Commit | Line | Data |
---|---|---|
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 | |
806c09a7 DF |
15 | #ifdef CONFIG_SMP |
16 | # define INIT_PUSHABLE_TASKS(tsk) \ | |
17 | .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), | |
18 | #else | |
19 | # define INIT_PUSHABLE_TASKS(tsk) | |
20 | #endif | |
21 | ||
f52111b1 | 22 | extern struct files_struct init_files; |
18d8fda7 | 23 | extern struct fs_struct init_fs; |
1da177e4 | 24 | |
4714d1d3 | 25 | #ifdef CONFIG_CGROUPS |
257058ae TH |
26 | #define INIT_GROUP_RWSEM(sig) \ |
27 | .group_rwsem = __RWSEM_INITIALIZER(sig.group_rwsem), | |
4714d1d3 | 28 | #else |
257058ae | 29 | #define INIT_GROUP_RWSEM(sig) |
4714d1d3 BB |
30 | #endif |
31 | ||
cc9a6c87 MG |
32 | #ifdef CONFIG_CPUSETS |
33 | #define INIT_CPUSET_SEQ \ | |
34 | .mems_allowed_seq = SEQCNT_ZERO, | |
35 | #else | |
36 | #define INIT_CPUSET_SEQ | |
37 | #endif | |
38 | ||
1ec320af | 39 | #define INIT_SIGNALS(sig) { \ |
b3ac022c | 40 | .nr_threads = 1, \ |
1da177e4 | 41 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
1ec320af | 42 | .shared_pending = { \ |
1da177e4 | 43 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
1ec320af | 44 | .signal = {{0}}}, \ |
1da177e4 LT |
45 | .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ |
46 | .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ | |
47 | .rlim = INIT_RLIMITS, \ | |
4cd4c1b4 PZ |
48 | .cputimer = { \ |
49 | .cputime = INIT_CPUTIME, \ | |
50 | .running = 0, \ | |
ee30a7b2 | 51 | .lock = __RAW_SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \ |
4cd4c1b4 | 52 | }, \ |
9b1bf12d KM |
53 | .cred_guard_mutex = \ |
54 | __MUTEX_INITIALIZER(sig.cred_guard_mutex), \ | |
257058ae | 55 | INIT_GROUP_RWSEM(sig) \ |
1da177e4 LT |
56 | } |
57 | ||
ab516013 | 58 | extern struct nsproxy init_nsproxy; |
ab516013 | 59 | |
1da177e4 LT |
60 | #define INIT_SIGHAND(sighand) { \ |
61 | .count = ATOMIC_INIT(1), \ | |
0a14a130 | 62 | .action = { { { .sa_handler = SIG_DFL, } }, }, \ |
e4d91918 | 63 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
b8fceee1 | 64 | .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ |
1da177e4 LT |
65 | } |
66 | ||
67 | extern struct group_info init_groups; | |
68 | ||
820e45db SB |
69 | #define INIT_STRUCT_PID { \ |
70 | .count = ATOMIC_INIT(1), \ | |
820e45db | 71 | .tasks = { \ |
f2001145 ON |
72 | { .first = NULL }, \ |
73 | { .first = NULL }, \ | |
74 | { .first = NULL }, \ | |
820e45db | 75 | }, \ |
4c3f2ead SB |
76 | .level = 0, \ |
77 | .numbers = { { \ | |
78 | .nr = 0, \ | |
79 | .ns = &init_pid_ns, \ | |
80 | .pid_chain = { .next = NULL, .pprev = NULL }, \ | |
81 | }, } \ | |
820e45db SB |
82 | } |
83 | ||
84 | #define INIT_PID_LINK(type) \ | |
85 | { \ | |
86 | .node = { \ | |
