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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E834AC433F5 for ; Fri, 8 Apr 2022 18:15:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238043AbiDHSRn (ORCPT ); Fri, 8 Apr 2022 14:17:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235164AbiDHSRm (ORCPT ); Fri, 8 Apr 2022 14:17:42 -0400 Received: from mail-oi1-x236.google.com (mail-oi1-x236.google.com [IPv6:2607:f8b0:4864:20::236]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6EFF118B21 for ; Fri, 8 Apr 2022 11:15:38 -0700 (PDT) Received: by mail-oi1-x236.google.com with SMTP id e4so9664837oif.2 for ; Fri, 08 Apr 2022 11:15:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:subject:content-language:to :cc:references:from:in-reply-to:content-transfer-encoding; bh=GwKbUIwrzFW/zhpts7GiwJ4tNjikkjYo71Z3H5x+xOQ=; b=pTxV1ktEB2NZAr0tH1rWYBNTOzZ3Oj1Ij+2v9vn2zA0zUHAdPaGjyDA0cfaYJ07s92 dq2K131rhJigqdel2d6FBdQd56TzVWK+pJ18uF1HnMzlTUDSuGnVac+5r1MlI8axX3jF YbLd9yINU+Lw/pAAetCQFw9AWAuXEfqrx9pRvVFDYb5Si1jEDFrs+/IjCCbWzyFn9i0J IN7pvTM7PjuPYic5Vk36bDisuSihQGD1UUijzvn00CcnMzkHU0Ba/pBBFsX+IlUxtg2d rfIT0cRNyLWEcqBRxhqzcEr64xTcwG4sTpktD1HbCfWH49CUbF/IcEr+X8yNdYC4tXCP q/og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:to:cc:references:from:in-reply-to :content-transfer-encoding; bh=GwKbUIwrzFW/zhpts7GiwJ4tNjikkjYo71Z3H5x+xOQ=; b=i1nWVBKa5g+YUq2H9WGcN2G5Ks7cBoqwNNhdX6gKy+pt92b01AwQmPMvGQnKpE5ydm 7K1IWuYZ8cFqBjjzWEG4hhgtdvcesAsrE15QrLZruFYwU8eFmby0+A+r53LRyIEtiajG 6jA+/nvK7K7jLCr/zOFpiJAfq6wgauKqR/XJTqVNaAo5A7k38+xNMhBP41E0tW97etWU H7VG9QESlU28rHL+ajRh0ZT9h2I+jBuozjJqwOQqTY1bq0yokUk9UeaXO93lgfeRvewo KmMKvsdQc2lmWUeKqaNh09GY4APKjs3WDdsW/eaiM5yim3L5kDn4iSla910PuksKRzrK OJGA== X-Gm-Message-State: AOAM531f9Bl8AREHgVyae6kJ8afotFBvO/k1m0iLhOOimBh79M+20kLU vqsMhfaTrT1HGn/Qh1xjlArhj+CokyI= X-Google-Smtp-Source: ABdhPJz7bA0cafZJ2K149v4A7b5AxS9T+LTznd2T/GSqYYqH1uHXd6lPK6x1JwrLabndwBPhmSSlqg== X-Received: by 2002:a05:6808:1496:b0:2da:8662:4346 with SMTP id e22-20020a056808149600b002da86624346mr505288oiw.9.1649441737855; Fri, 08 Apr 2022 11:15:37 -0700 (PDT) Received: from ?IPV6:2603:8081:140c:1a00:d36a:c09a:7579:af8a? (2603-8081-140c-1a00-d36a-c09a-7579-af8a.res6.spectrum.com. [2603:8081:140c:1a00:d36a:c09a:7579:af8a]) by smtp.gmail.com with ESMTPSA id m187-20020aca58c4000000b002ef721352easm9026464oib.14.2022.04.08.11.15.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 08 Apr 2022 11:15:37 -0700 (PDT) Message-ID: Date: Fri, 8 Apr 2022 13:15:37 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [PATCH for-next v13 00/10] Fix race conditions in rxe_pool Content-Language: en-US To: Jason Gunthorpe Cc: zyjzyj2000@gmail.com, linux-rdma@vger.kernel.org References: <20220404215059.39819-1-rpearsonhpe@gmail.com> <20220408180659.GA3646477@nvidia.com> From: Bob Pearson In-Reply-To: <20220408180659.GA3646477@nvidia.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org On 4/8/22 13:06, Jason Gunthorpe wrote: > On Mon, Apr 04, 2022 at 04:50:50PM -0500, Bob Pearson wrote: >> There are several race conditions discovered in the current rdma_rxe >> driver. They mostly relate to races between normal operations and >> destroying objects. This patch series >> - Makes several minor cleanups in rxe_pool.[ch] >> - Adds wait for completions to the paths in verbs APIs which destroy >> objects. >> - Changes read side locking to rcu. >> - Moves object cleanup code to after ref count is zero > > This all seems fine to me now, except for the question about the > tasklets > > Thanks, > Jason Thanks. At the moment the first priority is to figure out how blktest regressed in 5.18-rc1+. Hopefully it will be easy to figure out. Bob