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1da177e4 LT |
1 | #ifndef _LINUX__INIT_TASK_H |
2 | #define _LINUX__INIT_TASK_H | |
3 | ||
4 | #include <linux/file.h> | |
ab2af1f5 | 5 | #include <linux/rcupdate.h> |
de30a2b3 | 6 | #include <linux/irqflags.h> |
fbb9ce95 | 7 | #include <linux/lockdep.h> |
1da177e4 | 8 | |
badf1662 DS |
9 | #define INIT_FDTABLE \ |
10 | { \ | |
1da177e4 | 11 | .max_fds = NR_OPEN_DEFAULT, \ |
0c9e63fd | 12 | .max_fdset = EMBEDDED_FD_SET_SIZE, \ |
1da177e4 | 13 | .fd = &init_files.fd_array[0], \ |
0c9e63fd ED |
14 | .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \ |
15 | .open_fds = (fd_set *)&init_files.open_fds_init, \ | |
ab2af1f5 DS |
16 | .rcu = RCU_HEAD_INIT, \ |
17 | .free_files = NULL, \ | |
18 | .next = NULL, \ | |
badf1662 DS |
19 | } |
20 | ||
21 | #define INIT_FILES \ | |
22 | { \ | |
23 | .count = ATOMIC_INIT(1), \ | |
ab2af1f5 | 24 | .fdt = &init_files.fdtab, \ |
badf1662 | 25 | .fdtab = INIT_FDTABLE, \ |
e4d91918 | 26 | .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \ |
0c9e63fd | 27 | .next_fd = 0, \ |
1da177e4 LT |
28 | .close_on_exec_init = { { 0, } }, \ |
29 | .open_fds_init = { { 0, } }, \ | |
30 | .fd_array = { NULL, } \ | |
31 | } | |
32 | ||
33 | #define INIT_KIOCTX(name, which_mm) \ | |
34 | { \ | |
35 | .users = ATOMIC_INIT(1), \ | |
36 | .dead = 0, \ | |
37 | .mm = &which_mm, \ | |
38 | .user_id = 0, \ | |
39 | .next = NULL, \ | |
40 | .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \ | |
e4d91918 | 41 | .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \ |
1da177e4 LT |
42 | .reqs_active = 0U, \ |
43 | .max_reqs = ~0U, \ | |
44 | } | |
45 | ||
46 | #define INIT_MM(name) \ | |
47 | { \ | |
48 | .mm_rb = RB_ROOT, \ | |
49 | .pgd = swapper_pg_dir, \ | |
50 | .mm_users = ATOMIC_INIT(2), \ | |
51 | .mm_count = ATOMIC_INIT(1), \ | |
52 | .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \ | |
e4d91918 | 53 | .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \ |
1da177e4 LT |
54 | .mmlist = LIST_HEAD_INIT(name.mmlist), \ |
55 | .cpu_vm_mask = CPU_MASK_ALL, \ | |
1da177e4 LT |
56 | } |
57 | ||
58 | #define INIT_SIGNALS(sig) { \ | |
59 | .count = ATOMIC_INIT(1), \ | |
60 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ | |
61 | .shared_pending = { \ | |
62 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ | |
63 | .signal = {{0}}}, \ | |
64 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ | |
65 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ | |
66 | .rlim = INIT_RLIMITS, \ | |
c7c64641 ON |
67 | .pgrp = 1, \ |
68 | .session = 1, \ | |
1da177e4 LT |
69 | } |
70 | ||
71 | #define INIT_SIGHAND(sighand) { \ | |
72 | .count = ATOMIC_INIT(1), \ | |
73 | .action = { { { .sa_handler = NULL, } }, }, \ | |
e4d91918 | 74 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
1da177e4 LT |
75 | } |
76 | ||
77 | extern struct group_info init_groups; | |
78 | ||
79 | /* | |
80 | * INIT_TASK is used to set up the first task table, touch at | |
81 | * your own risk!. Base=0, limit=0x1fffff (=2MB) | |
82 | */ | |
83 | #define INIT_TASK(tsk) \ | |
84 | { \ | |
85 | .state = 0, \ | |
86 | .thread_info = &init_thread_info, \ | |
87 | .usage = ATOMIC_INIT(2), \ | |
88 | .flags = 0, \ | |
89 | .lock_depth = -1, \ | |
90 | .prio = MAX_PRIO-20, \ | |
91 | .static_prio = MAX_PRIO-20, \ | |
b29739f9 | 92 | .normal_prio = MAX_PRIO-20, \ |
1da177e4 LT |
93 | .policy = SCHED_NORMAL, \ |
94 | .cpus_allowed = CPU_MASK_ALL, \ | |
95 | .mm = NULL, \ | |
96 | .active_mm = &init_mm, \ | |
97 | .run_list = LIST_HEAD_INIT(tsk.run_list), \ | |
22e2c507 | 98 | .ioprio = 0, \ |
1da177e4 LT |
99 | .time_slice = HZ, \ |
100 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ | |
101 | .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \ | |
102 | .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \ | |
103 | .real_parent = &tsk, \ | |
104 | .parent = &tsk, \ | |
105 | .children = LIST_HEAD_INIT(tsk.children), \ | |
106 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ | |
107 | .group_leader = &tsk, \ | |
108 | .group_info = &init_groups, \ | |
109 | .cap_effective = CAP_INIT_EFF_SET, \ | |
110 | .cap_inheritable = CAP_INIT_INH_SET, \ | |
111 | .cap_permitted = CAP_FULL_SET, \ | |
112 | .keep_capabilities = 0, \ | |
113 | .user = INIT_USER, \ | |
114 | .comm = "swapper", \ | |
115 | .thread = INIT_THREAD, \ | |
116 | .fs = &init_fs, \ | |
117 | .files = &init_files, \ | |
118 | .signal = &init_signals, \ | |
119 | .sighand = &init_sighand, \ | |
120 | .pending = { \ | |
121 | .list = LIST_HEAD_INIT(tsk.pending.list), \ | |
122 | .signal = {{0}}}, \ | |
123 | .blocked = {{0}}, \ | |
e4d91918 | 124 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
1da177e4 LT |
125 | .journal_info = NULL, \ |
126 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ | |
22e2c507 | 127 | .fs_excl = ATOMIC_INIT(0), \ |
b29739f9 | 128 | .pi_lock = SPIN_LOCK_UNLOCKED, \ |
de30a2b3 | 129 | INIT_TRACE_IRQFLAGS \ |
fbb9ce95 | 130 | INIT_LOCKDEP \ |
1da177e4 LT |
131 | } |
132 | ||
133 | ||
134 | #define INIT_CPU_TIMERS(cpu_timers) \ | |
135 | { \ | |
136 | LIST_HEAD_INIT(cpu_timers[0]), \ | |
137 | LIST_HEAD_INIT(cpu_timers[1]), \ | |
138 | LIST_HEAD_INIT(cpu_timers[2]), \ | |
139 | } | |
140 | ||
141 | ||
142 | #endif |