diff options
| author | Eric Dumazet <edumazet@google.com> | 2023-03-15 20:57:41 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-03-17 08:25:05 +0000 |
| commit | cee1af825d65b8122627fc2efbc36c1bd51ee103 (patch) | |
| tree | 0ac92afa20149068ef410606e944163ba6a80a14 /net/ipv4/tcp_timer.c | |
| parent | 731b73dba359e3ff00517c13aa0daa82b34ff466 (diff) | |
tcp: annotate lockless accesses to sk->sk_err_soft
This field can be read/written without lock synchronization.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
| -rw-r--r-- | net/ipv4/tcp_timer.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index cb79127f45c3..8823e2182713 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -67,7 +67,7 @@ u32 tcp_clamp_probe0_to_user_timeout(const struct sock *sk, u32 when) static void tcp_write_err(struct sock *sk) { - sk->sk_err = sk->sk_err_soft ? : ETIMEDOUT; + sk->sk_err = READ_ONCE(sk->sk_err_soft) ? : ETIMEDOUT; sk_error_report(sk); tcp_write_queue_purge(sk); @@ -110,7 +110,7 @@ static int tcp_out_of_resources(struct sock *sk, bool do_reset) shift++; /* If some dubious ICMP arrived, penalize even more. */ - if (sk->sk_err_soft) + if (READ_ONCE(sk->sk_err_soft)) shift++; if (tcp_check_oom(sk, shift)) { @@ -146,7 +146,7 @@ static int tcp_orphan_retries(struct sock *sk, bool alive) int retries = READ_ONCE(sock_net(sk)->ipv4.sysctl_tcp_orphan_retries); /* May be zero. */ /* We know from an ICMP that something is wrong. */ - if (sk->sk_err_soft && !alive) + if (READ_ONCE(sk->sk_err_soft) && !alive) retries = 0; /* However, if socket sent something recently, select some safe |