blob: fadfb55ff2f6f91b069302e07f966388103189c3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
#ifndef _LINUX_SHM_H_
#define _LINUX_SHM_H_
#include <linux/ipc.h>
#include <linux/errno.h>
#ifdef __KERNEL__
#include <asm/page.h>
#else
#include <unistd.h>
#endif
#define SHMMAX 0x2000000
#define SHMMIN 1
#define SHMMNI 4096
#ifdef __KERNEL__
#define SHMALL (SHMMAX/PAGE_SIZE*(SHMMNI/16))
#else
#define SHMALL (SHMMAX/getpagesize()*(SHMMNI/16))
#endif
#define SHMSEG SHMMNI
#ifdef __KERNEL__
#include <asm/shmparam.h>
#endif
struct shmid_ds {
struct ipc_perm shm_perm;
int shm_segsz;
__kernel_time_t shm_atime;
__kernel_time_t shm_dtime;
__kernel_time_t shm_ctime;
__kernel_ipc_pid_t shm_cpid;
__kernel_ipc_pid_t shm_lpid;
unsigned short shm_nattch;
unsigned short shm_unused;
void *shm_unused2;
void *shm_unused3;
};
#include <asm/shmbuf.h>
#define SHM_R 0400
#define SHM_W 0200
#define SHM_RDONLY 010000
#define SHM_RND 020000
#define SHM_REMAP 040000
#define SHM_EXEC 0100000
#define SHM_LOCK 11
#define SHM_UNLOCK 12
#define SHM_STAT 13
#define SHM_INFO 14
struct shminfo {
int shmmax;
int shmmin;
int shmmni;
int shmseg;
int shmall;
};
struct shm_info {
int used_ids;
unsigned long shm_tot;
unsigned long shm_rss;
unsigned long shm_swp;
unsigned long swap_attempts;
unsigned long swap_successes;
};
#ifdef __KERNEL__
struct shmid_kernel
{
struct kern_ipc_perm shm_perm;
struct file * shm_file;
unsigned long shm_nattch;
unsigned long shm_segsz;
time_t shm_atim;
time_t shm_dtim;
time_t shm_ctim;
pid_t shm_cprid;
pid_t shm_lprid;
struct user_struct *mlock_user;
struct task_struct *shm_creator;
};
#define SHM_DEST 01000
#define SHM_LOCKED 02000
#define SHM_HUGETLB 04000
#define SHM_NORESERVE 010000
#ifdef CONFIG_SYSVIPC
long do_shmat(int shmid, char __user *shmaddr, int shmflg, unsigned long *addr);
extern int is_file_shm_hugepages(struct file *file);
extern void exit_shm(struct task_struct *task);
#else
static inline long do_shmat(int shmid, char __user *shmaddr,
int shmflg, unsigned long *addr)
{
return -ENOSYS;
}
static inline int is_file_shm_hugepages(struct file *file)
{
return 0;
}
static inline void exit_shm(struct task_struct *task)
{
}
#endif
#endif
#endif
|
