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From: Gang Yan <gang.yan@linux.dev>
To: mptcp@lists.linux.dev
Cc: Gang Yan <yangang@kylinos.cn>
Subject: [PATCH mptcp-next 0/3] mptcp: avoid data-races around the sysctls
Date: Mon, 17 Aug 2026 09:24:49 +0800	[thread overview]
Message-ID: <20260817012452.7519-1-gang.yan@linux.dev> (raw)

From: Gang Yan <yangang@kylinos.cn>

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


             reply	other threads:[~2026-08-17  1:24 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-17  1:24 Gang Yan [this message]
2026-08-17  1:24 ` [PATCH mptcp-next 1/3] mptcp: sched: change scheduler sysctl atomically Gang Yan
2026-08-17  1:24 ` [PATCH mptcp-next 2/3] mptcp: pm: change path_manager " Gang Yan
2026-08-17  1:24 ` [PATCH mptcp-next 3/3] mptcp: use READ_ONCE() over sysctls Gang Yan
2026-08-17  2:31 ` [PATCH mptcp-next 0/3] mptcp: avoid data-races around the sysctls MPTCP CI

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