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=-0.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 BF60FC433DF for ; Thu, 21 May 2020 00:15:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 92F5E207C4 for ; Thu, 21 May 2020 00:15:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726801AbgEUAPR (ORCPT ); Wed, 20 May 2020 20:15:17 -0400 Received: from bhuna.collabora.co.uk ([46.235.227.227]:42330 "EHLO bhuna.collabora.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726619AbgEUAPR (ORCPT ); Wed, 20 May 2020 20:15:17 -0400 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: krisman) with ESMTPSA id A4FDB2A2AFE From: Gabriel Krisman Bertazi To: Xose Vazquez Perez Cc: agk@redhat.com, snitzer@redhat.com, breeves@redhat.com, linux-kernel@vger.kernel.org, khazhy@google.com, song@kernel.org, dm-devel@redhat.com, mpatocka@redhat.com, kernel@collabora.com Subject: Re: [dm-devel] [PATCH v4 0/2] Historical Service Time Path Selector Organization: Collabora References: <20200511163910.3778467-1-krisman@collabora.com> Date: Wed, 20 May 2020 20:15:09 -0400 In-Reply-To: (Xose Vazquez Perez's message of "Thu, 21 May 2020 01:26:27 +0200") Message-ID: <85tv0am9de.fsf@collabora.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Xose Vazquez Perez writes: > On 5/11/20 6:39 PM, Gabriel Krisman Bertazi wrote: > >> This fourth version of HST applies the suggestion from Mikulas Patocka >> to do the ktime_get_ns inside the mpath map_bio instead of generic >> device-mapper code. This means that struct dm_mpath_io gained another >> 64bit field. For the request-based case, we continue to use the block >> layer start time information. > > You should add some info to the multipath.conf.5 man page ( > https://git.opensvc.com/gitweb.cgi?p=multipath-tools/.git;a=blob;f=multipath/multipath.conf.5;h=05a5e8ffeb110d969f3b2381eb3b88d7f28380f6;hb=HEAD#l189 > ), > or none one is going to use it. Sure, will do. -- Gabriel Krisman Bertazi