fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / compat.h
blob53cb96b68a62bcb1f040e78381e9e9e562cbb0f8
1 #ifndef _ASM_X86_64_COMPAT_H
2 #define _ASM_X86_64_COMPAT_H
4 /*
5 * Architecture specific compatibility types
6 */
7 #include <linux/types.h>
8 #include <linux/sched.h>
10 #define COMPAT_USER_HZ 100
12 typedef u32 compat_size_t;
13 typedef s32 compat_ssize_t;
14 typedef s32 compat_time_t;
15 typedef s32 compat_clock_t;
16 typedef s32 compat_pid_t;
17 typedef u16 __compat_uid_t;
18 typedef u16 __compat_gid_t;
19 typedef u32 __compat_uid32_t;
20 typedef u32 __compat_gid32_t;
21 typedef u16 compat_mode_t;
22 typedef u32 compat_ino_t;
23 typedef u16 compat_dev_t;
24 typedef s32 compat_off_t;
25 typedef s64 compat_loff_t;
26 typedef u16 compat_nlink_t;
27 typedef u16 compat_ipc_pid_t;
28 typedef s32 compat_daddr_t;
29 typedef u32 compat_caddr_t;
30 typedef __kernel_fsid_t compat_fsid_t;
31 typedef s32 compat_timer_t;
32 typedef s32 compat_key_t;
34 typedef s32 compat_int_t;
35 typedef s32 compat_long_t;
36 typedef s64 __attribute__((aligned(4))) compat_s64;
37 typedef u32 compat_uint_t;
38 typedef u32 compat_ulong_t;
39 typedef u64 __attribute__((aligned(4))) compat_u64;
41 struct compat_timespec {
42 compat_time_t tv_sec;
43 s32 tv_nsec;
46 struct compat_timeval {
47 compat_time_t tv_sec;
48 s32 tv_usec;
51 struct compat_stat {
52 compat_dev_t st_dev;
53 u16 __pad1;
54 compat_ino_t st_ino;
55 compat_mode_t st_mode;
56 compat_nlink_t st_nlink;
57 __compat_uid_t st_uid;
58 __compat_gid_t st_gid;
59 compat_dev_t st_rdev;
60 u16 __pad2;
61 u32 st_size;
62 u32 st_blksize;
63 u32 st_blocks;
64 u32 st_atime;
65 u32 st_atime_nsec;
66 u32 st_mtime;
67 u32 st_mtime_nsec;
68 u32 st_ctime;
69 u32 st_ctime_nsec;
70 u32 __unused4;
71 u32 __unused5;
74 struct compat_flock {
75 short l_type;
76 short l_whence;
77 compat_off_t l_start;
78 compat_off_t l_len;
79 compat_pid_t l_pid;
82 #define F_GETLK64 12 /* using 'struct flock64' */
83 #define F_SETLK64 13
84 #define F_SETLKW64 14
87 * IA32 uses 4 byte alignment for 64 bit quantities,
88 * so we need to pack this structure.
90 struct compat_flock64 {
91 short l_type;
92 short l_whence;
93 compat_loff_t l_start;
94 compat_loff_t l_len;
95 compat_pid_t l_pid;
96 } __attribute__((packed));
98 struct compat_statfs {
99 int f_type;
100 int f_bsize;
101 int f_blocks;
102 int f_bfree;
103 int f_bavail;
104 int f_files;
105 int f_ffree;
106 compat_fsid_t f_fsid;
107 int f_namelen; /* SunOS ignores this field. */
108 int f_frsize;
109 int f_spare[5];
112 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
113 #define COMPAT_RLIM_INFINITY 0xffffffff
115 typedef u32 compat_old_sigset_t; /* at least 32 bits */
117 #define _COMPAT_NSIG 64
118 #define _COMPAT_NSIG_BPW 32
120 typedef u32 compat_sigset_word;
122 #define COMPAT_OFF_T_MAX 0x7fffffff
123 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
125 struct compat_ipc64_perm {
126 compat_key_t key;
127 __compat_uid32_t uid;
128 __compat_gid32_t gid;
129 __compat_uid32_t cuid;
130 __compat_gid32_t cgid;
131 unsigned short mode;
132 unsigned short __pad1;
133 unsigned short seq;
134 unsigned short __pad2;
135 compat_ulong_t unused1;
136 compat_ulong_t unused2;
139 struct compat_semid64_ds {
140 struct compat_ipc64_perm sem_perm;
141 compat_time_t sem_otime;
142 compat_ulong_t __unused1;
143 compat_time_t sem_ctime;
144 compat_ulong_t __unused2;
145 compat_ulong_t sem_nsems;
146 compat_ulong_t __unused3;
147 compat_ulong_t __unused4;
150 struct compat_msqid64_ds {
151 struct compat_ipc64_perm msg_perm;
152 compat_time_t msg_stime;
153 compat_ulong_t __unused1;
154 compat_time_t msg_rtime;
155 compat_ulong_t __unused2;
156 compat_time_t msg_ctime;
157 compat_ulong_t __unused3;
158 compat_ulong_t msg_cbytes;
159 compat_ulong_t msg_qnum;
160 compat_ulong_t msg_qbytes;
161 compat_pid_t msg_lspid;
162 compat_pid_t msg_lrpid;
163 compat_ulong_t __unused4;
164 compat_ulong_t __unused5;
167 struct compat_shmid64_ds {
168 struct compat_ipc64_perm shm_perm;
169 compat_size_t shm_segsz;
170 compat_time_t shm_atime;
171 compat_ulong_t __unused1;
172 compat_time_t shm_dtime;
173 compat_ulong_t __unused2;
174 compat_time_t shm_ctime;
175 compat_ulong_t __unused3;
176 compat_pid_t shm_cpid;
177 compat_pid_t shm_lpid;
178 compat_ulong_t shm_nattch;
179 compat_ulong_t __unused4;
180 compat_ulong_t __unused5;
184 * A pointer passed in from user mode. This should not
185 * be used for syscall parameters, just declare them
186 * as pointers because the syscall entry code will have
187 * appropriately comverted them already.
189 typedef u32 compat_uptr_t;
191 static inline void __user *compat_ptr(compat_uptr_t uptr)
193 return (void __user *)(unsigned long)uptr;
196 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
198 return (u32)(unsigned long)uptr;
201 static __inline__ void __user *compat_alloc_user_space(long len)
203 struct pt_regs *regs = task_pt_regs(current);
204 return (void __user *)regs->rsp - len;
207 static inline int is_compat_task(void)
209 return current_thread_info()->status & TS_COMPAT;
212 #endif /* _ASM_X86_64_COMPAT_H */