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Subject[MPTCP][PATCH net-next 15/16] mptcp: add sk_stop_timer_sync helper
Date
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 <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
---
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 eaa5cac5e836..a5c6ae78df77 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 ba9e7d91e2ef..d9a537e6876a 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);
--
2.17.1
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