87 | .next = NULL, \ | |
f2001145 | 88 | .pprev = NULL, \ |
820e45db SB |
89 | }, \ |
90 | .pid = &init_struct_pid, \ | |
91 | } | |
92 | ||
bfef93a5 AV |
93 | #ifdef CONFIG_AUDITSYSCALL |
94 | #define INIT_IDS \ | |
4746ec5b EP |
95 | .loginuid = -1, \ |
96 | .sessionid = -1, | |
bfef93a5 AV |
97 | #else |
98 | #define INIT_IDS | |
99 | #endif | |
3b7391de | 100 | |
24278d14 PM |
101 | #ifdef CONFIG_RCU_BOOST |
102 | #define INIT_TASK_RCU_BOOST() \ | |
103 | .rcu_boost_mutex = NULL, | |
104 | #else | |
105 | #define INIT_TASK_RCU_BOOST() | |
106 | #endif | |
6b3ef48a | 107 | #ifdef CONFIG_TREE_PREEMPT_RCU |
a57eb940 PM |
108 | #define INIT_TASK_RCU_TREE_PREEMPT() \ |
109 | .rcu_blocked_node = NULL, | |
110 | #else | |
111 | #define INIT_TASK_RCU_TREE_PREEMPT(tsk) | |
112 | #endif | |
113 | #ifdef CONFIG_PREEMPT_RCU | |
f41d911f PM |
114 | #define INIT_TASK_RCU_PREEMPT(tsk) \ |
115 | .rcu_read_lock_nesting = 0, \ | |
116 | .rcu_read_unlock_special = 0, \ | |
a57eb940 | 117 | .rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), \ |
24278d14 PM |
118 | INIT_TASK_RCU_TREE_PREEMPT() \ |
119 | INIT_TASK_RCU_BOOST() | |
f41d911f PM |
120 | #else |
121 | #define INIT_TASK_RCU_PREEMPT(tsk) | |
122 | #endif | |
123 | ||
b6dff3ec DH |
124 | extern struct cred init_cred; |
125 | ||
8323f26c PZ |
126 | extern struct task_group root_task_group; |
127 | ||
128 | #ifdef CONFIG_CGROUP_SCHED | |
129 | # define INIT_CGROUP_SCHED(tsk) \ | |
130 | .sched_task_group = &root_task_group, | |
131 | #else | |
132 | # define INIT_CGROUP_SCHED(tsk) | |
133 | #endif | |
134 | ||
cdd6c482 | 135 | #ifdef CONFIG_PERF_EVENTS |
8323f26c | 136 | # define INIT_PERF_EVENTS(tsk) \ |
cdd6c482 IM |
137 | .perf_event_mutex = \ |
138 | __MUTEX_INITIALIZER(tsk.perf_event_mutex), \ | |
139 | .perf_event_list = LIST_HEAD_INIT(tsk.perf_event_list), | |
082ff5a2 | 140 | #else |
cdd6c482 | 141 | # define INIT_PERF_EVENTS(tsk) |
082ff5a2 PZ |
142 | #endif |
143 | ||
f1c6f1a7 CE |
144 | #define INIT_TASK_COMM "swapper" |
145 | ||
1da177e4 LT |
146 | /* |
147 | * INIT_TASK is used to set up the first task table, touch at | |
148 | * your own risk!. Base=0, limit=0x1fffff (=2MB) | |
149 | */ | |
150 | #define INIT_TASK(tsk) \ | |
151 | { \ | |
152 | .state = 0, \ | |
f7e4217b | 153 | .stack = &init_thread_info, \ |
1da177e4 | 154 | .usage = ATOMIC_INIT(2), \ |
7b34e428 | 155 | .flags = PF_KTHREAD, \ |
1da177e4 LT |
156 | .prio = MAX_PRIO-20, \ |
157 | .static_prio = MAX_PRIO-20, \ | |
b29739f9 | 158 | .normal_prio = MAX_PRIO-20, \ |
1da177e4 LT |
159 | .policy = SCHED_NORMAL, \ |
160 | .cpus_allowed = CPU_MASK_ALL, \ | |
29baa747 | 161 | .nr_cpus_allowed= NR_CPUS, \ |
1da177e4 LT |
162 | .mm = NULL, \ |
163 | .active_mm = &init_mm, \ | |
4a55bd5e PZ |
