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 A0FF5C433FE for ; Mon, 13 Dec 2021 15:00:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239501AbhLMPAN (ORCPT ); Mon, 13 Dec 2021 10:00:13 -0500 Received: from dfw.source.kernel.org ([139.178.84.217]:57842 "EHLO dfw.source.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234277AbhLMPAL (ORCPT ); Mon, 13 Dec 2021 10:00:11 -0500 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 75CBA61119 for ; Mon, 13 Dec 2021 15:00:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id D7421C3460B; Mon, 13 Dec 2021 15:00:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1639407610; bh=eE0kQD32j0z6vpzjnApzWp1G0DUmPqRaGs5VuDgO4nY=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=iHI4SHelq+u8ivowJgKdJvzYFDqOSMeN58nTotP6C0iMm/DVn44hRqFKxw8vxZUL8 KsiR3SxfFGR4t6pPPZEegxtP3hd5CyNBORzC6dqXRncYnM/aCd7S56oEY/sLkwGM3w 05AhMwv7msOuKAmuPW13jh73bN22Q3QJu7DTARjTzR4sRK2cWoMrEFAc+Tyx5RJFF3 QQF7akiadCsfKzx6cxJwNsZFzzDcnKY0hPkzQRUqvs0Nh3YVT3VKu1tIRrV0iuySCZ +/2Nwy4tMYuhLQkggYomm5VYrt5pP03SEJ5vSjRp3fHZAxwfhbNbKqotOVOW/gYaww Lz3l9B+VAgkvA== Received: from pdx-korg-docbuild-2.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by pdx-korg-docbuild-2.ci.codeaurora.org (Postfix) with ESMTP id C853E60A3C; Mon, 13 Dec 2021 15:00:10 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v2 net-next] net: dev: Always serialize on Qdisc::busylock in __dev_xmit_skb() on PREEMPT_RT. From: patchwork-bot+netdevbpf@kernel.org Message-Id: <163940761081.26947.10343673170662846351.git-patchwork-notify@kernel.org> Date: Mon, 13 Dec 2021 15:00:10 +0000 References: In-Reply-To: To: Sebastian Andrzej Siewior Cc: kuba@kernel.org, netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com, tglx@linutronix.de Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (master) by David S. Miller : On Mon, 13 Dec 2021 11:53:29 +0100 you wrote: > The root-lock is dropped before dev_hard_start_xmit() is invoked and after > setting the __QDISC___STATE_RUNNING bit. If the Qdisc owner is preempted > by another sender/task with a higher priority then this new sender won't > be able to submit packets to the NIC directly instead they will be > enqueued into the Qdisc. The NIC will remain idle until the Qdisc owner > is scheduled again and finishes the job. > > [...] Here is the summary with links: - [v2,net-next] net: dev: Always serialize on Qdisc::busylock in __dev_xmit_skb() on PREEMPT_RT. https://git.kernel.org/netdev/net-next/c/64445dda9d83 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html