SAFE public projects git trees. - safe/jmp/linux-2.6/blob - include/linux/init_task.h

   1 #ifndef _LINUX__INIT_TASK_H
   2 #define _LINUX__INIT_TASK_H
   3
   4 #include <linux/file.h>
   5
   6 #define INIT_FDTABLE \
   7 {                                                       \
   8         .max_fds        = NR_OPEN_DEFAULT,              \
   9         .max_fdset      = __FD_SETSIZE,                 \
  10         .next_fd        = 0,                            \
  11         .fd             = &init_files.fd_array[0],      \
  12         .close_on_exec  = &init_files.close_on_exec_init, \
  13         .open_fds       = &init_files.open_fds_init,    \
  14 }
  15
  16 #define INIT_FILES \
  17 {                                                       \
  18         .count          = ATOMIC_INIT(1),               \
  19         .file_lock      = SPIN_LOCK_UNLOCKED,           \
  20         .fdtab          = INIT_FDTABLE,                 \
  21         .close_on_exec_init = { { 0, } },               \
  22         .open_fds_init  = { { 0, } },                   \
  23         .fd_array       = { NULL, }                     \
  24 }
  25
  26 #define INIT_KIOCTX(name, which_mm) \
  27 {                                                       \
  28         .users          = ATOMIC_INIT(1),               \
  29         .dead           = 0,                            \
  30         .mm             = &which_mm,                    \
  31         .user_id        = 0,                            \
  32         .next           = NULL,                         \
  33         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
  34         .ctx_lock       = SPIN_LOCK_UNLOCKED,           \
  35         .reqs_active    = 0U,                           \
  36         .max_reqs       = ~0U,                          \
  37 }
  38
  39 #define INIT_MM(name) \
  40 {                                                               \
  41         .mm_rb          = RB_ROOT,                              \
  42         .pgd            = swapper_pg_dir,                       \
  43         .mm_users       = ATOMIC_INIT(2),                       \
  44         .mm_count       = ATOMIC_INIT(1),                       \
  45         .mmap_sem       = __RWSEM_INITIALIZER(name.mmap_sem),   \
  46         .page_table_lock =  SPIN_LOCK_UNLOCKED,                 \
  47         .mmlist         = LIST_HEAD_INIT(name.mmlist),          \
  48         .cpu_vm_mask    = CPU_MASK_ALL,                         \
  49         .default_kioctx = INIT_KIOCTX(name.default_kioctx, name),       \
  50 }
  51
  52 #define INIT_SIGNALS(sig) {     \
  53         .count          = ATOMIC_INIT(1),               \
  54         .wait_chldexit  = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
  55         .shared_pending = {                             \
  56                 .list = LIST_HEAD_INIT(sig.shared_pending.list),        \
  57                 .signal =  {{0}}}, \
  58         .posix_timers    = LIST_HEAD_INIT(sig.posix_timers),            \
  59         .cpu_timers     = INIT_CPU_TIMERS(sig.cpu_timers),              \
  60         .rlim           = INIT_RLIMITS,                                 \
  61 }
  62
  63 #define INIT_SIGHAND(sighand) {                                         \
  64         .count          = ATOMIC_INIT(1),                               \
  65         .action         = { { { .sa_handler = NULL, } }, },             \
  66         .siglock        = SPIN_LOCK_UNLOCKED,                           \
  67 }
  68
  69 extern struct group_info init_groups;
  70
  71 /*
  72  *  INIT_TASK is used to set up the first task table, touch at
  73  * your own risk!. Base=0, limit=0x1fffff (=2MB)
  74  */
  75 #define INIT_TASK(tsk)  \
  76 {                                                                       \
  77         .state          = 0,                                            \
  78         .thread_info    = &init_thread_info,                            \
  79         .usage          = ATOMIC_INIT(2),                               \
  80         .flags          = 0,                                            \
  81         .lock_depth     = -1,                                           \
  82         .prio           = MAX_PRIO-20,                                  \
  83         .static_prio    = MAX_PRIO-20,                                  \
  84         .policy         = SCHED_NORMAL,                                 \
  85         .cpus_allowed   = CPU_MASK_ALL,                                 \
  86         .mm             = NULL,                                         \
  87         .active_mm      = &init_mm,                                     \
  88         .run_list       = LIST_HEAD_INIT(tsk.run_list),                 \
  89         .ioprio         = 0,                                            \
  90         .time_slice     = HZ,                                           \
  91         .tasks          = LIST_HEAD_INIT(tsk.tasks),                    \
  92         .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children),          \
  93         .ptrace_list    = LIST_HEAD_INIT(tsk.ptrace_list),              \
  94         .real_parent    = &tsk,                                         \
  95         .parent         = &tsk,                                         \
  96         .children       = LIST_HEAD_INIT(tsk.children),                 \
  97         .sibling        = LIST_HEAD_INIT(tsk.sibling),                  \
  98         .group_leader   = &tsk,                                         \
  99         .group_info     = &init_groups,                                 \
 100         .cap_effective  = CAP_INIT_EFF_SET,                             \
 101         .cap_inheritable = CAP_INIT_INH_SET,                            \
 102         .cap_permitted  = CAP_FULL_SET,                                 \
 103         .keep_capabilities = 0,                                         \
 104         .user           = INIT_USER,                                    \
 105         .comm           = "swapper",                                    \
 106         .thread         = INIT_THREAD,                                  \
 107         .fs             = &init_fs,                                     \
 108         .files          = &init_files,                                  \
 109         .signal         = &init_signals,                                \
 110         .sighand        = &init_sighand,                                \
 111         .pending        = {                                             \
 112                 .list = LIST_HEAD_INIT(tsk.pending.list),               \
 113                 .signal = {{0}}},                                       \
 114         .blocked        = {{0}},                                        \
 115         .alloc_lock     = SPIN_LOCK_UNLOCKED,                           \
 116         .proc_lock      = SPIN_LOCK_UNLOCKED,                           \
 117         .journal_info   = NULL,                                         \
 118         .cpu_timers     = INIT_CPU_TIMERS(tsk.cpu_timers),              \
 119         .fs_excl        = ATOMIC_INIT(0),                               \
 120 }
 121
 122
 123 #define INIT_CPU_TIMERS(cpu_timers)                                     \
 124 {                                                                       \
 125         LIST_HEAD_INIT(cpu_timers[0]),                                  \
 126         LIST_HEAD_INIT(cpu_timers[1]),                                  \
 127         LIST_HEAD_INIT(cpu_timers[2]),                                  \
 128 }
 129
 130
 131 #endif