include/linux/sem.h

   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 #include <linux/sem_types.h>
   7
   8 struct task_struct;
   9
  10 #ifdef CONFIG_SYSVIPC
  11
  12 extern int copy_semundo(unsigned long clone_flags, struct task_struct *tsk);
  13 extern void exit_sem(struct task_struct *tsk);
  14
  15 #else
  16
  17 static inline int copy_semundo(unsigned long clone_flags, struct task_struct *tsk)
  18 {
  19         return 0;
  20 }
  21
  22 static inline void exit_sem(struct task_struct *tsk)
  23 {
  24         return;
  25 }
  26 #endif
  27
  28 #endif /* _LINUX_SEM_H */