diff options
| author | Eric Dumazet <edumazet@google.com> | 2023-07-19 21:28:57 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-07-20 12:34:18 -0700 |
| commit | 70f360dd7042cb843635ece9d28335a4addff9eb (patch) | |
| tree | bc0434cfbd9a1d6ecf48ff10f073e031e60808e9 /include | |
| parent | 26023e91e12c68669db416b97234328a03d8e499 (diff) | |
| download | lwn-70f360dd7042cb843635ece9d28335a4addff9eb.tar.gz lwn-70f360dd7042cb843635ece9d28335a4addff9eb.zip | |
tcp: annotate data-races around fastopenq.max_qlen
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>
Diffstat (limited to 'include')
| -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 b4c08ac86983..91a37c99ba66 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -513,7 +513,7 @@ 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, |