diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 684f2125fc6b6ed45fd47cf6fff0c2d3ec971cab..70343ac448b182eec10b648372dc9109ffe78ce1 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -379,11 +379,13 @@ static int tipc_sk_sock_err(struct socket *sock, long *timeout) #define tipc_wait_for_cond(sock_, timeo_, condition_) \ ({ \ + DEFINE_WAIT_FUNC(wait_, woken_wake_function); \ struct sock *sk_; \ int rc_; \ \ while ((rc_ = !(condition_))) { \ - DEFINE_WAIT_FUNC(wait_, woken_wake_function); \ + /* coupled with smp_wmb() in tipc_sk_proto_rcv() */ \ + smp_rmb(); \ sk_ = (sock_)->sk; \ rc_ = tipc_sk_sock_err((sock_), timeo_); \ if (rc_) \ @@ -1983,6 +1985,8 @@ static void tipc_sk_proto_rcv(struct sock *sk, return; case SOCK_WAKEUP: tipc_dest_del(&tsk->cong_links, msg_orignode(hdr), 0); + /* coupled with smp_rmb() in tipc_wait_for_cond() */ + smp_wmb(); tsk->cong_link_cnt--; wakeup = true; break;