4 #include <linux/atomic.h>
5 #include <linux/rcupdate.h>
6 #include <linux/cache.h>
7 #include <uapi/linux/sem.h>
11 /* One sem_array data structure for each set of semaphores in the system. */
13 struct kern_ipc_perm ____cacheline_aligned_in_smp
14 sem_perm
; /* permissions .. see ipc.h */
15 time_t sem_otime
; /* last semop time */
16 time_t sem_ctime
; /* last change time */
17 struct sem
*sem_base
; /* ptr to first semaphore in array */
18 struct list_head sem_pending
; /* pending operations to be processed */
19 struct list_head list_id
; /* undo requests on this array */
20 int sem_nsems
; /* no. of semaphores in array */
21 int complex_count
; /* pending complex operations */
27 struct sem_undo_list
*undo_list
;
30 extern int copy_semundo(unsigned long clone_flags
, struct task_struct
*tsk
);
31 extern void exit_sem(struct task_struct
*tsk
);
39 static inline int copy_semundo(unsigned long clone_flags
, struct task_struct
*tsk
)
44 static inline void exit_sem(struct task_struct
*tsk
)
50 #endif /* _LINUX_SEM_H */