diff options
| author | Eric Dumazet <edumazet@google.com> | 2023-08-04 17:46:15 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-08-06 10:24:55 +0300 |
| commit | a81722ddd7e4d76c9bbff078d29416e18c6d7f71 (patch) | |
| tree | 83bf415b9788593c662c6fb41522bfaddbdf8ac9 /net/ipv4/tcp_timer.c | |
| parent | 84485080cbc1e5a011e7549966739df4cec158b1 (diff) | |
| download | linux-a81722ddd7e4d76c9bbff078d29416e18c6d7f71.tar.xz | |
tcp: set TCP_LINGER2 locklessly
tp->linger2 can be set locklessly as long as readers
use READ_ONCE().
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@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 | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index f99e2d06ae7c..d45c96c7f5a4 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -714,7 +714,7 @@ static void tcp_keepalive_timer (struct timer_list *t) tcp_mstamp_refresh(tp); if (sk->sk_state == TCP_FIN_WAIT2 && sock_flag(sk, SOCK_DEAD)) { - if (tp->linger2 >= 0) { + if (READ_ONCE(tp->linger2) >= 0) { const int tmo = tcp_fin_time(sk) - TCP_TIMEWAIT_LEN; if (tmo > 0) { |