From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794348607; b=oxAhbwpfwwFKkPy4RWVe6BHBZg2Cr1GWaNlz3cdH3Wmyx2wbnEAoyQ7gkENXBkiJ7BHf dcEUTInLJl7AdSvVrDioWQpJYVd390n4TeG1IxefLaedi6Y+zkRxFNIr/rg7vibpvYQPw W01gP3l9gbBXMnUwf0qHCAuqnj2Mmwy7Dg7PIpPaLPAUKTcnU9cYI3Po9lu0FY5Sx6LaG njTXrGovoKOi0oCIP6s1giWE2R/rQwVDgbJbedb79u9FMH63x+ux9uVLouyBbunaj2mNU /ClL0OlaAJwjZSaFdu2bmEXfPa98fEOPtWer+7AEKZhXG0b9ky/rPSvfD7KcddWuw0Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794348607; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=TGLwR1Msc2/5rMD5ND1Y/b0Ga8dYyfuPWs81S9wv3jQ=; b=RS+4vrUhC9PPAbJYRLoszgEzZjhZCsggX8sMySrny8xRhpFfF3lfXHSLfmcGo6f0LiRn aRNWPUc0qQyuGpU3PqHUHmyErFxLWvlu0pPuTvLlnuijzgPjYcPoz7+pNR+9NgLuH4SCD 7+KybxqzJiLGhkeO+e1a8qmPmqNOTum5TaLHuX7xrPCBbNlEG4HIrfvLTFeKF4++EfJ/i GUoBgYuSXbZxyPnG3vsCgm+P7waA5MWjIVGMk+oLRIVi533+3te+aUAeSZ9Ijl6gBAIUR wV61KiK9nz70lZBjq8nkke54UUeGfNzqxf28QvzWapItVq/FcnvTxW4PLYTUsHCgnGA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=BN0Oeom+; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0AC5B606FFEE; Tue, 10 Nov 2026 22:10:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=BN0Oeom+ Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6B3F61F008A1; Tue, 10 Nov 2026 22:10:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794348606; bh=TGLwR1Msc2/5rMD5ND1Y/b0Ga8dYyfuPWs81S9wv3jQ=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=BN0Oeom+eSyE43xeoI1Gor5+Swz7+IkujbxHHBV9Rn0qOxFrpRDCgFXwezUjT8Bfv Bq3ejITt8ogg1NEARHBMzsp8EpMhOeDJVo9AeTjsQqEW9qGlYOsGwyB7Mqu2LtEw1K mhyEDjP+2HsVGppLkIAxJb3fCR8aYjR1lmZh5zSMaYU05j3kKkuDxADqejEYz6mee3 /jgN6t5rHs6tjSdzzrZpJKuuuYedhI/MK4W088Gseax9x0Y1xsBIiAHPjbR1nabjcg MJ925uA/qYmKFqN6uSLzheK3tjrB/QQxLCXvQ/WxTdQl1W/w4yygBf9Kz96qY5cCLx RNOB/+k3IyMQQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 5E11439E8A40; Tue, 10 Nov 2026 22:10:06 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v2] ipv4: route: don't blackhole in-use routes when retiring fnhe routes From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179434860518.85266.421970211884178482.git-patchwork-notify@kernel.org> Date: Tue, 10 Nov 2026 22:10:05 +0000 References: <20261105182640.2999521-1-me@chasehil.tz> In-Reply-To: <20261105182640.2999521-1-me@chasehil.tz> To: Chase Hiltz Cc: netdev@vger.kernel.org, dsahern@kernel.org, idosch@nvidia.com, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, weiwan@google.com, linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 5 Nov 2026 14:26:40 -0400 you wrote: > When a route cached in a nexthop exception (fnhe) is replaced or > flushed, rt_bind_exception() and fnhe_flush_routes() call > dst_dev_put() on it. That sets dst->dev to blackhole_netdev and > dst->input/output to dst_discard*(), but other CPUs can still be > using the route, e.g. as a noref dst taken from the fnhe under RCU. > Packets that reach dst_input() or dst_output() after that are dropped. > > [...] Here is the summary with links: - [net,v2] ipv4: route: don't blackhole in-use routes when retiring fnhe routes https://git.kernel.org/netdev/net/c/ae89f2724db1 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html