164 | .se = { \ |
165 | .group_node = LIST_HEAD_INIT(tsk.se.group_node), \ | |
166 | }, \ | |
fa717060 PZ |
167 | .rt = { \ |
168 | .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \ | |
de5bdff7 | 169 | .time_slice = RR_TIMESLICE, \ |
6f505b16 | 170 | }, \ |
1da177e4 | 171 | .tasks = LIST_HEAD_INIT(tsk.tasks), \ |
806c09a7 | 172 | INIT_PUSHABLE_TASKS(tsk) \ |
8323f26c | 173 | INIT_CGROUP_SCHED(tsk) \ |
f470021a RM |
174 | .ptraced = LIST_HEAD_INIT(tsk.ptraced), \ |
175 | .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \ | |
1da177e4 LT |
176 | .real_parent = &tsk, \ |
177 | .parent = &tsk, \ | |
178 | .children = LIST_HEAD_INIT(tsk.children), \ | |
179 | .sibling = LIST_HEAD_INIT(tsk.sibling), \ | |
180 | .group_leader = &tsk, \ | |
d36cc701 PM |
181 | RCU_POINTER_INITIALIZER(real_cred, &init_cred), \ |
182 | RCU_POINTER_INITIALIZER(cred, &init_cred), \ | |
f1c6f1a7 | 183 | .comm = INIT_TASK_COMM, \ |
1da177e4 LT |
184 | .thread = INIT_THREAD, \ |
185 | .fs = &init_fs, \ | |
186 | .files = &init_files, \ | |
187 | .signal = &init_signals, \ | |
188 | .sighand = &init_sighand, \ | |
ab516013 | 189 | .nsproxy = &init_nsproxy, \ |
1da177e4 LT |
190 | .pending = { \ |
191 | .list = LIST_HEAD_INIT(tsk.pending.list), \ | |
192 | .signal = {{0}}}, \ | |
193 | .blocked = {{0}}, \ | |
e4d91918 | 194 | .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \ |
b6e3224f | 195 | .journal_info = NULL, \ |
1da177e4 | 196 | .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ |
1d615482 | 197 | .pi_lock = __RAW_SPIN_LOCK_UNLOCKED(tsk.pi_lock), \ |
6976675d | 198 | .timer_slack_ns = 50000, /* 50 usec default slack */ \ |
820e45db SB |
199 | .pids = { \ |
200 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \ | |
201 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ | |
202 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ | |
203 | }, \ | |
fa2755e2 | 204 | .thread_group = LIST_HEAD_INIT(tsk.thread_group), \ |
bfef93a5 | 205 | INIT_IDS \ |
cdd6c482 | 206 | INIT_PERF_EVENTS(tsk) \ |
de30a2b3 | 207 | INIT_TRACE_IRQFLAGS \ |
fbb9ce95 | 208 | INIT_LOCKDEP \ |
5ac9f622 | 209 | INIT_FTRACE_GRAPH \ |
261842b7 | 210 | INIT_TRACE_RECURSION \ |
f41d911f | 211 | INIT_TASK_RCU_PREEMPT(tsk) \ |
cc9a6c87 | 212 | INIT_CPUSET_SEQ \ |
1da177e4 LT |
213 | } |
214 | ||
215 | ||
216 | #define INIT_CPU_TIMERS(cpu_timers) \ | |
217 | { \ | |
218 | LIST_HEAD_INIT(cpu_timers[0]), \ | |
219 | LIST_HEAD_INIT(cpu_timers[1]), \ | |
220 | LIST_HEAD_INIT(cpu_timers[2]), \ | |
221 | } | |
222 | ||
857eceeb | 223 | /* Attach to the init_task data structure for proper alignment */ |
2af7687f | 224 | #define __init_task_data __attribute__((__section__(".data..init_task"))) |
857eceeb | 225 | |
1da177e4 LT |
226 | |
227 | #endif |