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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _LINUX__INIT_TASK_H
2#define _LINUX__INIT_TASK_H
3
4#include <linux/file.h>
Dipankar Sarmaab2af1f2005-09-09 13:04:13 -07005#include <linux/rcupdate.h>
Ingo Molnarde30a2b2006-07-03 00:24:42 -07006#include <linux/irqflags.h>
Serge E. Hallyn4865ecf2006-10-02 02:18:14 -07007#include <linux/utsname.h>
Ingo Molnarfbb9ce952006-07-03 00:24:50 -07008#include <linux/lockdep.h>
Kirill Korotaev73ea4132006-10-02 02:18:20 -07009#include <linux/ipc.h>
Cedric Le Goater9a575a92006-12-08 02:37:59 -080010#include <linux/pid_namespace.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070011
Dipankar Sarmabadf1662005-09-09 13:04:10 -070012#define INIT_FDTABLE \
13{ \
Linus Torvalds1da177e2005-04-16 15:20:36 -070014 .max_fds = NR_OPEN_DEFAULT, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070015 .fd = &init_files.fd_array[0], \
Eric Dumazet0c9e63f2006-03-23 03:00:12 -080016 .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \
17 .open_fds = (fd_set *)&init_files.open_fds_init, \
Dipankar Sarmaab2af1f2005-09-09 13:04:13 -070018 .rcu = RCU_HEAD_INIT, \
Dipankar Sarmaab2af1f2005-09-09 13:04:13 -070019 .next = NULL, \
Dipankar Sarmabadf1662005-09-09 13:04:10 -070020}
21
22#define INIT_FILES \
23{ \
24 .count = ATOMIC_INIT(1), \
Dipankar Sarmaab2af1f2005-09-09 13:04:13 -070025 .fdt = &init_files.fdtab, \
Dipankar Sarmabadf1662005-09-09 13:04:10 -070026 .fdtab = INIT_FDTABLE, \
Ingo Molnare4d91912006-07-03 00:24:34 -070027 .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \
Eric Dumazet0c9e63f2006-03-23 03:00:12 -080028 .next_fd = 0, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 .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), \
Ingo Molnare4d91912006-07-03 00:24:34 -070042 .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 .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), \
Ingo Molnare4d91912006-07-03 00:24:34 -070054 .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \
Linus Torvalds1da177e2005-04-16 15:20:36 -070055 .mmlist = LIST_HEAD_INIT(name.mmlist), \
56 .cpu_vm_mask = CPU_MASK_ALL, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070057}
58
Cedric Le Goater1ec320a2006-12-08 02:37:55 -080059#define INIT_SIGNALS(sig) { \
60 .count = ATOMIC_INIT(1), \
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
Cedric Le Goater1ec320a2006-12-08 02:37:55 -080062 .shared_pending = { \
Linus Torvalds1da177e2005-04-16 15:20:36 -070063 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
Cedric Le Goater1ec320a2006-12-08 02:37:55 -080064 .signal = {{0}}}, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \
66 .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \
67 .rlim = INIT_RLIMITS, \
Oleg Nesterovc7c64642006-03-28 16:11:09 -080068 .pgrp = 1, \
Cedric Le Goater1ec320a2006-12-08 02:37:55 -080069 .tty_old_pgrp = 0, \
70 { .__session = 1}, \
Linus Torvalds1da177e2005-04-16 15:20:36 -070071}
72
Serge E. Hallynab516012006-10-02 02:18:06 -070073extern struct nsproxy init_nsproxy;
74#define INIT_NSPROXY(nsproxy) { \
Cedric Le Goater9a575a92006-12-08 02:37:59 -080075 .pid_ns = &init_pid_ns, \
