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authorEric Dumazet <edumazet@google.com>2024-04-04 11:42:31 +0000
committerJakub Kicinski <kuba@kernel.org>2024-04-05 22:32:37 -0700
commitf410cbea9f3d2675b4c8e52af1d1985b11b387d1 (patch)
treee407bf74e04719f2aadbec9acd9ac32501fe67b0 /net/mptcp/sockopt.c
parent571faefe09f5aae894c4373179569fbc2c2a3114 (diff)
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tcp: annotate data-races around tp->window_clamp
tp->window_clamp can be read locklessly, add READ_ONCE() and WRITE_ONCE() annotations. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Jason Xing <kerneljasonxing@gmail.com> Link: https://lore.kernel.org/r/20240404114231.2195171-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/sockopt.c')
-rw-r--r--net/mptcp/sockopt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/mptcp/sockopt.c b/net/mptcp/sockopt.c
index 73fdf423de44..9d5d42a77bcc 100644
--- a/net/mptcp/sockopt.c
+++ b/net/mptcp/sockopt.c
@@ -1523,7 +1523,7 @@ int mptcp_set_rcvlowat(struct sock *sk, int val)
slow = lock_sock_fast(ssk);
WRITE_ONCE(ssk->sk_rcvbuf, space);
- tcp_sk(ssk)->window_clamp = val;
+ WRITE_ONCE(tcp_sk(ssk)->window_clamp, val);
unlock_sock_fast(ssk, slow);
}
return 0;