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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable 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 786C4C282DD for ; Mon, 10 Jun 2019 09:00:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5AD7F2082E for ; Mon, 10 Jun 2019 09:00:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388630AbfFJJAP (ORCPT ); Mon, 10 Jun 2019 05:00:15 -0400 Received: from mx2.suse.de ([195.135.220.15]:43910 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2388190AbfFJJAP (ORCPT ); Mon, 10 Jun 2019 05:00:15 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 624E1AFDB; Mon, 10 Jun 2019 09:00:14 +0000 (UTC) Received: by quack2.suse.cz (Postfix, from userid 1000) id 2B0051E3FCB; Mon, 10 Jun 2019 11:00:13 +0200 (CEST) Date: Mon, 10 Jun 2019 11:00:13 +0200 From: Jan Kara To: Sasha Levin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, Jan Kara , syzbot+10007d66ca02b08f0e60@syzkaller.appspotmail.com, Jens Axboe , linux-block@vger.kernel.org Subject: Re: [PATCH AUTOSEL 5.1 35/70] loop: Don't change loop device under exclusive opener Message-ID: <20190610090013.GF12765@quack2.suse.cz> References: <20190608113950.8033-1-sashal@kernel.org> <20190608113950.8033-35-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190608113950.8033-35-sashal@kernel.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Sat 08-06-19 07:39:14, Sasha Levin wrote: > From: Jan Kara > > [ Upstream commit 33ec3e53e7b1869d7851e59e126bdb0fe0bd1982 ] Please don't push this to stable kernels because... > [Deliberately chosen not to CC stable as a user with priviledges to > trigger this race has other means of taking the system down and this > has a potential of breaking some weird userspace setup] ... of this. Thanks! Honza -- Jan Kara SUSE Labs, CR