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="YVsUzZaB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727777AbgH1Nyn (ORCPT ); Fri, 28 Aug 2020 09:54:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50390 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726571AbgH1Nyi (ORCPT ); Fri, 28 Aug 2020 09:54:38 -0400 Received: from mail-io1-xd42.google.com (mail-io1-xd42.google.com [IPv6:2607:f8b0:4864:20::d42]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 121A7C061264 for ; Fri, 28 Aug 2020 06:54:38 -0700 (PDT) Received: by mail-io1-xd42.google.com with SMTP id l8so1296561ios.2 for ; Fri, 28 Aug 2020 06:54:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=WRKo7hiT95deJi9zYbsblqjV9aJcpM8zCpj7qeA/5Zk=; b=YVsUzZaBEQ53O+ALtCXuIdqxzBIDW3EcmfvL2hnfvV5xUF4iMm+B4JlwWitKyKbIs5 Yw0rvFpnIGxEH4Myz5gJ2NpALDj3iGTg5Bn4i0Mx0Z/BHbdOY66/TxbgawDTyD1tEMZF rHs1GEtEC3eIlm22ucM6PAACpTOG7ztcIaHojfW5bBDWzs7YEbghB9NncfqparvidAab fiNAvhuG3HfI+TTePV+Q7LwtIXWC558ASRrWY30EUskGYay8UPVXfZrH+i+qGZFjU+qT yDx7ZUz6/KAHy+euxN+huztZr0ivbC6lsw+iSy6QAb6pisSUCmasBPYwlZR9cUZ9YO27 iPig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=WRKo7hiT95deJi9zYbsblqjV9aJcpM8zCpj7qeA/5Zk=; b=Hsdv7pjaOybkl3ErD9OQz1fdfgUjp1PkMcBM4NB8h2zelVk9A13mW6U8R6p5QJbS8f CtsIOT4mTGOGeCjh8tMQu8p6iNjhay0vGlLyb0kU0+hfA9eyinJB+u40PfY1HePo40wm G+pnhJ1OxAi6h9e9J9aH8Ex3vZrvyuq6xGi9RBbetnqn7n2/JzxcYRieZHfuTVU6lJZO MFHWD+m+ynigypGPaLAXJBFOpOtL9LFw0r5zHHBTQoZx2MbFqlG2vn3Ege4eQKN+LH/L oUr8IUAE2V5HwgndzQbjp54lo73uVlgtJ1vVc2xoGCJyJ2zp0W4uNHAGMd7MKUP5/VmV Kprw== X-Gm-Message-State: AOAM530ywASpPQgFxpPtEa2TBsy+R73xRO6Rmvvr5dNVx/BG1khAbmMZ HwbPMwckLyDIaJJisnhSJ8wcpQ== X-Google-Smtp-Source: ABdhPJzLdhaDX6/v6n0jKbkwolcavpJW6jj2Pl4fouvQn8W4qE2qcwsgn7Ax+Pg2ygmQWji3jSEYNg== X-Received: by 2002:a05:6638:1649:: with SMTP id a9mr1297090jat.115.1598622877380; Fri, 28 Aug 2020 06:54:37 -0700 (PDT) Received: from [192.168.1.58] ([65.144.74.34]) by smtp.gmail.com with ESMTPSA id l144sm623447ill.6.2020.08.28.06.54.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2020 06:54:36 -0700 (PDT) Subject: Re: [PATCH 0/1] block io layer filters api To: Sergei Shtepa , masahiroy@kernel.org, michal.lkml@markovi.net, koct9i@gmail.com, jack@suse.cz, damien.lemoal@wdc.com, ming.lei@redhat.com, steve@sk2.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org References: <1598555619-14792-1-git-send-email-sergei.shtepa@veeam.com> From: Jens Axboe Message-ID: <7a517822-6be2-7d0d-fae3-31472c85f543@kernel.dk> Date: Fri, 28 Aug 2020 07:54:35 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <1598555619-14792-1-git-send-email-sergei.shtepa@veeam.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/27/20 1:13 PM, Sergei Shtepa wrote: > Hello everyone! Requesting for your comments and suggestions. > > We propose new kernel API that should be beneficial for out-of-tree > kernel modules of multiple backup vendors: block layer filter API. That's just a non-starter, I'm afraid. We generally don't carry infrastructure in the kernel for out-of-tree modules, that includes even exports of existing code. If there's a strong use case *in* the kernel, then such functionality could be entertained. -- Jens Axboe