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 45A5EC433EF for ; Sun, 16 Jan 2022 12:40:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232180AbiAPMkK (ORCPT ); Sun, 16 Jan 2022 07:40:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34694 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230105AbiAPMkK (ORCPT ); Sun, 16 Jan 2022 07:40:10 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DFD8CC061574; Sun, 16 Jan 2022 04:40:09 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 6E35D60EB7; Sun, 16 Jan 2022 12:40:09 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id C3315C36AE7; Sun, 16 Jan 2022 12:40:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1642336808; bh=0M3mNi8vd3Zj2xyIgNHYR+VmiKRhYbTT8j4+kMp55PE=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=quOLF+rjuNkKllZfi84JrrkC8m2HGs0TjuyKKDHKMDzNnSHROSrtwp4menJ1bib1F /coF/67hAcpE25RvVVPSl0h88XjI33fRM307thiwh8EbrzAcLPg1C/Wq/xaWcPRdeU DZp321AjUrrf05+mvVx+IEjj3Dt3it/Bs6O7kRJqGw9rw/8PJN2py2ExXDtUQVb4XK lYcwgIXXMkwIV+HqQLi5U44f70B5u/kM3KABI+6xi+Ge76PSnRmqWpnpVMtgXfwUXe JsCJFEzHoU0N4XldHp1ki3+7n6MNknw6AzRJVO7IK92qOHx/97fJ+S2Rwddr6omGUa GMJCo4sexF5DQ== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id ABC7BF60799; Sun, 16 Jan 2022 12:40:08 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v2] net/smc: Fix hung_task when removing SMC-R devices From: patchwork-bot+netdevbpf@kernel.org Message-Id: <164233680869.3883.15974762125113238993.git-patchwork-notify@kernel.org> Date: Sun, 16 Jan 2022 12:40:08 +0000 References: <1642319022-99525-1-git-send-email-guwen@linux.alibaba.com> In-Reply-To: <1642319022-99525-1-git-send-email-guwen@linux.alibaba.com> To: Wen Gu Cc: kgraul@linux.ibm.com, davem@davemloft.net, kuba@kernel.org, dust.li@linux.alibaba.com, linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org Hello: This patch was applied to netdev/net.git (master) by David S. Miller : On Sun, 16 Jan 2022 15:43:42 +0800 you wrote: > A hung_task is observed when removing SMC-R devices. Suppose that > a link group has two active links(lnk_A, lnk_B) associated with two > different SMC-R devices(dev_A, dev_B). When dev_A is removed, the > link group will be removed from smc_lgr_list and added into > lgr_linkdown_list. lnk_A will be cleared and smcibdev(A)->lnk_cnt > will reach to zero. However, when dev_B is removed then, the link > group can't be found in smc_lgr_list and lnk_B won't be cleared, > making smcibdev->lnk_cnt never reaches zero, which causes a hung_task. > > [...] Here is the summary with links: - [net,v2] net/smc: Fix hung_task when removing SMC-R devices https://git.kernel.org/netdev/net/c/56d99e81ecbc You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html