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=-5.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 E3110C433E6 for ; Tue, 1 Sep 2020 16:54:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A8FE620767 for ; Tue, 1 Sep 2020 16:54:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="W65P9isx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730282AbgIAQyC (ORCPT ); Tue, 1 Sep 2020 12:54:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730397AbgIAQxg (ORCPT ); Tue, 1 Sep 2020 12:53:36 -0400 Received: from mail-qk1-x743.google.com (mail-qk1-x743.google.com [IPv6:2607:f8b0:4864:20::743]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86555C061245; Tue, 1 Sep 2020 09:53:36 -0700 (PDT) Received: by mail-qk1-x743.google.com with SMTP id f2so1617646qkh.3; Tue, 01 Sep 2020 09:53:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=bDHOycR99A9fea4oemmH4QsN3Fgy3zwOncJmsbDtx0I=; b=W65P9isxjaU67UF2GaDdMWn7ga3uY6NeEuRGkMk/re+HnZwyRpVqsu+IWlPSrDG2IM 0/3IHymOc2m0aNNGqm4YMfgVnF2RwWXrVOn3BKzWrEY5S1mosXBHqTyuhxKE4VHw3JOp MTXSyn8ym331Mu8wFM3+qKs0MnPv5Cl9CFrwZ7lHHy5vDe/X09XjCAwBwFBKo1/6N+gm Hlw/XwDXgOHmIj//Xih43U2bjJsqiEa2eB/EeX+KHkne+4kqqnDlpZJ+kO6JWFAyPjPb NhFLQepQ7yzp4wjhtNbA6Mb+s7gIJtXwruJ9ZYcRgLD69eiQHjDpD8OmME41rxtrCZ/C +4dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=bDHOycR99A9fea4oemmH4QsN3Fgy3zwOncJmsbDtx0I=; b=SzswSAbzQiKtDwCs4BjaHJLSyFZNK6UcMgPZXu273nJULd14VQRqgCOomeV8MCEWX0 tSlVAAXfTk4wqBFBa6han3LKSytvCvMwDTSCVZ2a3dXisaOhmMD5hMJbkRq4lwOu4KXB XWADnDaKxJxgYWrAJhorUYFiupuJ9a4EXQhrVZsCkw8TcVoN+3Rb+jIV5dBy/atz9LbB TtVYe3vcYuSf0sDe7TS09XBNoKCqkj0on7kJFAJff99Sntb9lhFwIYh5PVLaH7JjebMn /ZpMMVFERyHralwNJs0Sb/VzU2z2AsScHHIHlQ4GZZBh4D73EsWHvA8uYuEmvhiBH/Fv StgQ== X-Gm-Message-State: AOAM532klztztNpfDTaiuLsiS5ECE3w96lREGyCd9JFQcfOrx8Vyo0v7 r6F/iCp23Tb3PiejREoDCb73nfeB258fdVz2 X-Google-Smtp-Source: ABdhPJw9HPhTkDodABIRBc8d46bnOrovCP+EIN346XQ42BRASH8qYdUER+Jo/+08ALgNJVWRjupGTQ== X-Received: by 2002:ae9:ef02:: with SMTP id d2mr2839024qkg.7.1598979215611; Tue, 01 Sep 2020 09:53:35 -0700 (PDT) Received: from leah-Ubuntu ([2601:4c3:200:c230:4970:3d06:3c98:c0eb]) by smtp.gmail.com with ESMTPSA id k185sm2167335qkc.77.2020.09.01.09.53.35 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 01 Sep 2020 09:53:35 -0700 (PDT) Date: Tue, 1 Sep 2020 12:53:33 -0400 From: Leah Rumancik To: Bob Liu Cc: bpf@vger.kernel.org, linux-block@vger.kernel.org, orbekk@google.com, harshads@google.com, jasiu@google.com, saranyamohan@google.com, tytso@google.com, bvanassche@google.com, "Martin K. Petersen" Subject: Re: [RFC PATCH 1/4] bpf: add new prog_type BPF_PROG_TYPE_IO_FILTER Message-ID: <20200901165333.GD5599@leah-Ubuntu> References: <20200812163305.545447-1-leah.rumancik@gmail.com> <20200812163305.545447-2-leah.rumancik@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Mon, Aug 17, 2020 at 10:18:47PM +0800, Bob Liu wrote: > On 8/13/20 12:33 AM, Leah Rumancik wrote: > > This program type is intended to help filter and monitor IO requests. > > > > I was also working on similar tasks. > Thanks for the review Bob. What use cases did you have for your implementation?