Received: by 2002:a25:824b:0:0:0:0:0 with SMTP id d11csp402562ybn; Tue, 1 Oct 2019 23:26:09 -0700 (PDT) X-Google-Smtp-Source: APXvYqyiaz/NPwhH08/1Tccl6kp7WZ5m/BjvplGQ+XjifAjLeA8yd6c0iFih4dM/M9X2oZfgj8J7 X-Received: by 2002:a50:af26:: with SMTP id g35mr2094192edd.129.1569997569835; Tue, 01 Oct 2019 23:26:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1569997569; cv=none; d=google.com; s=arc-20160816; b=tHOqDfG6GDycLY4quyGOW4WEdzH0lcsX/fqKo2s0davhvRdDEQm8orUxHhOTKwe30d NExg7C/FX7d3XUR4juBi5SEkBzRvpqjopX09/h91e1FuNQ7lF5BQ3D9QAK0VSmn7rk5n yFE/65+b3Kke9gzEqMB8/HxNB0r4kHMTGOtMCt2Pz0MKveXRbRwoxXwKM/gRvZPS6ex+ DwqkxEI9hz6EytaO8bDAknQAEssSLzoL1LdjusFSHt/u8sWuYuvBCyXHPdA4p52AsoEx 2fBQ5j5iVCpgYOeOWoxx5DzmUxzhiezhQaqwya94l74KUPxnXxocyz7jyH5pTixF6KE8 ICvg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :references:in-reply-to:from:subject:cc:to:message-id:date; bh=uStAE7GC9GEzBdcUPScS8I1LrBkPZbTPhbLl6meFsDU=; b=ZHvKHvblF6V05GhNle3bug80rwu/4gVTNWoPoZ37osZbl4LBInCw9eQ+3RRP6L8YFq +NO8FZd33pcleFOYtJO6tPV64WOnl0l9qYIV7SPEC0rQdAYaxf++mBo9M8GqAKrsIGvU G4EME+KvpU8+H55j2n/IIsNGTRHC/Uz3zU4fk0QQeERzfK/rRh5/Zy23MwrMo/WXLdjA tcrv4L1SAKWVoQnrwM5iRyaxYjH5ZnXh0XsukpBQSaxJt4qdA6PQjzobZoKIwvt3NpHD G6dNh6+26HtqNy3yEevR4LTLuQiThVeY3rE+UMppaPobgwfpil8byLo1xGM62AG3btEP +7tQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w26si10524129edd.305.2019.10.01.23.25.45; Tue, 01 Oct 2019 23:26:09 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729670AbfJBBX6 (ORCPT + 99 others); Tue, 1 Oct 2019 21:23:58 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:55264 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728984AbfJBBX5 (ORCPT ); Tue, 1 Oct 2019 21:23:57 -0400 Received: from localhost (unknown [IPv6:2603:3023:50c:85e1:b5c5:ae11:3e54:6a07]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 1003014D65306; Tue, 1 Oct 2019 18:23:56 -0700 (PDT) Date: Tue, 01 Oct 2019 21:23:55 -0400 (EDT) Message-Id: <20191001.212355.540884408544073853.davem@davemloft.net> To: decui@microsoft.com Cc: kys@microsoft.com, haiyangz@microsoft.com, sthemmin@microsoft.com, sashal@kernel.org, stefanha@redhat.com, gregkh@linuxfoundation.org, arnd@arndb.de, deepa.kernel@gmail.com, ytht.net@gmail.com, tglx@linutronix.de, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hyperv@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, mikelley@microsoft.com, sgarzare@redhat.com, jhansen@vmware.com Subject: Re: [PATCH net v3] vsock: Fix a lockdep warning in __vsock_release() From: David Miller In-Reply-To: <1569868998-56603-1-git-send-email-decui@microsoft.com> References: <1569868998-56603-1-git-send-email-decui@microsoft.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Tue, 01 Oct 2019 18:23:56 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dexuan Cui Date: Mon, 30 Sep 2019 18:43:50 +0000 > Lockdep is unhappy if two locks from the same class are held. > > Fix the below warning for hyperv and virtio sockets (vmci socket code > doesn't have the issue) by using lock_sock_nested() when __vsock_release() > is called recursively: ... > Tested-by: Stefano Garzarella > Signed-off-by: Dexuan Cui Applied, thanks.