From 08b81d873126b413cda511b1ea1cbb0e99938bbd Mon Sep 17 00:00:00 2001 From: Geliang Tang Date: Thu, 24 Sep 2020 08:30:01 +0800 Subject: [PATCH] mptcp: add sk_stop_timer_sync helper This patch added a new helper sk_stop_timer_sync, it deactivates a timer like sk_stop_timer, but waits for the handler to finish. Acked-by: Paolo Abeni Signed-off-by: Geliang Tang Reviewed-by: Mat Martineau Signed-off-by: David S. Miller --- include/net/sock.h | 2 ++ net/core/sock.c | 7 +++++++ 2 files changed, 9 insertions(+) diff --git a/include/net/sock.h b/include/net/sock.h index eaa5cac..a5c6ae7 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2195,6 +2195,8 @@ void sk_reset_timer(struct sock *sk, struct timer_list *timer, void sk_stop_timer(struct sock *sk, struct timer_list *timer); +void sk_stop_timer_sync(struct sock *sk, struct timer_list *timer); + int __sk_queue_drop_skb(struct sock *sk, struct sk_buff_head *sk_queue, struct sk_buff *skb, unsigned int flags, void (*destructor)(struct sock *sk, diff --git a/net/core/sock.c b/net/core/sock.c index ba9e7d9..d9a537e 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2947,6 +2947,13 @@ void sk_stop_timer(struct sock *sk, struct timer_list* timer) } EXPORT_SYMBOL(sk_stop_timer); +void sk_stop_timer_sync(struct sock *sk, struct timer_list *timer) +{ + if (del_timer_sync(timer)) + __sock_put(sk); +} +EXPORT_SYMBOL(sk_stop_timer_sync); + void sock_init_data(struct socket *sock, struct sock *sk) { sk_init_common(sk); -- 2.7.4