From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 274911DE2A4; Mon, 27 Jan 2025 23:10:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738019417; cv=none; b=VmwzN0UBFARB4gFj4WtSZQiMsh8zGshLC6IXBUrasStLQ92I6L142/McGQYD0je388FIdaC/EBPO1vts7j3i8kaYi7DYj31tVYny7R5ZyJpnk3H9YLLBm48o1l9jW0lW1iTBfFxzqN2q8BN3Q0YZQd/HXjE0AtnCnBEuiaJUdck= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738019417; c=relaxed/simple; bh=ur3IXgy67PDPGOlwZ0Qk5VWQfYIUX2hWyoLvYpp7sHg=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=k1PWZFuYbGSAi/DOSkc8YeQtCHawJU2Njlv9DZUD0nwX+Zj1jUvwvEs/sAE5J1WZXkTfrjOfwZkxaMo2OO6bwQklXTvSuedWjX6RyxSXgnCnle2bxghJg5coineBohUNHna+vMmYz+gLr2LFWfG96G9whNJTi4MjA4ktwEHK/7Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RgQYpC//; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="RgQYpC//" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 966BFC4CEE0; Mon, 27 Jan 2025 23:10:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1738019416; bh=ur3IXgy67PDPGOlwZ0Qk5VWQfYIUX2hWyoLvYpp7sHg=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=RgQYpC//P+7gCQrmOLgIfxQgOG+K/zjreoWTr/XLOFZB0lClU+2+BPlYcGPf5UBlR DGvXwF6qngqbwAen6bSdN29uVDi8IJgnGOPlJKHhaoZDsaZCW8EGdfULZmu1VipWQq 6g386aICMTAMZ2eb0908BPlHyG00VMQVCrSFqKqy+Li57k4X1/7Z3deF8NonHhL4YY BBFjElWmQJt8I8daf58TTCY8e8GqYXy8XetAVyFpEmSNzsWrArOrAxDv+HXOta6VMi l67x1HaObJ9EgvQ+udYaIVb9X4qV2TtTY1Bv4nNHNvcvMJ5VkZbK7iY13bkyyWQ65E ZptlzQ5iYQuOw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 71C6A380AA63; Mon, 27 Jan 2025 23:10:43 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] rxrpc, afs: Fix peer hash locking vs RCU callback From: patchwork-bot+netdevbpf@kernel.org Message-Id: <173801944199.3253418.8964414973990474171.git-patchwork-notify@kernel.org> Date: Mon, 27 Jan 2025 23:10:41 +0000 References: <2095618.1737622752@warthog.procyon.org.uk> In-Reply-To: <2095618.1737622752@warthog.procyon.org.uk> To: David Howells Cc: netdev@vger.kernel.org, marc.dionne@auristor.com, kuba@kernel.org, edumazet@google.com, pabeni@redhat.com, horms@kernel.org, davem@davemloft.net, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 23 Jan 2025 08:59:12 +0000 you wrote: > In its address list, afs now retains pointers to and refs on one or more > rxrpc_peer objects. The address list is freed under RCU and at this time, > it puts the refs on those peers. > > Now, when an rxrpc_peer object runs out of refs, it gets removed from the > peer hash table and, for that, rxrpc has to take a spinlock. However, it > is now being called from afs's RCU cleanup, which takes place in BH > context - but it is just taking an ordinary spinlock. > > [...] Here is the summary with links: - [net] rxrpc, afs: Fix peer hash locking vs RCU callback https://git.kernel.org/netdev/net/c/79d458c13056 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html