diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tcp.h | 7 | ||||
| -rw-r--r-- | include/net/tcp.h | 14 |
2 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index c44cf9ae8d16..bcebc4f07532 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -548,6 +548,13 @@ enum tsq_flags { TCPF_ACK_DEFERRED = BIT(TCP_ACK_DEFERRED), }; +/* Flags of interest for tcp_release_cb() */ +#define TCP_DEFERRED_ALL (TCPF_TSQ_DEFERRED | \ + TCPF_WRITE_TIMER_DEFERRED | \ + TCPF_DELACK_TIMER_DEFERRED | \ + TCPF_MTU_REDUCED_DEFERRED | \ + TCPF_ACK_DEFERRED) + #define tcp_sk(ptr) container_of_const(ptr, struct tcp_sock, inet_conn.icsk_inet.sk) /* Variant of tcp_sk() upgrading a const sock to a read/write tcp socket. diff --git a/include/net/tcp.h b/include/net/tcp.h index 9f0aee9e5d76..48dffcca0a71 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -375,7 +375,21 @@ int tcp_send_mss(struct sock *sk, int *size_goal, int flags); int tcp_wmem_schedule(struct sock *sk, int copy); void tcp_push(struct sock *sk, int flags, int mss_now, int nonagle, int size_goal); + void tcp_release_cb(struct sock *sk); + +static inline bool tcp_release_cb_cond(struct sock *sk) +{ +#ifdef CONFIG_INET + if (likely(sk->sk_prot->release_cb == tcp_release_cb)) { + if (unlikely(smp_load_acquire(&sk->sk_tsq_flags) & TCP_DEFERRED_ALL)) + tcp_release_cb(sk); + return true; + } +#endif + return false; +} + void tcp_wfree(struct sk_buff *skb); void tcp_write_timer_handler(struct sock *sk); void tcp_delack_timer_handler(struct sock *sk); |