Received: by 2002:a25:ca44:0:0:0:0:0 with SMTP id a65csp1311336ybg; Mon, 27 Jul 2020 13:33:05 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzOZ535W98EgbW6dwAns5rRpAQBnJHr7dLLDDU5kPwFiB5gKSyqEoLy51NmmVOqygk3xoi/ X-Received: by 2002:a17:906:cc4d:: with SMTP id mm13mr11096541ejb.191.1595881985054; Mon, 27 Jul 2020 13:33:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595881985; cv=none; d=google.com; s=arc-20160816; b=kQLzoLn57kAnhqnjFMulguxwYKQ5302J6U5R6764ElmYqYBO9bF0H1t5T5T9oG9lNL qn04u+MvqokkyUC09Nz4IF3R+9q6OxVUEFStqbUbAyFac1eKNY/a6WEPvhVS0exedYVp XIwy7q9VucwUnhL74hMUvDxebZtwCgWCjKNgisfvTVoVnr9lTpF159DJVlZqMcmw25Fv uAYYSnilcKfjLMrmEOP9Q2w3ff3+Rq7nV7r67EV9Lq0ovFvq4gmgobIftV3d2f6qmDMc WhdoE9tfE5zxh+lMmeTgos94QmCcwKvpmFlwW/IvIgg2gQjeioSmRwAmYeBjVZpB46ZB 5R4g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=hw5a11evQWNoZLcSM3PhrQFxwvQ8zctZnXM4jg3v0qk=; b=z+UjVzNTV8Hl7S+mD3ke7ktO7WXE+0P8Y1L93yESf8TDNtjMiOIxxbLy3k5XE3r3TM UMYMu28uJyaAdtJ/YZCOJOuTPo4sNEqmENFAcrjrrx3YFR73vrjHmbmYS38d7ukn62M5 iUNLxK/byp0N9tJhg0uB7SCNOAjM/C3G8PnGS6o7hgWL7wIyagpRW9ikRL8MqZInT7Zz nfFERAVihQKRitiLnLrSaNGZzqXT60BbvG6xV6Qq3gMdo/M2QbvLH2kZ6BE5qUtSZ7L1 j7EVdeggPZWPBbp6ZDs/0mtu3tErOzjfAZHrseH7G7NqDiv6NS2M6Hsow/pxc98kHbe3 CRXA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=Snw79Wkn; 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=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id a3si6448013ejd.449.2020.07.27.13.32.42; Mon, 27 Jul 2020 13:33:05 -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=@redhat.com header.s=mimecast20190719 header.b=Snw79Wkn; 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=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729198AbgG0Uab (ORCPT + 99 others); Mon, 27 Jul 2020 16:30:31 -0400 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:28763 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726196AbgG0Uab (ORCPT ); Mon, 27 Jul 2020 16:30:31 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1595881830; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=hw5a11evQWNoZLcSM3PhrQFxwvQ8zctZnXM4jg3v0qk=; b=Snw79WknaTJco2AEGy2GbZz0QVuIjU6nDaUSPhRJq4IPPTrjRnZNri4ukwyaG4glEG9ArY LhnE/rD1WWSh0jpG7XYRNyFMy7CKFo1zYo8Dr09m6cpM+/9w42ObP/PejSFbLWtcXibyov lctEd03lh6j4b+Fi0gElFzXOm6ETES0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-498-LgqPGVQYPI6kbodr6iBHuw-1; Mon, 27 Jul 2020 16:30:28 -0400 X-MC-Unique: LgqPGVQYPI6kbodr6iBHuw-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2F1C11932480; Mon, 27 Jul 2020 20:30:27 +0000 (UTC) Received: from localhost (unknown [10.18.25.174]) by smtp.corp.redhat.com (Postfix) with ESMTPS id F31F410013D7; Mon, 27 Jul 2020 20:30:26 +0000 (UTC) Date: Mon, 27 Jul 2020 16:30:26 -0400 From: Mike Snitzer To: Sasha Levin Cc: John Donnelly , stable@vger.kernel.org, Linux Kernel Mailing List Subject: Re: (resend) [PATCH [linux-4.14.y]] dm cache: submit writethrough writes in parallel to origin and cache Message-ID: <20200727203025.GA28830@redhat.com> References: <37c5a615-655d-c106-afd0-54e03f3c0eef@oracle.com> <20200727150014.GA27472@redhat.com> <20200727191809.GI406581@sasha-vm> <20200727201700.GJ406581@sasha-vm> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200727201700.GJ406581@sasha-vm> User-Agent: Mutt/1.5.21 (2010-09-15) X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 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 4:17pm -0400, Sasha Levin wrote: > On Mon, Jul 27, 2020 at 02:38:52PM -0500, John Donnelly wrote: > > > > > >>On Jul 27, 2020, at 2:18 PM, Sasha Levin wrote: > >> > >>On Mon, Jul 27, 2020 at 11:00:14AM -0400, Mike Snitzer wrote: > >>>This mail needs to be saent to stable@vger.kernel.org (now cc'd). > >>> > >>>Greg et al: please backport 2df3bae9a6543e90042291707b8db0cbfbae9ee9 > >> > >>Hm, what's the issue that this patch addresses? It's not clear from the > >>commit message. > >> > >>-- > >>Thanks, > >>Sasha > > > >HI Sasha , > > > >In an off-line conversation I had with Mike , he indicated that : > > > > > >commit 1b17159e52bb31f982f82a6278acd7fab1d3f67b > >Author: Mike Snitzer > >Date: Fri Feb 28 18:00:53 2020 -0500 > > > > dm bio record: save/restore bi_end_io and bi_integrity > > > > > >commit 248aa2645aa7fc9175d1107c2593cc90d4af5a4e > >Author: Mike Snitzer > >Date: Fri Feb 28 18:11:53 2020 -0500 > > > > dm integrity: use dm_bio_record and dm_bio_restore > > > > > >Were picked up in "stable" kernels picked up even though > >neither was marked for stable@vger.kernel.org > > > >Adding this missing commit : > > > >2df3bae9a6543e90042291707b8db0cbfbae9ee9 > > > > > >Completes the series > > Should we just revert those two commits instead if they're not needed? I'd be fine with that, exceept I haven't looked to see whether any other stable commits conflict with reverting them. But you have my blessing to give it a shot ;) Mike