Received: by 2002:a17:90b:8d0:0:0:0:0 with SMTP id ds16csp5085120pjb; Mon, 27 Jul 2020 12:33:37 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwlYTt2cZus8PQskj4OZ/LQh+k5LUjrnSvV5LDTHDiB4mNwGdu8JAsQhuxdoFqJNt6EJmEw X-Received: by 2002:a17:906:82c1:: with SMTP id a1mr11234995ejy.172.1595878417366; Mon, 27 Jul 2020 12:33:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595878417; cv=none; d=google.com; s=arc-20160816; b=z6jmClVOuytnzvXRSJ+9r3ZHpTiaRC1EoGsxP2RpLiKUc+w0VkY/PjbktQpbdJGgo6 KI9UAYvmP53VFp9D+yrXg+/GHqdR9iC2e1l+sN6yH19umxcvuy49dv9iqCZ62fhAfMAx EyGkJZn0UqCsw8s0R1xULrY6b7E2XqLwPjR3aC/LHglhHLpiSQ+prvDl7k7mXdIhAG9H 6bgYk0jm6ngOHVbiMiIN+l7sWlSlh8u6WQIKefm+Keu6qFnHE9UTYPi3ad9I7V6L3f4M s9ffTGb0m6YZyox8OVTWVrJjIewTNs/C/ki5VbbrsBhHpDAKRSQVDaUdOehP2qJ49FAG vBiw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=TmyKRx+pnwAcTr8aNEGLAhKLXv9cGfspdp5x9wLtzCU=; b=suigAcJRmQZohAM7SlDqrS6UlEuUtmkaHl6KSqKEZ6tjOsLVrZkDEm/exO4ruH/oHJ 9Hf2bUEZajZBjhPMvCjBjPjV7s5b1THZzoTbtDQwroPbyW6b9l6xrX4k6OkSbn9OoUsl 9JmMtNo3fI2/D6swOaAJoL/A88UY6AwbvmoULQUwhryxyHAVeYMeXdUYkQ7IbEbefZ1C an+pXLzc8SPfhIKr1EHs2BVBLCFUrpeFSfsbS6t4mB1ZhwldcLGe2mWIzFuS8+GWdmUA NO9zeBo4eQiEkbMShFLD13YLXoVM5chwzG1+59lW+uowvUS+vI0+YwsyDK8ds24qV567 novQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ZbgCyEDC; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id g12si6124643edu.151.2020.07.27.12.33.15; Mon, 27 Jul 2020 12:33:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=ZbgCyEDC; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728476AbgG0TMk (ORCPT + 99 others); Mon, 27 Jul 2020 15:12:40 -0400 Received: from mail.kernel.org ([198.145.29.99]:56856 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728343AbgG0TMk (ORCPT ); Mon, 27 Jul 2020 15:12:40 -0400 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C24C520719; Mon, 27 Jul 2020 19:12:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595877160; bh=iDjuqni09Ye+Y5tnBznZ5YEHc2O13s9uN4udYT6xhSg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ZbgCyEDCCb9e28CEWIs4zRb4ylp5tXAupnlxiuhkXb7GspPsQvYAzWADUqm5idmbp W2kek20eQJMvggBOY7o0OMkIakJOOY8j9ATva8TRjGuJOByzP1YDl86skpoJBjb1ba kbJgg10ZmpQCq/HNvMUXyz69h/3my82xjPz0H82U= Date: Mon, 27 Jul 2020 15:12:38 -0400 From: Sasha Levin To: Gabriel Krisman Bertazi Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org, stable@vger.kernel.org, Mike Snitzer Subject: Re: [PATCH 5.7 024/179] dm mpath: pass IO start time to path selector Message-ID: <20200727191238.GH406581@sasha-vm> References: <20200727134932.659499757@linuxfoundation.org> <20200727134933.846667790@linuxfoundation.org> <87sgdcuda6.fsf@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <87sgdcuda6.fsf@collabora.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 27, 2020 at 12:35:13PM -0400, Gabriel Krisman Bertazi wrote: >Greg Kroah-Hartman writes: > >> From: Gabriel Krisman Bertazi >> >> [ Upstream commit 087615bf3acdafd0ba7c7c9ed5286e7b7c80fe1b ] >> >> The HST path selector needs this information to perform path >> prediction. For request-based mpath, struct request's io_start_time_ns >> is used, while for bio-based, use the start_time stored in dm_io. > >Hi Greg, > >This patch is not -stable material. It is only needed for a new feature >merged in 5.8. I've dropped it, thank you! -- Thanks, Sasha