From patchwork Fri Nov 15 16:52:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthieu Baerts X-Patchwork-Id: 13876624 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 4E22D1CDA14; Fri, 15 Nov 2024 16:52:47 +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=1731689568; cv=none; b=Ri5lgoSf4t5B3fmFOlmWrXipYB22VmrM14ghowrcv3U4p44pT/hDegxAcwZPJ5TgFcgP/gO/2LNPMmRox107JDJ0XfrWVyxVcL84JIEiuE7VPCuFTV3qUtxRZNHZT3GkXkzcD5HaQAIFAkgyNVfX/1w535eAp46ilzQUUBRW2A0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731689568; c=relaxed/simple; bh=wJhmaIhoyc2bcieT7PTyq6TP4mqpolXYg20mo06tJQI=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=ZrfD89iFpKfCNyZJfYJ3FuAPJVtnbinmQ1fNZJnbHOHTcV7ESDMeZXGDo/IeGFROs/UT2fD/X8AH7dvafI8BQan4CCsPD6hjUe0YUHxVid2PaHKW3MXh7/wPnMUghRsLnilyXNHZ2w7JRSiVMu0zs3EM2Sp3gVTIa8wrTW2G3AA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=W+F3bJTR; 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="W+F3bJTR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 790D2C4CECF; Fri, 15 Nov 2024 16:52:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731689567; bh=wJhmaIhoyc2bcieT7PTyq6TP4mqpolXYg20mo06tJQI=; h=From:Subject:Date:To:Cc:From; b=W+F3bJTRRbgWwty1WeFa7oLcTP2zfSkvlzIYvexs5Gt4R02n6I+wQY7P7kpSpRDPs H8wivok+rtwMsJjQMNO/naLzQWf4KOfoBAPwxgjUbZUcFWmakCZohyXONJklisODEy vq36kj+XLcfYtvmHp/1Q+EtbAsErAR5QoKaZ5RhwXhQozOk94zUraidpcefW5bUBqy zDgWrT3WZBX1RW3OGAKkv6hhNp+0Pnb0hH0NLdiYS+6Br5cgS1WzG9rLGXIKxGRqLm 2k1MDghJNtrpUaGMXFaLsSqCJMggPycNYd4r1MXaZUmggVtKa3sGaJY5wIwsRIgXUy NGdwJFX0midHg== From: "Matthieu Baerts (NGI0)" Subject: [PATCH net-next 0/2] mptcp: pm: lockless list traversal and cleanup Date: Fri, 15 Nov 2024 17:52:33 +0100 Message-Id: <20241115-net-next-mptcp-pm-lockless-dump-v1-0-f4a1bcb4ca2c@kernel.org> Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAFF8N2cC/zWNQQrDMAwEvxJ0rsAKNbT9SunBOEorGjvCckog5 O8xgR7mMIfZ3cC4CBs8ug0K/8Rkzk3o0kH8hPxmlKE59K6/EpHHzLWxVkxao6ImnOb4ndgMhyU pBh+cY0/jje7QVrTwKOv58IR/DK99PwCQzhnHewAAAA== X-Change-ID: 20241115-net-next-mptcp-pm-lockless-dump-a5a00e51f819 To: mptcp@lists.linux.dev, Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, "Matthieu Baerts (NGI0)" , Geliang Tang X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=782; i=matttbe@kernel.org; h=from:subject:message-id; bh=wJhmaIhoyc2bcieT7PTyq6TP4mqpolXYg20mo06tJQI=; b=owEBbQKS/ZANAwAIAfa3gk9CaaBzAcsmYgBnN3xd3ZG2hgDG8ZszYlPQIBfmCnvijUEJ4J7+5 jIjykEb4tCJAjMEAAEIAB0WIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZzd8XQAKCRD2t4JPQmmg c393EADbO7Khhkxkg0Y+85y2WBNlH2mo5Jm9fSbd8aeV/lsOx1qYvrWvev5AJ/HH6gfalUhiqKC TeBrxPEsgn/h9obWTjtwzh1sLiKvzPoQ+ZPg44fKiUDWvBAFqS2L0KmMXrxjHCjntB9JYIeYpLP 7Lvr/DKu7OPQca2GTXtt6Fu8xNPf952Q4KYLCctuEnuhckTs/OgFQXgs1n2dRvfn+nnT4y+8ryq bXhj7voYOF+k7rE5L4ju3YdenmJldCXE4qUMY0hJdF7ezITWbTf4fgSfbIHSlUbjHQoe4Ep/8ni QOsjmHl+OjjFRb+tyMF6QqusG/6MdQde6SKa6Vyr+ET+8FoJ13TnNUgI1GJERB/AjupoASt70W9 gx/dOihdDfoccnk8t9IYQ/w5lwvAM0AWlw6UL/8uQ8KAUUvdj1a75bgnrF+GVa+Ypkwpa2BslaX SAF/1owaMQ6nJH8DZGtTWFkXdx1JUb3132GMnNgmdtz9xY7I/IVZjJOlK/fPp4PzH9SKLjedo6o EfmtQV7UC/6h2H6vv5zLT6zq/gMwOTt0tt6RUS+neLlAscDAaGEGXXybB7Dsw071Kk5vR0jPFBV 8A2RqQW8bzW9byznuXqlzuv66fyaotQ/TMspNa2yPXGEmFQk9+Wfh2NPrzWxFxP7p8BlmDowCdI 5Q1e8Uh6nEsjvDQ== X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 Here are two patches improving the MPTCP in-kernel path-manager. - Patch 1: the get and dump endpoints operations are iterating over the endpoints list in a lockless way. - Patch 2: reduce the code duplication to lookup an endpoint. Signed-off-by: Matthieu Baerts (NGI0) --- Geliang Tang (1): mptcp: pm: avoid code duplication to lookup endp Matthieu Baerts (NGI0) (1): mptcp: pm: lockless list traversal to dump endp net/mptcp/pm_netlink.c | 33 +++++++++++++-------------------- 1 file changed, 13 insertions(+), 20 deletions(-) --- base-commit: dfc14664794a4706e0c2186a0c082386e6b14c4d change-id: 20241115-net-next-mptcp-pm-lockless-dump-a5a00e51f819 Best regards,