Serge E. Hallynab516012006-10-02 02:18:06 -070076 .count = ATOMIC_INIT(1), \
Peter Zijlstra6cfd76a2006-12-06 20:37:22 -080077 .nslock = __SPIN_LOCK_UNLOCKED(nsproxy.nslock), \
Serge E. Hallyn4865ecf2006-10-02 02:18:14 -070078 .uts_ns = &init_uts_ns, \
Kirill Korotaev6b3286e2006-12-08 02:37:56 -080079 .mnt_ns = NULL, \
Kirill Korotaev73ea4132006-10-02 02:18:20 -070080 INIT_IPC_NS(ipc_ns) \
Serge E. Hallynab516012006-10-02 02:18:06 -070081}
82
Linus Torvalds1da177e2005-04-16 15:20:36 -070083#define INIT_SIGHAND(sighand) { \
84 .count = ATOMIC_INIT(1), \
85 .action = { { { .sa_handler = NULL, } }, }, \
Ingo Molnare4d91912006-07-03 00:24:34 -070086 .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
Linus Torvalds1da177e2005-04-16 15:20:36 -070087}
88
89extern struct group_info init_groups;
90
91/*
92 * INIT_TASK is used to set up the first task table, touch at
93 * your own risk!. Base=0, limit=0x1fffff (=2MB)
94 */
95#define INIT_TASK(tsk) \
96{ \
97 .state = 0, \
98 .thread_info = &init_thread_info, \
99 .usage = ATOMIC_INIT(2), \
100 .flags = 0, \
101 .lock_depth = -1, \
102 .prio = MAX_PRIO-20, \
103 .static_prio = MAX_PRIO-20, \
Ingo Molnarb29739f2006-06-27 02:54:51 -0700104 .normal_prio = MAX_PRIO-20, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 .policy = SCHED_NORMAL, \
106 .cpus_allowed = CPU_MASK_ALL, \
107 .mm = NULL, \
108 .active_mm = &init_mm, \
109 .run_list = LIST_HEAD_INIT(tsk.run_list), \
Jens Axboe22e2c502005-06-27 10:55:12 +0200110 .ioprio = 0, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111 .time_slice = HZ, \
112 .tasks = LIST_HEAD_INIT(tsk.tasks), \
113 .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \
114 .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \
115 .real_parent = &tsk, \
116 .parent = &tsk, \
117 .children = LIST_HEAD_INIT(tsk.children), \
118 .sibling = LIST_HEAD_INIT(tsk.sibling), \
119 .group_leader = &tsk, \
120 .group_info = &init_groups, \
121 .cap_effective = CAP_INIT_EFF_SET, \
122 .cap_inheritable = CAP_INIT_INH_SET, \
123 .cap_permitted = CAP_FULL_SET, \
124 .keep_capabilities = 0, \
125 .user = INIT_USER, \
126 .comm = "swapper", \
127 .thread = INIT_THREAD, \
128 .fs = &init_fs, \
129 .files = &init_files, \
130 .signal = &init_signals, \
131 .sighand = &init_sighand, \
Serge E. Hallynab516012006-10-02 02:18:06 -0700132 .nsproxy = &init_nsproxy, \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 .pending = { \
134 .list = LIST_HEAD_INIT(tsk.pending.list), \
135 .signal = {{0}}}, \
136 .blocked = {{0}}, \
Ingo Molnare4d91912006-07-03 00:24:34 -0700137 .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138 .journal_info = NULL, \
139 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
Jens Axboe22e2c502005-06-27 10:55:12 +0200140 .fs_excl = ATOMIC_INIT(0), \
Ingo Molnarb29739f2006-06-27 02:54:51 -0700141 .pi_lock = SPIN_LOCK_UNLOCKED, \
Ingo Molnarde30a2b2006-07-03 00:24:42 -0700142 INIT_TRACE_IRQFLAGS \
Ingo Molnarfbb9ce952006-07-03 00:24:50 -0700143 INIT_LOCKDEP \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144}
145
146
147#define INIT_CPU_TIMERS(cpu_timers) \
148{ \
149 LIST_HEAD_INIT(cpu_timers[0]), \
150 LIST_HEAD_INIT(cpu_timers[1]), \
151 LIST_HEAD_INIT(cpu_timers[2]), \
152}
153
154
155#endif