1#ifndef _ASM_X86_SHMBUF_H
2#define _ASM_X86_SHMBUF_H
3
4/*
5 * The shmid64_ds structure for x86 architecture.
6 * Note extra padding because this structure is passed back and forth
7 * between kernel and user space.
8 *
9 * Pad space on 32 bit is left for:
10 * - 64-bit time_t to solve y2038 problem
11 * - 2 miscellaneous 32-bit values
12 *
13 * Pad space on 64 bit is left for:
14 * - 2 miscellaneous 64-bit values
15 */
16
17struct shmid64_ds {
18	struct ipc64_perm	shm_perm;	/* operation perms */
19	size_t			shm_segsz;	/* size of segment (bytes) */
20	__kernel_time_t		shm_atime;	/* last attach time */
21#ifdef __i386__
22	unsigned long		__unused1;
23#endif
24	__kernel_time_t		shm_dtime;	/* last detach time */
25#ifdef __i386__
26	unsigned long		__unused2;
27#endif
28	__kernel_time_t		shm_ctime;	/* last change time */
29#ifdef __i386__
30	unsigned long		__unused3;
31#endif
32	__kernel_pid_t		shm_cpid;	/* pid of creator */
33	__kernel_pid_t		shm_lpid;	/* pid of last operator */
34	unsigned long		shm_nattch;	/* no. of current attaches */
35	unsigned long		__unused4;
36	unsigned long		__unused5;
37};
38
39struct shminfo64 {
40	unsigned long	shmmax;
41	unsigned long	shmmin;
42	unsigned long	shmmni;
43	unsigned long	shmseg;
44	unsigned long	shmall;
45	unsigned long	__unused1;
46	unsigned long	__unused2;
47	unsigned long	__unused3;
48	unsigned long	__unused4;
49};
50
51#endif /* _ASM_X86_SHMBUF_H */
52