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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>
4865ecf1 7#include <linux/utsname.h>
fbb9ce95 8#include <linux/lockdep.h>
1da177e4 9
badf1662
DS
10#define INIT_FDTABLE \
11{ \
1da177e4 12 .max_fds = NR_OPEN_DEFAULT, \
0c9e63fd 13 .max_fdset = EMBEDDED_FD_SET_SIZE, \
1da177e4 14 .fd = &init_files.fd_array[0], \
0c9e63fd
ED
15 .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \
16 .open_fds = (fd_set *)&init_files.open_fds_init, \
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DS
17 .rcu = RCU_HEAD_INIT, \
18 .free_files = NULL, \
19 .next = NULL, \
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DS
20}
21
22#define INIT_FILES \
23{ \
24 .count = ATOMIC_INIT(1), \
ab2af1f5 25 .fdt = &init_files.fdtab, \
badf1662 26 .fdtab = INIT_FDTABLE, \
e4d91918 27 .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \
0c9e63fd 28 .next_fd = 0, \
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29 .close_on_exec_init = { { 0, } }, \
30 .open_fds_init = { { 0, } }, \
31 .fd_array = { NULL, } \
32}
33
34#define INIT_KIOCTX(name, which_mm) \
35{ \
36 .users = ATOMIC_INIT(1), \
37 .dead = 0, \
38 .mm = &which_mm, \
39 .user_id = 0, \
40 .next = NULL, \
41 .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
e4d91918 42 .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
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43 .reqs_active = 0U, \
44 .max_reqs = ~0U, \
45}
46
47#define INIT_MM(name) \
48{ \
49 .mm_rb = RB_ROOT, \
50 .pgd = swapper_pg_dir, \
51 .mm_users = ATOMIC_INIT(2), \
52 .mm_count = ATOMIC_INIT(1), \
53 .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \
e4d91918 54 .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \
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55 .mmlist = LIST_HEAD_INIT(name.mmlist), \
56 .cpu_vm_mask = CPU_MASK_ALL, \
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57}
58
59#define INIT_SIGNALS(sig) { \
60 .count = ATOMIC_INIT(1), \
61 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
62 .shared_pending = { \
63 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
64 .signal = {{0}}}, \
65 .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \
66 .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \
67 .rlim = INIT_RLIMITS, \
c7c64641
ON
68 .pgrp = 1, \
69 .session = 1, \
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70}
71
ab516013
SH
72extern struct nsproxy init_nsproxy;
73#define INIT_NSPROXY(nsproxy) { \
74 .count = ATOMIC_INIT(1), \
75 .nslock = SPIN_LOCK_UNLOCKED, \
4865ecf1 76 .uts_ns = &init_uts_ns, \
25b21cb2 77 .ipc_ns = &init_ipc_ns, \
1651e14e 78 .namespace = NULL, \
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SH
79}
80
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81#define INIT_SIGHAND(sighand) { \
82 .count = ATOMIC_INIT(1), \
83 .action = { { { .sa_handler = NULL, } }, }, \
e4d91918 84 .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
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85}
86
87extern struct group_info init_groups;
88
89/*
90 * INIT_TASK is used to set up the first task table, touch at
91 * your own risk!. Base=0, limit=0x1fffff (=2MB)
92 */
93#define INIT_TASK(tsk) \
94{ \
95 .state = 0, \
96 .thread_info = &init_thread_info, \
97 .usage = ATOMIC_INIT(2), \
98 .flags = 0, \
99 .lock_depth = -1, \
100 .prio = MAX_PRIO-20, \
101 .static_prio = MAX_PRIO-20, \
b29739f9 102 .normal_prio = MAX_PRIO-20, \
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103 .policy = SCHED_NORMAL, \
104 .cpus_allowed = CPU_MASK_ALL, \
105 .mm = NULL, \
106 .active_mm = &init_mm, \
107 .run_list = LIST_HEAD_INIT(tsk.run_list), \
22e2c507 108 .ioprio = 0, \
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109 .time_slice = HZ, \
110 .tasks = LIST_HEAD_INIT(tsk.tasks), \
111 .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \
112 .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \
113 .real_parent = &tsk, \
114 .parent = &tsk, \
115 .children = LIST_HEAD_INIT(tsk.children), \
116 .sibling = LIST_HEAD_INIT(tsk.sibling), \
117 .group_leader = &tsk, \
118 .group_info = &init_groups, \
119 .cap_effective = CAP_INIT_EFF_SET, \
120 .cap_inheritable = CAP_INIT_INH_SET, \
121 .cap_permitted = CAP_FULL_SET, \
122 .keep_capabilities = 0, \
123 .user = INIT_USER, \
124 .comm = "swapper", \
125 .thread = INIT_THREAD, \
126 .fs = &init_fs, \
127 .files = &init_files, \
128 .signal = &init_signals, \
129 .sighand = &init_sighand, \
ab516013 130 .nsproxy = &init_nsproxy, \
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131 .pending = { \
132 .list = LIST_HEAD_INIT(tsk.pending.list), \
133 .signal = {{0}}}, \
134 .blocked = {{0}}, \
e4d91918 135 .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \
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136 .journal_info = NULL, \
137 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
22e2c507 138 .fs_excl = ATOMIC_INIT(0), \
b29739f9 139 .pi_lock = SPIN_LOCK_UNLOCKED, \
de30a2b3 140 INIT_TRACE_IRQFLAGS \
fbb9ce95 141 INIT_LOCKDEP \
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142}
143
144
145#define INIT_CPU_TIMERS(cpu_timers) \
146{ \
147 LIST_HEAD_INIT(cpu_timers[0]), \
148 LIST_HEAD_INIT(cpu_timers[1]), \
149 LIST_HEAD_INIT(cpu_timers[2]), \
150}
151
152
153#endif