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=-6.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 30281C11F66 for ; Wed, 14 Jul 2021 15:43:48 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B1B70613D1 for ; Wed, 14 Jul 2021 15:43:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B1B70613D1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id EE93B6B0083; Wed, 14 Jul 2021 11:43:47 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E99666B0085; Wed, 14 Jul 2021 11:43:47 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D61016B0088; Wed, 14 Jul 2021 11:43:47 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0088.hostedemail.com [216.40.44.88]) by kanga.kvack.org (Postfix) with ESMTP id B257A6B0083 for ; Wed, 14 Jul 2021 11:43:47 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 9564616470 for ; Wed, 14 Jul 2021 15:43:46 +0000 (UTC) X-FDA: 78361613652.28.CCBD7CF Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf27.hostedemail.com (Postfix) with ESMTP id 3037270000AC for ; Wed, 14 Jul 2021 15:43:46 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id CE9D46128D; Wed, 14 Jul 2021 15:43:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626277425; bh=d3SepSHR1zsaIRMdkArdFgOSddc3shwTd4YG7BFwsIQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SebiK21tNzMm0ghmyLFb0800rIaLPx3doW48bB9z/Cf4mIX/tzPTzbbzkaKlC3bZ6 3vaNpmcoeIMgzOVMQFN5TIdJnJutxcvdKOTgNdu3Ytzy274JKv/I7p9JOdqmqyzIJe xz9ycnGFXXOnvMG7fyZlNIprVdqoBTIx3X4CVqa4= Date: Wed, 14 Jul 2021 17:43:42 +0200 From: Greg Kroah-Hartman To: "Theodore Y. Ts'o" Cc: Sasha Levin , Andrew Morton , Michal Hocko , Hugh Dickins , Linus Torvalds , Mike Kravetz , Miaohe Lin , linux-kernel@vger.kernel.org, linux-mm@kvack.org, stable@vger.kernel.org Subject: Re: 5.13.2-rc and others have many not for stable Message-ID: References: <2b1b798e-8449-11e-e2a1-daf6a341409b@google.com> <20210713182813.2fdd57075a732c229f901140@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Authentication-Results: imf27.hostedemail.com; dkim=pass header.d=linuxfoundation.org header.s=korg header.b=SebiK21t; spf=pass (imf27.hostedemail.com: domain of gregkh@linuxfoundation.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org; dmarc=pass (policy=none) header.from=linuxfoundation.org X-Rspamd-Server: rspam05 X-Stat-Signature: dzc4rrkydcg4wedkmckjiq7sbefaipaq X-Rspamd-Queue-Id: 3037270000AC X-HE-Tag: 1626277426-45053 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Jul 14, 2021 at 11:35:29AM -0400, Theodore Y. Ts'o wrote: > On Wed, Jul 14, 2021 at 09:52:53AM -0400, Sasha Levin wrote: > > On Wed, Jul 14, 2021 at 11:18:14AM +0200, Greg Kroah-Hartman wrote: > > > On Tue, Jul 13, 2021 at 06:28:13PM -0700, Andrew Morton wrote: > > > > Alternatively I could just invent a new tag to replace the "Fixes:" > > > > ("Fixes-no-backport?") to be used on patches which fix a known previous > > > > commit but which we don't want backported. > > > > > > No please, that's not needed, I'll just ignore these types of patches > > > now, and will go drop these from the queues. > > > > > > Sasha, can you also add these to your "do not apply" script as well? > > > > Sure, but I don't see how this is viable in the long term. Look at > > distros that don't follow LTS trees and cherry pick only important > > fixes, and see how many of those don't have a stable@ tag. > > I've been talking to an enterprise distro who chooses not to use the > LTS releases, and it's mainly because they tried it, and there was too > many regressions leading to their customers filing problem reports > which get escalated to their engineers, leading to unhappy customers > and extra work for their engineers. (And they have numbers to back up > this assertion; this isn't just a gut feel sort of thing.) When did they last actually do this? Before or after we started testing stable releases better? I have numbers to back up the other side, along with the security research showing that to ignore these stable releases puts systems at documented risk. But enterprise distros really are a small market these days, a rounding error compared to Android phones, so maybe we just ignore what they do as it's a very tiny niche market these days? :) thanks, greg k-h