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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 858E0C4332F for ; Tue, 19 Oct 2021 12:10:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6E9256137D for ; Tue, 19 Oct 2021 12:10:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235206AbhJSMMW (ORCPT ); Tue, 19 Oct 2021 08:12:22 -0400 Received: from mail.kernel.org ([198.145.29.99]:47162 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230129AbhJSMMV (ORCPT ); Tue, 19 Oct 2021 08:12:21 -0400 Received: by mail.kernel.org (Postfix) with ESMTPS id 85ECB6115B; Tue, 19 Oct 2021 12:10:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1634645408; bh=EwZRvJnCszVQ44JnJffy29m+a7HL1Huzi17+KrmGPV4=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=nTpWXSEkCmxFlITm0IPluR2gyrCuHg6iMxADXpBMCS8AloOYCjWXhZY8CTgl9SJmM 3RTfQv+5S8damDkb6g1n9S8q7kr3L4oQaYox34BKTA35cWrbbXP3PIVTnxm7FYWRbj VfTRLO9u1rwrujLmlJ0pNNsR2pc6QZUwi1OAG7PWDtj04JGeZZj5o7Jh+zwOVJs6Lq +lv1dnDXrCKAZtTal5DB2Acky01jK1DSv0zVB0N1WQMXNih6DBANBkZvC8w12SH+6g 1rwpgsqIvZTtI+W7nhA4YCdx6+GJbfbun15ORXd0MM/Wh9eSPGgWX8/Y8HR+sQyUkK cxbx1gJ3W6NuQ== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next] net: sched: Allow statistics reads from softirq. From: patchwork-bot+netdevbpf@kernel.org Message-Id: <163464540849.1998.7367449316991483244.git-patchwork-notify@kernel.org> Date: Tue, 19 Oct 2021 12:10:08 +0000 References: <20211019101204.4a7m2i3u5uoqrc6b@linutronix.de> In-Reply-To: <20211019101204.4a7m2i3u5uoqrc6b@linutronix.de> To: Sebastian Andrzej Siewior Cc: eric.dumazet@gmail.com, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, kuba@kernel.org, davem@davemloft.net, pablo@netfilter.org, kadlec@netfilter.org, fw@strlen.de, jhs@mojatatu.com, xiyou.wangcong@gmail.com, jiri@resnulli.us, a.darwish@linutronix.de, 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 Tue, 19 Oct 2021 12:12:04 +0200 you wrote: > Eric reported that the rate estimator reads statics from the softirq > which in turn triggers a warning introduced in the statistics rework. > > The warning is too cautious. The updates happen in the softirq context > so reads from softirq are fine since the writes can not be preempted. > The updates/writes happen during qdisc_run() which ensures one writer > and the softirq context. > The remaining bad context for reading statistics remains in hard-IRQ > because it may preempt a writer. > > [...] Here is the summary with links: - [net-next] net: sched: Allow statistics reads from softirq. https://git.kernel.org/netdev/net-next/c/e22db7bd552f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html