From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4D5D5380FCA for ; Mon, 18 May 2026 05:07:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779080850; cv=none; b=Ndh7i2GmhvAIq2M79NMkXXuJEoNGM3dIYufOHmE920yMxrJ6ZukAM3vm/++oqK1BRYqId+2Zvk42lquuIaX45XgIPAVT7eEABkP8+7mhxycvSNE+W/r5Q561mUpNOZAyVxT1tqNszHvihDzb4EayNSUL66mwhpitOyVbwI5zeAo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779080850; c=relaxed/simple; bh=lexZUGNO0PNJEtr8UkTVyVCXHd3QoNWeHgyDWj95snM=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=HM537GZfFHf6pOMmgsYf8cmOOO4I4QxE9neoRirqVW5AKCH5OfP2AX7+2lgvqkTkQCDl4EDIahYfRqA2mZgRCsud4etdYhC8Q8oNZIG4J/rXFFV6qG2fhEXTM0Wk1nOfNj2WlczPBNDy6gtpso1Sdv/9mMX4ZeYXTlDjzihe2I8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--kuniyu.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=r0y0IMoi; arc=none smtp.client-ip=209.85.214.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--kuniyu.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="r0y0IMoi" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-2baf7748d0aso17982525ad.1 for ; Sun, 17 May 2026 22:07:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1779080848; x=1779685648; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=F1yKiJK611v41kGbVyszyECAdp0vIakrs65Yges67SM=; b=r0y0IMoi2AI5PalH2aiL5jtTjGf5JrxL4j4yS2QWNj3iXB6rRHasDWpvEG8qv0KT/U mGSlyTClW4YsTT2azG9/hQH7WW5EuolbL02nK2exu5DJlNpIKUzoOHT3qjK2UxOPDI20 3vngmbe30FMY2MeZYAsWT1mzxKNXF5D96YevEO8uRjQJqKM3dDxihD5Ba9wpGdBkjLIS +K6//FkTY0c0Gzxb8O8onJdxa5gNdIgxC2xk+8tf8jwIsqvOr6p6hzqjFGNj7e6DavO1 GsdzX9FDXu6scLhtk84NgX3m7CAjRQA9cGMKjIncbkiVbbNJ8PN7eiUmDfEuOPc+MQuD hKxQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779080848; x=1779685648; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=F1yKiJK611v41kGbVyszyECAdp0vIakrs65Yges67SM=; b=R3TisxAjrLR96x2LoL4eAa5DHfSSVVtsyvteGl2fGqSKPBZoMyJC38C+ktr1uicw1O n1EUhvxVD2fCnjqefewxxXpfvDoK5bKE+4alBhVhyulw8hylonJ0RXjGJz1eEcKlDZwh Sfbl2iJS2o7ZDLq5hsjoWaUuaHOv7DCxnlMaJon/AK7qYX11IyQ+iPmGJCug6b0KxB7N ZL1TO/r3hrAGVI/TnYfDM6BdUr2puRxs+Gn0fRH5t3/nuDDzqQRVgLeWEE25BDxkCY/1 isXGh9N5eyixFYcna/p4weOXlCPokxfJp6QPilI3XqpqtUGNLAdjKbLGfBhqEFzDFPl9 B45g== X-Forwarded-Encrypted: i=1; AFNElJ/mSzojuMQyIEHsKKmsNN/9qkfu2mIjyZgy6emfrXQjc2zL6Wx3mO657vxAP8vkZfkuBtRj4VA=@vger.kernel.org X-Gm-Message-State: AOJu0YxkzDSb7tMIiRT8AdwR656DvxG5PocnUDyWQEd/zhzudw5haP63 mHJMO83jZSnwDu4SvwxmokzNMj+E1O31CPs+M7IvAYa/yR7neyRt5k2puZIShcejPUWu8ZQU1Pk oqIT7vg== X-Received: from plsa8.prod.google.com ([2002:a17:902:b588:b0:2b0:4f86:510]) (user=kuniyu job=prod-delivery.src-stubby-dispatcher) by 2002:a17:903:f87:b0:2bd:b6f4:4500 with SMTP id d9443c01a7336-2bdb6f4475dmr66683595ad.11.1779080848417; Sun, 17 May 2026 22:07:28 -0700 (PDT) Date: Mon, 18 May 2026 05:07:07 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.54.0.563.g4f69b47b94-goog Message-ID: <20260518050726.318824-1-kuniyu@google.com> Subject: [PATCH v1 net-next 0/5] udp_tunnel: Speed up UDP tunnel device destruction (Part II) From: Kuniyuki Iwashima To: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn Cc: Simon Horman , Kuniyuki Iwashima , Kuniyuki Iwashima , netdev@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Most of the UDP tunnel devices called synchronize_rcu() twice during destruction, for example, vxlan had 1) synchronize_rcu() in udp_tunnel_sock_release() 2) synchronize_net() in vxlan_sock_release() The former was already removed by: https://lore.kernel.org/netdev/20260502031401.3557229-1-kuniyu@google.com/ This series removes the latter. Patch 1 & 2 & 4 remove synchronize_net() placed before udp_tunnel_sock_release(). Patch 3 removes yet another unnecessary synchronize_net() in geneve_unquiesce(). Patch 5 is a follow-up patch for a sparse report by kernel test robot. Kuniyuki Iwashima (5): vxlan: Remove synchronize_net() in vxlan_sock_release(). geneve: Remove synchronize_net() in geneve_sock_release(). geneve: Remove synchronize_net() in geneve_unquiesce(). bareudp: Remove synchronize_net() in bareudp_sock_release(). bareudp: Use rtnl_dereference() in bareudp_sock_release(). drivers/net/bareudp.c | 3 +-- drivers/net/geneve.c | 2 -- drivers/net/vxlan/vxlan_core.c | 1 - 3 files changed, 1 insertion(+), 5 deletions(-) -- 2.54.0.563.g4f69b47b94-goog