1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _LINUX_SEM_H |
3 | #define _LINUX_SEM_H |
4 | |
5 | #include <uapi/linux/sem.h> |
6 | |
7 | struct task_struct; |
8 | struct sem_undo_list; |
9 | |
10 | #ifdef CONFIG_SYSVIPC |
11 | |
12 | struct sysv_sem { |
13 | struct sem_undo_list *undo_list; |
14 | }; |
15 | |
16 | extern int copy_semundo(unsigned long clone_flags, struct task_struct *tsk); |
17 | extern void exit_sem(struct task_struct *tsk); |
18 | |
19 | #else |
20 | |
21 | struct sysv_sem { |
22 | /* empty */ |
23 | }; |
24 | |
25 | static inline int copy_semundo(unsigned long clone_flags, struct task_struct *tsk) |
26 | { |
27 | return 0; |
28 | } |
29 | |
30 | static inline void exit_sem(struct task_struct *tsk) |
31 | { |
32 | return; |
33 | } |
34 | #endif |
35 | |
36 | #endif /* _LINUX_SEM_H */ |
37 | |