From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gabriel Krisman Bertazi Subject: Re: [dm-devel] [PATCH v4 0/2] Historical Service Time Path Selector Date: Wed, 20 May 2020 20:15:09 -0400 Message-ID: <85tv0am9de.fsf@collabora.com> References: <20200511163910.3778467-1-krisman@collabora.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: (Xose Vazquez Perez's message of "Thu, 21 May 2020 01:26:27 +0200") Sender: linux-kernel-owner@vger.kernel.org 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 List-Id: dm-devel.ids 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