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1da177e4 LT |
1 | #ifndef _LINUX__INIT_TASK_H |
2 | #define _LINUX__INIT_TASK_H | |
3 | ||
ab2af1f5 | 4 | #include <linux/rcupdate.h> |
de30a2b3 | 5 | #include <linux/irqflags.h> |
4865ecf1 | 6 | #include <linux/utsname.h> |
fbb9ce95 | 7 | #include <linux/lockdep.h> |
5ac9f622 | 8 | #include <linux/ftrace.h> |
73ea4130 | 9 | #include <linux/ipc.h> |
9a575a92 | 10 | #include <linux/pid_namespace.h> |
acce292c | 11 | #include <linux/user_namespace.h> |
3898b1b4 | 12 | #include <linux/securebits.h> |
772698f6 | 13 | #include <net/net_namespace.h> |
1da177e4 | 14 | |
f52111b1 | 15 | extern struct files_struct init_files; |
18d8fda7 | 16 | extern struct fs_struct init_fs; |
1da177e4 | 17 | |
1ec320af CLG |
18 | #define INIT_SIGNALS(sig) { \ |
19 | .count = ATOMIC_INIT(1), \ | |
1da177e4 | 20 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
1ec320af | 21 | .shared_pending = { \ |
1da177e4 | 22 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
1ec320af | 23 | .signal = {{0}}}, \ |
1da177e4 LT |
24 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ |
25 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ | |
26 | .rlim = INIT_RLIMITS, \ | |
4cd4c1b4 PZ |
27 | .cputimer = { \ |
28 | .cputime = INIT_CPUTIME, \ | |
29 | .running = 0, \ | |
30 | .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \ | |
31 | }, \ | |
1da177e4 LT |
32 | } |
33 | ||
ab516013 SH |
34 | extern struct nsproxy init_nsproxy; |
35 | #define INIT_NSPROXY(nsproxy) { \ | |
9a575a92 | 36 | .pid_ns = &init_pid_ns, \ |
ab516013 | 37 | .count = ATOMIC_INIT(1), \ |
4865ecf1 | 38 | .uts_ns = &init_uts_ns, \ |
6b3286ed | 39 | .mnt_ns = NULL, \ |
4fabcd71 | 40 | INIT_NET_NS(net_ns) \ |
73ea4130 | 41 | INIT_IPC_NS(ipc_ns) \ |
ab516013 SH |
42 | } |
43 | ||
1da177e4 LT |
44 | #define INIT_SIGHAND(sighand) { \ |
45 | .count = ATOMIC_INIT(1), \ | |
46 | .action = { { { .sa_handler = NULL, } }, }, \ | |
e4d91918 | 47 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
b8fceee1 | 48 | .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ |
1da177e4 LT |
49 | } |
50 | ||
51 | extern struct group_info init_groups; | |
52 | ||
820e45db SB |
53 | #define INIT_STRUCT_PID { \ |
54 | .count = ATOMIC_INIT(1), \ | |
820e45db SB |
55 | .tasks = { \ |
56 | { .first = &init_task.pids[PIDTYPE_PID].node }, \ | |
57 | { .first = &init_task.pids[PIDTYPE_PGID].node }, \ | |
58 | { .first = &init_task.pids[PIDTYPE_SID].node }, \ | |
59 | }, \ | |
60 | .rcu = RCU_HEAD_INIT, \ | |
4c3f2ead SB |
61 | .level = 0, \ |
62 | .numbers = { { \ | |
63 | .nr = 0, \ | |
64 | .ns = &init_pid_ns, \ | |
65 | .pid_chain = { .next = NULL, .pprev = NULL }, \ | |
66 | }, } \ | |
820e45db SB |
67 | } |
68 | ||
69 | #define INIT_PID_LINK(type) \ | |
70 | { \ | |
71 | .node = { \ | |
72 | .next = NULL, \ | |
73 | .pprev = &init_struct_pid.tasks[type].first, \ | |
74 | }, \ | |
75 | .pid = &init_struct_pid, \ | |
76 | } | |
77 | ||
bfef93a5 AV |
78 | #ifdef CONFIG_AUDITSYSCALL |
79 | #define INIT_IDS \ | |
4746ec5b EP |
80 | .loginuid = -1, \ |
81 | .sessionid = -1, | |
bfef93a5 AV |
82 | #else |
83 | #define INIT_IDS | |
84 | #endif | |
3b7391de | 85 | |
3b7391de SH |
86 | /* |
87 | * Because of the reduced scope of CAP_SETPCAP when filesystem | |
88 | * capabilities are in effect, it is safe to allow CAP_SETPCAP to | |
89 | * be available in the default configuration. | |
90 | */ | |
91 | # define CAP_INIT_BSET CAP_FULL_SET | |
3b7391de | 92 | |
6b3ef48a | 93 | #ifdef CONFIG_TREE_PREEMPT_RCU |
f41d911f PM |
94 | #define INIT_TASK_RCU_PREEMPT(tsk) \ |
95 | .rcu_read_lock_nesting = 0, \ | |
96 | .rcu_read_unlock_special = 0, \ | |
