1 #ifndef _X86_64_SEMBUF_H
2 #define _X86_64_SEMBUF_H
3 
4 /*
5  * The semid64_ds structure for x86_64 architecture.
6  * Note extra padding because this structure is passed back and forth
7  * between kernel and user space.
8  *
9  * Pad space is left for:
10  * - 64-bit time_t to solve y2038 problem
11  * - 2 miscellaneous 32-bit values
12  */
13 
14 struct semid64_ds {
15 	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
16 	__kernel_time_t	sem_otime;		/* last semop time */
17 	unsigned long	__unused1;
18 	__kernel_time_t	sem_ctime;		/* last change time */
19 	unsigned long	__unused2;
20 	unsigned long	sem_nsems;		/* no. of semaphores in array */
21 	unsigned long	__unused3;
22 	unsigned long	__unused4;
23 };
24 
25 #endif /* _X86_64_SEMBUF_H */
26