From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mta1.migadu.com (out-15.mta1.migadu.com [95.215.58.15]) (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 E25491F0E34 for ; Mon, 17 Aug 2026 01:24:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786929902; cv=none; b=BXqUfNjoXSCfgrwycw1U/tvZYqt+NLAiutEPXmV/lhsRszZIEhEUPMD5oLH/lpyGUy8PHsmqK8zkh7p9uMFNfi3Dyji8RNQZN86WEEY3QSEYQlfZQkWeDQWdMLdfXfAP7sjIZ5TBEjlj/9PCAlHx6ArCIKeB4PYIZrHGfyLf4rA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786929902; c=relaxed/simple; bh=boot3dyDY56+IhbQ/UMO/jEDxsAdWnX+2l4cGuQflo8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=quI3w75YianqjlBxgWGvrrURx3H7zVhiQi4xjSlfxbpjGX3kFygVv19zWBMO0LA0/TLVApni2LgnuIhSSsxvv3wCRb1Njte3WpPZ7dxiGMI8bkuAp9NdpwGE3l66WI88pPlENYsd3r9xhSDwEE8Lon2W5LRHvRidbZ4cjEEh3Nc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=Arm8EEsl; arc=none smtp.client-ip=95.215.58.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="Arm8EEsl" X-Envelope-To: mptcp@lists.linux.dev DKIM-Signature: a=rsa-sha256; bh=boot3dyDY56+IhbQ/UMO/jEDxsAdWnX+2l4cGuQflo8=; c=simple/simple; d=linux.dev; h=from:to:subject:date:message-id:mime-version:content-type; s=key1; t=1786929897; v=1; x=1787534697; b=Arm8EEslNpY1kxEb1voWXhfy4jvgs/gFbsMoMmDgZyiN2K37R1xpu5qAjQawv11V6Xz+Cfri D/O6G5yvlVrjh0jJBloJQPmdxX6L17NcJp5uDWsrZGEbfGHzHeCXldjkjx3+cIhSdM0PN1m6ljQ zvlNW7sr8fXzTf41zWaurYCs= X-Envelope-To: mptcp@lists.linux.dev Received: from thinkbook16p.. (223.70.159.239) by smtp.migadu.com with ESMTPS id 568be7600cadde52; Mon, 17 Aug 2026 01:24:57 +0000 X-Migadu-Flow: FLOW_OUT From: Gang Yan To: mptcp@lists.linux.dev Cc: Gang Yan Subject: [PATCH mptcp-next 0/3] mptcp: avoid data-races around the sysctls Date: Mon, 17 Aug 2026 09:24:49 +0800 Message-ID: <20260817012452.7519-1-gang.yan@linux.dev> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Gang Yan Hi, As decribed in [1], this series is for addressing the KCSAN issues in sysctls. Following the tcp_congestion_control() model, patch 1 and 2 now store pointers to the immutable ops and swap them atomically via xchg(). Patch 3 (from Matthieu) covers the remaining scalar sysctls with READ_ONCE(). [1] https://github.com/multipath-tcp/mptcp_net-next/issues/626 Gang Yan (2): mptcp: sched: change scheduler sysctl atomically mptcp: pm: change path_manager sysctl atomically Matthieu Baerts (NGI0) (1): mptcp: use READ_ONCE() over sysctls net/mptcp/ctrl.c | 116 ++++++++++++++++++++++++++++++------------- net/mptcp/pm.c | 3 +- net/mptcp/protocol.c | 5 +- net/mptcp/protocol.h | 6 +-- net/mptcp/sched.c | 2 +- 5 files changed, 91 insertions(+), 41 deletions(-) -- 2.43.0