dd5d19ba | 97 | .rcu_blocked_node = NULL, \ |
f41d911f PM |
98 | .rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), |
99 | #else | |
100 | #define INIT_TASK_RCU_PREEMPT(tsk) | |
101 | #endif | |
102 | ||
b6dff3ec DH |
103 | extern struct cred init_cred; |
104 | ||
cdd6c482 IM |
105 | #ifdef CONFIG_PERF_EVENTS |
106 | # define INIT_PERF_EVENTS(tsk) \ | |
107 | .perf_event_mutex = \ | |
108 | __MUTEX_INITIALIZER(tsk.perf_event_mutex), \ | |
109 | .perf_event_list = LIST_HEAD_INIT(tsk.perf_event_list), | |
082ff5a2 | 110 | #else |
cdd6c482 | 111 | # define INIT_PERF_EVENTS(tsk) |
082ff5a2 PZ |
112 | #endif |
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 | 122 | .usage = ATOMIC_INIT(2), \ |
7b34e428 | 123 | .flags = PF_KTHREAD, \ |
1da177e4 LT |
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, \ | |
4a55bd5e PZ |
132 | .se = { \ |
133 | .group_node = LIST_HEAD_INIT(tsk.se.group_node), \ | |
134 | }, \ | |
fa717060 PZ |
135 | .rt = { \ |
136 | .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \ | |
6f505b16 PZ |
137 | .time_slice = HZ, \ |
138 | .nr_cpus_allowed = NR_CPUS, \ | |
139 | }, \ | |
1da177e4 | 140 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ |
917b627d | 141 | .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), \ |
f470021a RM |
142 | .ptraced = LIST_HEAD_INIT(tsk.ptraced), \ |
143 | .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \ | |
1da177e4 LT |
144 | .real_parent = &tsk, \ |
145 | .parent = &tsk, \ | |
146 | .children = LIST_HEAD_INIT(tsk.children), \ | |
147 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ | |
148 | .group_leader = &tsk, \ | |
3b11a1de | 149 | .real_cred = &init_cred, \ |
f1752eec | 150 | .cred = &init_cred, \ |
5e751e99 DH |
151 | .cred_guard_mutex = \ |
152 | __MUTEX_INITIALIZER(tsk.cred_guard_mutex), \ | |
1da177e4 LT |
153 | .comm = "swapper", \ |
154 | .thread = INIT_THREAD, \ | |
155 | .fs = &init_fs, \ | |
156 | .files = &init_files, \ | |
157 | .signal = &init_signals, \ | |
158 | .sighand = &init_sighand, \ | |
ab516013 | 159 | .nsproxy = &init_nsproxy, \ |
1da177e4 LT |
160 | .pending = { \ |
161 | .list = LIST_HEAD_INIT(tsk.pending.list), \ | |
162 | .signal = {{0}}}, \ | |
163 | .blocked = {{0}}, \ | |
e4d91918 | 164 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
b6e3224f | 165 | .journal_info = NULL, \ |
1da177e4 | 166 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ |
22e2c507 | 167 | .fs_excl = ATOMIC_INIT(0), \ |
1d615482 | 168 | .pi_lock = __RAW_SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ |
6976675d | 169 | .timer_slack_ns = 50000, /* 50 usec default slack */ \ |
820e45db SB |
170 | .pids = { \ |
171 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ | |
172 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ | |
173 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ | |
174 | }, \ | |
3e26c149 | 175 | .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ |
bfef93a5 | 176 | INIT_IDS \ |
cdd6c482 | 177 | INIT_PERF_EVENTS(tsk) \ |
de30a2b3 | 178 | INIT_TRACE_IRQFLAGS \ |
fbb9ce95 | 179 | INIT_LOCKDEP \ |
5ac9f622 | 180 | INIT_FTRACE_GRAPH \ |
261842b7 | 181 | INIT_TRACE_RECURSION \ |
f41d911f | 182 | INIT_TASK_RCU_PREEMPT(tsk) \ |
1da177e4 LT |
183 | } |
184 | ||
185 | ||
186 | #define INIT_CPU_TIMERS(cpu_timers) \ | |
187 | { \ | |
188 | LIST_HEAD_INIT(cpu_timers[0]), \ | |
189 | LIST_HEAD_INIT(cpu_timers[1]), \ | |
190 | LIST_HEAD_INIT(cpu_timers[2]), \ | |
191 | } | |
192 | ||
857eceeb TA |
193 | /* Attach to the init_task data structure for proper alignment */ |
194 | #define __init_task_data __attribute__((__section__(".data.init_task"))) | |
195 | ||
1da177e4 LT |
196 | |
197 | #endif |