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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 D656BC43460 for ; Sun, 25 Apr 2021 18:39:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B310E6128A for ; Sun, 25 Apr 2021 18:39:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230508AbhDYSk0 (ORCPT ); Sun, 25 Apr 2021 14:40:26 -0400 Received: from mail-pl1-f178.google.com ([209.85.214.178]:44914 "EHLO mail-pl1-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230459AbhDYSk0 (ORCPT ); Sun, 25 Apr 2021 14:40:26 -0400 Received: by mail-pl1-f178.google.com with SMTP id y1so12092864plg.11; Sun, 25 Apr 2021 11:39:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=5YG2hPeM/Yx8k+iQC4Kx30pgH4bvBziMfztPYklA/YY=; b=ZOZFUFriKZjG747j4ic4SdQCXqpKBWqmrfC9qS1ZPNv3NdQWsAP8tyxWDy8wWScupl 137Rk2ld2Y9JAyBgFgJhQ6C8SOeWjtX8vFKJH9pnP+y1u73zXKZAKzMBNMogfcZ3pds3 vf5ZracAvuEfXNKP+eCjK7liLVsqP0a4ku6q+NRf9sUEyPl/CIBVGJG+Jy5FLXI9FYTc OMTnIwRAoOanvbBii44BEpAT+AQgoZRIiJTM/6ZRoHK9ShxAAhBIOwbRG73CBDwLFRh4 OgiWEP3cs2VmZtQxGMQBPo4WDq15MJ+gZkHESeTWaFq5MMjLlKdtyYzSRtVVz7HnbVn+ w4qQ== X-Gm-Message-State: AOAM532KPzoDsTCPPUMdpTZzK1xHvlwAUqRpYszLBTBZNY0836tRj9HQ z2qyI/7wsMxnA93iRWMDfyU= X-Google-Smtp-Source: ABdhPJwN+teehJ1j2dpG2nmGQYgx83VbGPsxMT79+JYLw9zHjL66D4/ElzwmhTMnburTc0ZLaX5d8Q== X-Received: by 2002:a17:902:ea05:b029:ed:3116:d65f with SMTP id s5-20020a170902ea05b02900ed3116d65fmr1002683plg.73.1619375985787; Sun, 25 Apr 2021 11:39:45 -0700 (PDT) Received: from [192.168.3.219] (c-73-241-217-19.hsd1.ca.comcast.net. [73.241.217.19]) by smtp.gmail.com with ESMTPSA id g34sm9485942pgg.59.2021.04.25.11.39.44 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 25 Apr 2021 11:39:45 -0700 (PDT) Subject: Re: [PATCH 0/8] blk-mq: fix request UAF related with iterating over tagset requests To: Jens Axboe , Ming Lei , linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org, "Martin K . Petersen" , Christoph Hellwig Cc: Khazhy Kumykov , Shin'ichiro Kawasaki , Hannes Reinecke , John Garry , David Jeffery References: <20210425085753.2617424-1-ming.lei@redhat.com> <77cbc472-279e-5c9a-3428-b1a485b3f1b7@kernel.dk> From: Bart Van Assche Message-ID: Date: Sun, 25 Apr 2021 11:39:43 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.9.1 MIME-Version: 1.0 In-Reply-To: <77cbc472-279e-5c9a-3428-b1a485b3f1b7@kernel.dk> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 4/25/21 9:17 AM, Jens Axboe wrote: > I'm going to pull the UAF series for now so we don't need to do a series > of reverts if we deem this a better approach. I'll take a further look > at it tomorrow. Please give me the time to post review comments. My opinion about this series is that (a) the analysis on which some patches are based is wrong and also (b) that some patches introduce new bugs that are worse than the current state of the for-next branch and also make it worse than the v5.11 kernel. Bart.