epoll: introduce POLLFREE to flush ->signalfd_wqh before kfree()

[mirror_ubuntu-bionic-kernel.git] / include / linux / signalfd.h

diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
index 3ff4961da9b514992cf0edabf07c1b08d2121027..247399b2979a9a331c976e9f413e4dd122ef7711 100644 (file)
--- a/include/linux/signalfd.h
+++ b/include/linux/signalfd.h
@@ -61,13 +61,16 @@ static inline void signalfd_notify(struct task_struct *tsk, int sig)
                wake_up(&tsk->sighand->signalfd_wqh);
 }
 
+extern void signalfd_cleanup(struct sighand_struct *sighand);
+
 #else /* CONFIG_SIGNALFD */
 
 static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
 
+static inline void signalfd_cleanup(struct sighand_struct *sighand) { }
+
 #endif /* CONFIG_SIGNALFD */
 
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_SIGNALFD_H */
-