1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  *  include/linux/signalfd.h
4  *
5  *  Copyright (C) 2007  Davide Libenzi <davidel@xmailserver.org>
6  *
7  */
8 #ifndef _LINUX_SIGNALFD_H
9 #define _LINUX_SIGNALFD_H
10 
11 #include <uapi/linux/signalfd.h>
12 #include <linux/sched/signal.h>
13 
14 #ifdef CONFIG_SIGNALFD
15 
16 /*
17  * Deliver the signal to listening signalfd.
18  */
signalfd_notify(struct task_struct * tsk,int sig)19 static inline void signalfd_notify(struct task_struct *tsk, int sig)
20 {
21 	if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh)))
22 		wake_up(&tsk->sighand->signalfd_wqh);
23 }
24 
25 extern void signalfd_cleanup(struct sighand_struct *sighand);
26 
27 #else /* CONFIG_SIGNALFD */
28 
signalfd_notify(struct task_struct * tsk,int sig)29 static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
30 
signalfd_cleanup(struct sighand_struct * sighand)31 static inline void signalfd_cleanup(struct sighand_struct *sighand) { }
32 
33 #endif /* CONFIG_SIGNALFD */
34 
35 #endif /* _LINUX_SIGNALFD_H */
36