libceph: support the RADOS copy-from operation
[sfrench/cifs-2.6.git] / include / linux / signalfd.h
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  */
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
29 static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
30
31 static inline void signalfd_cleanup(struct sighand_struct *sighand) { }
32
33 #endif /* CONFIG_SIGNALFD */
34
35 #endif /* _LINUX_SIGNALFD_H */