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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _LINUX_SEM_H
- #define _LINUX_SEM_H
- #include <uapi/linux/sem.h>
- struct task_struct;
- struct sem_undo_list;
- #ifdef CONFIG_SYSVIPC
- struct sysv_sem {
- struct sem_undo_list *undo_list;
- };
- extern int copy_semundo(unsigned long clone_flags, struct task_struct *tsk);
- extern void exit_sem(struct task_struct *tsk);
- #else
- struct sysv_sem {
- /* empty */
- };
- static inline int copy_semundo(unsigned long clone_flags, struct task_struct *tsk)
- {
- return 0;
- }
- static inline void exit_sem(struct task_struct *tsk)
- {
- return;
- }
- #endif
- #endif /* _LINUX_SEM_H */
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