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=1.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, TVD_PH_BODY_ACCOUNTS_POST,TVD_PH_BODY_META_ALL 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 AD636C43441 for ; Mon, 26 Nov 2018 17:33:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 76C2420663 for ; Mon, 26 Nov 2018 17:33:36 +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="mS/ZmBRO" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 76C2420663 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-block-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726315AbeK0E2W (ORCPT ); Mon, 26 Nov 2018 23:28:22 -0500 Received: from mail-it1-f172.google.com ([209.85.166.172]:37284 "EHLO mail-it1-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726224AbeK0E2W (ORCPT ); Mon, 26 Nov 2018 23:28:22 -0500 Received: by mail-it1-f172.google.com with SMTP id b5so29057519iti.2 for ; Mon, 26 Nov 2018 09:33:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=bN1B9nhrhiTri0BadmhfrZJG1XQqtqjlCYbXrfpUSH0=; b=mS/ZmBRO4pAsZVSD6m8Bc/Jfo4zKMfVd0oHqUMaCWOwKtRch37JtrhlKOZCIMHUBVv 2qWtW+SObngwELs6AMcUd6V31BGJYRHAFB18/Kvv4ZWVt1Z+eFDS7bqutepF4OBFSZlX eycGeI+bqsAbReDdaMbY2d4BIZ6CPa2MZqR1W6YpIieEkrnLlzGCIS8vL/SEzpjGchC0 CPU4qkhd95esH7Ts2aKZOXsMdtuumm+6urQtIcx0BFM7pWTEV5jdQJSGfWYdQ7kkRtX2 uJe1IHODf7Cc26vo6qZVP9QUBLPExqiuBty4KGN47OLGtFXP+D5ecVXGaTFaP5ZCQKXr Ckxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=bN1B9nhrhiTri0BadmhfrZJG1XQqtqjlCYbXrfpUSH0=; b=Aw4nBof9xHKd6YvFsvcIePUc2OFRsgsZeORqmU492gkmsKyrSK2KyN8QEF7Y95s4Vg hi8GWIXK9RIEm8UrAHDzO5fNy3MA+cM3XCOIC0iqQ3i8N430tPCaOllejDlTkEEponIz UsVtY/fMViPMnXoXF4r9WCwQ8VAt3vX4ePP3hNJ6TJNLS2z+eq5IWgokkDOnkx45PYtW FzUCoOYyjQT2xpRZfrnsor2OA2CzWsfCcrCKI2/LyCAU47gtpF1WaHzrO0gQCq6zGS8s uosA3UU5yR6CFHomU90/WsknStWNGh0MnW2MR4KKejRl7XEwIq0O5cDYJXCVjfXJu0+W HL1w== X-Gm-Message-State: AA+aEWYWqziuvgq/q2KdY3fS3c+EQG4HUL6vuJuc7Ze4DFnJwPxOK0yT MCbQOa8Ksdlk9+17PiT1wkAJCQ== X-Google-Smtp-Source: AFSGD/Vhz926GoB1i/hdrjzwmmCTBbRAqmbHKslZ/n8dDh6O+sUJEUI90MM9/jVGf1qB+eiujQtvQg== X-Received: by 2002:a02:660f:: with SMTP id k15mr6068264jac.38.1543253614679; Mon, 26 Nov 2018 09:33:34 -0800 (PST) Received: from [192.168.1.56] ([216.160.245.98]) by smtp.gmail.com with ESMTPSA id t129sm611149ita.4.2018.11.26.09.33.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Nov 2018 09:33:33 -0800 (PST) Subject: Re: [PATCHv4 0/3] scsi timeout handling updates To: Keith Busch , linux-scsi@vger.kernel.org, linux-block@vger.kernel.org Cc: Martin Petersen , Bart Van Assche , Christoph Hellwig References: <20181126165430.4519-1-keith.busch@intel.com> From: Jens Axboe Message-ID: Date: Mon, 26 Nov 2018 10:33:32 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 MIME-Version: 1.0 In-Reply-To: <20181126165430.4519-1-keith.busch@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 11/26/18 9:54 AM, Keith Busch wrote: > The iterative update to the previous version taking into account review > comments. > > Background: > > The main objective is to remove the generic block layer's lock prefix > currently required to transition a request to its completed state by > shifting that expense to lower level drivers that actually need it, > and removing the software layering violation that was required to use > that mechnaism. Thanks Keith, added for 4.21. -- Jens Axboe