include/linux/types.h

   1 #ifndef _LINUX_TYPES_H
   2 #define _LINUX_TYPES_H
   3
   4 #define __EXPORTED_HEADERS__
   5 #include <uapi/linux/types.h>
   6
   7 #ifndef __ASSEMBLY__
   8
   9 #define DECLARE_BITMAP(name,bits) \
  10         unsigned long name[BITS_TO_LONGS(bits)]
  11
  12 typedef __u32 __kernel_dev_t;
  13
  14 typedef __kernel_fd_set         fd_set;
  15 typedef __kernel_dev_t          dev_t;
  16 typedef __kernel_ino_t          ino_t;
  17 typedef __kernel_mode_t         mode_t;
  18 typedef unsigned short          umode_t;
  19 typedef __u32                   nlink_t;
  20 typedef __kernel_off_t          off_t;
  21 typedef __kernel_pid_t          pid_t;
  22 typedef __kernel_daddr_t        daddr_t;
  23 typedef __kernel_key_t          key_t;
  24 typedef __kernel_suseconds_t    suseconds_t;
  25 typedef __kernel_timer_t        timer_t;
  26 typedef __kernel_clockid_t      clockid_t;
  27 typedef __kernel_mqd_t          mqd_t;
  28
  29 typedef _Bool                   bool;
  30
  31 typedef __kernel_uid32_t        uid_t;
  32 typedef __kernel_gid32_t        gid_t;
  33 typedef __kernel_uid16_t        uid16_t;
  34 typedef __kernel_gid16_t        gid16_t;
  35
  36 typedef unsigned long           uintptr_t;
  37
  38 #ifdef CONFIG_UID16
  39 /* This is defined by include/asm-{arch}/posix_types.h */
  40 typedef __kernel_old_uid_t      old_uid_t;
  41 typedef __kernel_old_gid_t      old_gid_t;
  42 #endif /* CONFIG_UID16 */
  43
  44 #if defined(__GNUC__)
  45 typedef __kernel_loff_t         loff_t;
  46 #endif
  47
  48 /*
  49  * The following typedefs are also protected by individual ifdefs for
  50  * historical reasons:
  51  */
  52 #ifndef _SIZE_T
  53 #define _SIZE_T
  54 typedef __kernel_size_t         size_t;
  55 #endif
  56
  57 #ifndef _SSIZE_T
  58 #define _SSIZE_T
  59 typedef __kernel_ssize_t        ssize_t;
  60 #endif
  61
  62 #ifndef _PTRDIFF_T
  63 #define _PTRDIFF_T
  64 typedef __kernel_ptrdiff_t      ptrdiff_t;
  65 #endif
  66
  67 #ifndef _TIME_T
  68 #define _TIME_T
  69 typedef __kernel_time_t         time_t;
  70 #endif
  71
  72 #ifndef _CLOCK_T
  73 #define _CLOCK_T
  74 typedef __kernel_clock_t        clock_t;
  75 #endif
  76
  77 #ifndef _CADDR_T
  78 #define _CADDR_T
  79 typedef __kernel_caddr_t        caddr_t;
  80 #endif
  81
  82 /* bsd */
  83 typedef unsigned char           u_char;
  84 typedef unsigned short          u_short;
  85 typedef unsigned int            u_int;
  86 typedef unsigned long           u_long;
  87
  88 /* sysv */
  89 typedef unsigned char           unchar;
  90 typedef unsigned short          ushort;
  91 typedef unsigned int            uint;
  92 typedef unsigned long           ulong;
  93
  94 #ifndef __BIT_TYPES_DEFINED__
  95 #define __BIT_TYPES_DEFINED__
  96
  97 typedef         __u8            u_int8_t;
  98 typedef         __s8            int8_t;
  99 typedef         __u16           u_int16_t;
 100 typedef         __s16           int16_t;
 101 typedef         __u32           u_int32_t;
 102 typedef         __s32           int32_t;
 103
 104 #endif /* !(__BIT_TYPES_DEFINED__) */
 105
 106 typedef         __u8            uint8_t;
 107 typedef         __u16           uint16_t;
 108 typedef         __u32           uint32_t;
 109
 110 #if defined(__GNUC__)
 111 typedef         __u64           uint64_t;
 112 typedef         __u64           u_int64_t;
 113 typedef         __s64           int64_t;
 114 #endif
 115
 116 /* this is a special 64bit data type that is 8-byte aligned */
 117 #define aligned_u64 __u64 __attribute__((aligned(8)))
 118 #define aligned_be64 __be64 __attribute__((aligned(8)))
 119 #define aligned_le64 __le64 __attribute__((aligned(8)))
 120
 121 /**
 122  * The type used for indexing onto a disc or disc partition.
 123  *
 124  * Linux always considers sectors to be 512 bytes long independently
 125  * of the devices real block size.
 126  *
 127  * blkcnt_t is the type of the inode's block count.
 128  */
 129 #ifdef CONFIG_LBDAF
 130 typedef u64 sector_t;
 131 typedef u64 blkcnt_t;
 132 #else
 133 typedef unsigned long sector_t;
 134 typedef unsigned long blkcnt_t;
 135 #endif
 136
 137 /*
 138  * The type of an index into the pagecache.  Use a #define so asm/types.h
 139  * can override it.
 140  */
 141 #ifndef pgoff_t
 142 #define pgoff_t unsigned long
 143 #endif
 144
 145 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 146 typedef u64 dma_addr_t;
 147 #else
 148 typedef u32 dma_addr_t;
 149 #endif /* dma_addr_t */
 150
 151 #ifdef __CHECKER__
 152 #else
 153 #endif
 154 #ifdef __CHECK_ENDIAN__
 155 #else
 156 #endif
 157 typedef unsigned __bitwise__ gfp_t;
 158 typedef unsigned __bitwise__ fmode_t;
 159 typedef unsigned __bitwise__ oom_flags_t;
 160
 161 #ifdef CONFIG_PHYS_ADDR_T_64BIT
 162 typedef u64 phys_addr_t;
 163 #else
 164 typedef u32 phys_addr_t;
 165 #endif
 166
 167 typedef phys_addr_t resource_size_t;
 168
 169 /*
 170  * This type is the placeholder for a hardware interrupt number. It has to be
 171  * big enough to enclose whatever representation is used by a given platform.
 172  */
 173 typedef unsigned long irq_hw_number_t;
 174
 175 typedef struct {
 176         int counter;
 177 } atomic_t;
 178
 179 #ifdef CONFIG_64BIT
 180 typedef struct {
 181         long counter;
 182 } atomic64_t;
 183 #endif
 184
 185 struct list_head {
 186         struct list_head *next, *prev;
 187 };
 188
 189 struct hlist_head {
 190         struct hlist_node *first;
 191 };
 192
 193 struct hlist_node {
 194         struct hlist_node *next, **pprev;
 195 };
 196
 197 struct ustat {
 198         __kernel_daddr_t        f_tfree;
 199         __kernel_ino_t          f_tinode;
 200         char                    f_fname[6];
 201         char                    f_fpack[6];
 202 };
 203
 204 /**
 205  * struct callback_head - callback structure for use with RCU and task_work
 206  * @next: next update requests in a list
 207  * @func: actual update function to call after the grace period.
 208  */
 209 struct callback_head {
 210         struct callback_head *next;
 211         void (*func)(struct callback_head *head);
 212 };
 213 #define rcu_head callback_head
 214
 215 #endif /*  __ASSEMBLY__ */
 216 #endif /* _LINUX_TYPES_H */