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| author | Eric Dumazet <edumazet@google.com> | 2023-07-19 21:28:57 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-11 11:45:27 +0200 |
| commit | cc4122c81d211307c7cd2ddf7455ee171d867983 (patch) | |
| tree | 88de7db3559d90cdaaf0add14ae7f3182b4cce7b /include/linux | |
| parent | 73e2b8a15ea42ccb2d4bcd26e55d4092a1a8e4e5 (diff) | |
| download | linux-stable-cc4122c81d211307c7cd2ddf7455ee171d867983.tar.gz linux-stable-cc4122c81d211307c7cd2ddf7455ee171d867983.tar.bz2 linux-stable-cc4122c81d211307c7cd2ddf7455ee171d867983.zip | |
tcp: annotate data-races around fastopenq.max_qlen
[ Upstream commit 70f360dd7042cb843635ece9d28335a4addff9eb ]
This field can be read locklessly.
Fixes: 1536e2857bd3 ("tcp: Add a TCP_FASTOPEN socket option to get a max backlog on its listner")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230719212857.3943972-12-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/tcp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 621ab5a7fb8f..0d63a428e6f9 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -460,7 +460,7 @@ static inline void fastopen_queue_tune(struct sock *sk, int backlog) struct request_sock_queue *queue = &inet_csk(sk)->icsk_accept_queue; int somaxconn = READ_ONCE(sock_net(sk)->core.sysctl_somaxconn); - queue->fastopenq.max_qlen = min_t(unsigned int, backlog, somaxconn); + WRITE_ONCE(queue->fastopenq.max_qlen, min_t(unsigned int, backlog, somaxconn)); } static inline void tcp_move_syn(struct tcp_sock *tp, |