From patchwork Fri Mar 8 11:25:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Xing X-Patchwork-Id: 13586718 Received: from mail-pf1-f169.google.com (mail-pf1-f169.google.com [209.85.210.169]) (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 BE7CE5576D for ; Fri, 8 Mar 2024 11:25:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.169 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709897113; cv=none; b=res9HqAmoy7Io+6HJcTX+EmeGC45j1+Ov4o4Atdu+7MC2X5PH4r+y7Tas5KV/+96UjGJVHo8apCBZdf/QyxjQDqWfHzHSaOFnfmCvKFGFAFug+HEgc5c+oK9J3Bdh7eRUB6bwiIjXEhADtM24o3BQ+v6O8ehftHZasUIXRU8gXA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709897113; c=relaxed/simple; bh=GchYU3sRLCHl43EyLRrMwa916/Hymv0L6LEevBMhOfE=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=nED82FFXTyDmHRzJeNyWjsG8Z6BpoCvZJXsoN9BZxGin3mz/66MDSArqirJyLzqkP5yOeLxncLLzi00lWyJRzIA7qnehjXENcE4g63mRAMJoidPcDB4vGreWtB7NePq3wNqYZQvqLjbdvrWuprJfpZfWsEXoW1tfDK0b8BlnCjw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=WaCmS1TC; arc=none smtp.client-ip=209.85.210.169 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WaCmS1TC" Received: by mail-pf1-f169.google.com with SMTP id d2e1a72fcca58-6e6277f72d8so1514202b3a.1 for ; Fri, 08 Mar 2024 03:25:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1709897111; x=1710501911; darn=lists.linux.dev; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=/5JAH19+ljGA+cfTwCom50gS25UogX7DRM80TIVzLZI=; b=WaCmS1TCQ364QAhKx+43Yd1vaJiiXRkQa0/UhfyvCHUppIl0U9GiA++6c25cBsnlGD OgosnWCn7YhSqtPxbncmSGAmEjRMJumFS/L8lYY4M3SjG9a4F3CvCnB6RUAJWu/wfUjW xEUCUxMUGix45y0rTxEcmx0WI2g3uGoMD5rA2vKur96vId8wD5/BHr2K6Lcns1WyiSpH 49j0RvMA30m3p+e7k2UjTUYPUid0mWmjU9WruAMrVzq5EjH7ZKAT10eSMlcOYFUWaGjK 51eZ+w3+41YH3ACf9nD1wjLmuto/3RhidNZlJ11W8xns67zUfFfLMGqvNfbj8ThwWGIF 95Pw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709897111; x=1710501911; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=/5JAH19+ljGA+cfTwCom50gS25UogX7DRM80TIVzLZI=; b=xKzznBi6S7F6LwPQEB3J/T5SLB4YZQjiILMfOtUwtN19R54GlPZoZ4SIHKYHMw364N nM+odSa8d7Ti1mP9go8T/Af6DV8F04dIlMuLsfQntS8O9eb0W9BnjlEEYNf8DKP+S2dE d7MTt1sNopquTHP2+ddxq9S+puTthUcj5uRIC9S3MJPm3iyYnuJ58Dg1zvxqEStw7ow4 /tvqWZgFfYv7/brXe+rboF8+pFeKoD3frBKW65QCyFj6HiN7gACnaFb5xmunLJPAiAjs CKUhEgCRffnEfjS25YTsBQwhZQl0Wh5IaMoOG17u98UYflbiNAootv5BE/aCZsQ/dlIv EMxw== X-Gm-Message-State: AOJu0YytbKybbrc485V1KqthPgGGcK2oj06VDYDLGVzudEzs7qQAZtGO ueI0n6b2swHa0ZTquoLmJYwkIXoywpoxHFX6FguOp2WSu3svpBlZ X-Google-Smtp-Source: AGHT+IHyZKgizh2iozs39rZZNpRM0lghUJVjbwikv1GZSkD0PwOuY/LYlvZhhnIDbP20QhcVqyvRfQ== X-Received: by 2002:a05:6a21:3a83:b0:1a1:8014:930 with SMTP id zv3-20020a056a213a8300b001a180140930mr2430861pzb.57.1709897110943; Fri, 08 Mar 2024 03:25:10 -0800 (PST) Received: from KERNELXING-MB0.tencent.com ([43.132.141.25]) by smtp.gmail.com with ESMTPSA id q7-20020a17090311c700b001db608b54a9sm16049806plh.23.2024.03.08.03.25.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 08 Mar 2024 03:25:10 -0800 (PST) From: Jason Xing To: edumazet@google.com, dsahern@kernel.org, matttbe@kernel.org, martineau@kernel.org, geliang@kernel.org, kuba@kernel.org, pabeni@redhat.com, davem@davemloft.net Cc: mptcp@lists.linux.dev, netdev@vger.kernel.org, kerneljasonxing@gmail.com, Jason Xing Subject: [PATCH net-next 0/2] annotate data-races around sysctl_tcp_wmem[0] Date: Fri, 8 Mar 2024 19:25:02 +0800 Message-Id: <20240308112504.29099-1-kerneljasonxing@gmail.com> X-Mailer: git-send-email 2.33.0 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jason Xing Adding simple READ_ONCE() can avoid reading the sysctl knob meanwhile someone is trying to change it. Jason Xing (2): mptcp: annotate a data-race around sysctl_tcp_wmem[0] tcp: annotate a data-race around sysctl_tcp_wmem[0] net/ipv4/tcp.c | 2 +- net/mptcp/protocol.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)