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 */ 36