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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> |
73ea4130 | 9 | #include <linux/ipc.h> |
9a575a92 | 10 | #include <linux/pid_namespace.h> |
1da177e4 | 11 | |
badf1662 DS |
12 | #define INIT_FDTABLE \ |
13 | { \ | |
1da177e4 | 14 | .max_fds = NR_OPEN_DEFAULT, \ |
1da177e4 | 15 | .fd = &init_files.fd_array[0], \ |
0c9e63fd ED |
16 | .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \ |
17 | .open_fds = (fd_set *)&init_files.open_fds_init, \ | |
ab2af1f5 | 18 | .rcu = RCU_HEAD_INIT, \ |
ab2af1f5 | 19 | .next = NULL, \ |
badf1662 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, \ |
1da177e4 LT |
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), \ |
1da177e4 LT |
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), \ |
1da177e4 LT |
55 | .mmlist = LIST_HEAD_INIT(name.mmlist), \ |
56 | .cpu_vm_mask = CPU_MASK_ALL, \ | |
1da177e4 LT |
57 | } |
58 | ||
1ec320af CLG |
59 | #define INIT_SIGNALS(sig) { \ |
60 | .count = ATOMIC_INIT(1), \ | |
1da177e4 | 61 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
1ec320af | 62 | .shared_pending = { \ |
1da177e4 | 63 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
1ec320af | 64 | .signal = {{0}}}, \ |
1da177e4 LT |
65 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ |
66 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ | |
67 | .rlim = INIT_RLIMITS, \ | |
325aa33d | 68 | .pgrp = 0, \ |
ab521dc0 | 69 | .tty_old_pgrp = NULL, \ |
325aa33d | 70 | { .__session = 0}, \ |
1da177e4 LT |
71 | } |
72 | ||
ab516013 SH |
73 | extern struct nsproxy init_nsproxy; |
74 | #define INIT_NSPROXY(nsproxy) { \ | |
9a575a92 | 75 | .pid_ns = &init_pid_ns, \ |
ab516013 | 76 | .count = ATOMIC_INIT(1), \ |
6cfd76a2 | 77 | .nslock = __SPIN_LOCK_UNLOCKED(nsproxy.nslock), \ |
4865ecf1 | 78 | .uts_ns = &init_uts_ns, \ |
6b3286ed | 79 | .mnt_ns = NULL, \ |
73ea4130 | 80 | INIT_IPC_NS(ipc_ns) \ |
ab516013 SH |
81 | } |
82 | ||
1da177e4 LT |
83 | #define INIT_SIGHAND(sighand) { \ |
84 | .count = ATOMIC_INIT(1), \ | |
85 | .action = { { { .sa_handler = NULL, } }, }, \ | |
e4d91918 | 86 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
fba2afaa | 87 | .signalfd_list = LIST_HEAD_INIT(sighand.signalfd_list), \ |
1da177e4 LT |
88 | } |
89 | ||
90 | extern struct group_info init_groups; | |
91 | ||
820e45db SB |
92 | #define INIT_STRUCT_PID { \ |
93 | .count = ATOMIC_INIT(1), \ | |
94 | .nr = 0, \ | |
95 | /* Don't put this struct pid in pid_hash */ \ | |
96 | .pid_chain = { .next = NULL, .pprev = NULL }, \ | |
97 | .tasks = { \ | |
98 | { .first = &init_task.pids[PIDTYPE_PID].node }, \ | |
99 | { .first = &init_task.pids[PIDTYPE_PGID].node }, \ | |
100 | { .first = &init_task.pids[PIDTYPE_SID].node }, \ | |
101 | }, \ | |
102 | .rcu = RCU_HEAD_INIT, \ | |
103 | } | |
104 | ||
105 | #define INIT_PID_LINK(type) \ | |
106 | { \ | |
107 | .node = { \ | |
108 | .next = NULL, \ | |
109 | .pprev = &init_struct_pid.tasks[type].first, \ | |
110 | }, \ | |
111 | .pid = &init_struct_pid, \ | |
112 | } | |
113 | ||
1da177e4 LT |
114 | /* |
115 | * INIT_TASK is used to set up the first task table, touch at | |
116 | * your own risk!. Base=0, limit=0x1fffff (=2MB) | |
117 | */ | |
118 | #define INIT_TASK(tsk) \ | |
119 | { \ | |
120 | .state = 0, \ | |
f7e4217b | 121 | .stack = &init_thread_info, \ |
1da177e4 LT |
122 | .usage = ATOMIC_INIT(2), \ |
123 | .flags = 0, \ | |
124 | .lock_depth = -1, \ | |
125 | .prio = MAX_PRIO-20, \ | |
126 | .static_prio = MAX_PRIO-20, \ | |
b29739f9 | 127 | .normal_prio = MAX_PRIO-20, \ |
1da177e4 LT |
128 | .policy = SCHED_NORMAL, \ |
129 | .cpus_allowed = CPU_MASK_ALL, \ | |
130 | .mm = NULL, \ | |
131 | .active_mm = &init_mm, \ | |
132 | .run_list = LIST_HEAD_INIT(tsk.run_list), \ | |
22e2c507 | 133 | .ioprio = 0, \ |
1da177e4 LT |
134 | .time_slice = HZ, \ |
135 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ | |
136 | .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \ | |
137 | .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \ | |
138 | .real_parent = &tsk, \ | |
139 | .parent = &tsk, \ | |
140 | .children = LIST_HEAD_INIT(tsk.children), \ | |
141 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ | |
142 | .group_leader = &tsk, \ | |
143 | .group_info = &init_groups, \ | |
144 | .cap_effective = CAP_INIT_EFF_SET, \ | |
145 | .cap_inheritable = CAP_INIT_INH_SET, \ | |
146 | .cap_permitted = CAP_FULL_SET, \ | |
147 | .keep_capabilities = 0, \ | |
148 | .user = INIT_USER, \ | |
149 | .comm = "swapper", \ | |
150 | .thread = INIT_THREAD, \ | |
151 | .fs = &init_fs, \ | |
152 | .files = &init_files, \ | |
153 | .signal = &init_signals, \ | |
154 | .sighand = &init_sighand, \ | |
ab516013 | 155 | .nsproxy = &init_nsproxy, \ |
1da177e4 LT |
156 | .pending = { \ |
157 | .list = LIST_HEAD_INIT(tsk.pending.list), \ | |
158 | .signal = {{0}}}, \ | |
159 | .blocked = {{0}}, \ | |
e4d91918 | 160 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
1da177e4 LT |
161 | .journal_info = NULL, \ |
162 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ | |
22e2c507 | 163 | .fs_excl = ATOMIC_INIT(0), \ |
b32e41bb | 164 | .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ |
820e45db SB |
165 | .pids = { \ |
166 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ | |
167 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ | |
168 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ | |
169 | }, \ | |
de30a2b3 | 170 | INIT_TRACE_IRQFLAGS \ |
fbb9ce95 | 171 | INIT_LOCKDEP \ |
1da177e4 LT |
172 | } |
173 | ||
174 | ||
175 | #define INIT_CPU_TIMERS(cpu_timers) \ | |
176 | { \ | |
177 | LIST_HEAD_INIT(cpu_timers[0]), \ | |
178 | LIST_HEAD_INIT(cpu_timers[1]), \ | |
179 | LIST_HEAD_INIT(cpu_timers[2]), \ | |
180 | } | |
181 | ||
182 | ||
183 | #endif |