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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 */ |