diff options
| author | Eric Dumazet <edumazet@google.com> | 2025-06-20 15:55:36 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-06-23 17:05:12 -0700 |
| commit | 935b67675a9f233aa4ac4ae6452b2cc45418d839 (patch) | |
| tree | e20347e07374de053e0dac18a6d49364a8823660 /net/llc | |
| parent | 3169e36ae14802b01abe4bfa7ec593b0a1af5cc7 (diff) | |
net: make sk->sk_rcvtimeo lockless
Followup of commit 285975dd6742 ("net: annotate data-races around
sk->sk_{rcv|snd}timeo").
Remove lock_sock()/release_sock() from ksmbd_tcp_rcv_timeout()
and add READ_ONCE()/WRITE_ONCE() where it is needed.
Also SO_RCVTIMEO_OLD and SO_RCVTIMEO_NEW can call sock_set_timeout()
without holding the socket lock.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250620155536.335520-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/llc')
| -rw-r--r-- | net/llc/af_llc.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index cc77ec5769d8..5958a80fe14c 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -210,7 +210,7 @@ static int llc_ui_release(struct socket *sock) dprintk("%s: closing local(%02X) remote(%02X)\n", __func__, llc->laddr.lsap, llc->daddr.lsap); if (!llc_send_disc(sk)) - llc_ui_wait_for_disc(sk, sk->sk_rcvtimeo); + llc_ui_wait_for_disc(sk, READ_ONCE(sk->sk_rcvtimeo)); if (!sock_flag(sk, SOCK_ZAPPED)) { struct llc_sap *sap = llc->sap; @@ -455,7 +455,7 @@ static int llc_ui_shutdown(struct socket *sock, int how) goto out; rc = llc_send_disc(sk); if (!rc) - rc = llc_ui_wait_for_disc(sk, sk->sk_rcvtimeo); + rc = llc_ui_wait_for_disc(sk, READ_ONCE(sk->sk_rcvtimeo)); /* Wake up anyone sleeping in poll */ sk->sk_state_change(sk); out: @@ -712,7 +712,7 @@ static int llc_ui_accept(struct socket *sock, struct socket *newsock, goto out; /* wait for a connection to arrive. */ if (skb_queue_empty(&sk->sk_receive_queue)) { - rc = llc_wait_data(sk, sk->sk_rcvtimeo); + rc = llc_wait_data(sk, READ_ONCE(sk->sk_rcvtimeo)); if (rc) goto out; } |