1 #ifndef _LINUX__INIT_TASK_H
2 #define _LINUX__INIT_TASK_H
4 #include <linux/rcupdate.h>
5 #include <linux/irqflags.h>
6 #include <linux/utsname.h>
7 #include <linux/lockdep.h>
9 #include <linux/pid_namespace.h>
10 #include <linux/user_namespace.h>
11 #include <linux/securebits.h>
12 #include <net/net_namespace.h>
14 extern struct files_struct init_files
;
16 #define INIT_KIOCTX(name, which_mm) \
18 .users = ATOMIC_INIT(1), \
23 .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
24 .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
29 #define INIT_MM(name) \
32 .pgd = swapper_pg_dir, \
33 .mm_users = ATOMIC_INIT(2), \
34 .mm_count = ATOMIC_INIT(1), \
35 .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \
36 .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \
37 .mmlist = LIST_HEAD_INIT(name.mmlist), \
38 .cpu_vm_mask = CPU_MASK_ALL, \
41 #define INIT_SIGNALS(sig) { \
42 .count = ATOMIC_INIT(1), \
43 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
45 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
47 .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \
48 .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \
49 .rlim = INIT_RLIMITS, \
52 extern struct nsproxy init_nsproxy
;
53 #define INIT_NSPROXY(nsproxy) { \
54 .pid_ns = &init_pid_ns, \
55 .count = ATOMIC_INIT(1), \
56 .uts_ns = &init_uts_ns, \
60 .user_ns = &init_user_ns, \
63 #define INIT_SIGHAND(sighand) { \
64 .count = ATOMIC_INIT(1), \
65 .action = { { { .sa_handler = NULL, } }, }, \
66 .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
67 .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \
70 extern struct group_info init_groups
;
72 #define INIT_STRUCT_PID { \
73 .count = ATOMIC_INIT(1), \
75 { .first = &init_task.pids[PIDTYPE_PID].node }, \
76 { .first = &init_task.pids[PIDTYPE_PGID].node }, \
77 { .first = &init_task.pids[PIDTYPE_SID].node }, \
79 .rcu = RCU_HEAD_INIT, \
84 .pid_chain = { .next = NULL, .pprev = NULL }, \
88 #define INIT_PID_LINK(type) \
92 .pprev = &init_struct_pid.tasks[type].first, \
94 .pid = &init_struct_pid, \
97 #ifdef CONFIG_AUDITSYSCALL
105 #ifdef CONFIG_SECURITY_FILE_CAPABILITIES
107 * Because of the reduced scope of CAP_SETPCAP when filesystem
108 * capabilities are in effect, it is safe to allow CAP_SETPCAP to
109 * be available in the default configuration.
111 # define CAP_INIT_BSET CAP_FULL_SET
113 # define CAP_INIT_BSET CAP_INIT_EFF_SET
116 #ifdef CONFIG_PERF_COUNTERS
117 # define INIT_PERF_COUNTERS(tsk) \
118 .perf_counter_ctx.counter_list = \
119 LIST_HEAD_INIT(tsk.perf_counter_ctx.counter_list),
121 # define INIT_PERF_COUNTERS(tsk)
125 * INIT_TASK is used to set up the first task table, touch at
126 * your own risk!. Base=0, limit=0x1fffff (=2MB)
128 #define INIT_TASK(tsk) \
131 .stack = &init_thread_info, \
132 .usage = ATOMIC_INIT(2), \
133 .flags = PF_KTHREAD, \
135 .prio = MAX_PRIO-20, \
136 .static_prio = MAX_PRIO-20, \
137 .normal_prio = MAX_PRIO-20, \
138 .policy = SCHED_NORMAL, \
139 .cpus_allowed = CPU_MASK_ALL, \
141 .active_mm = &init_mm, \
143 .group_node = LIST_HEAD_INIT(tsk.se.group_node), \
146 .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \
148 .nr_cpus_allowed = NR_CPUS, \
150 .tasks = LIST_HEAD_INIT(tsk.tasks), \
151 .ptraced = LIST_HEAD_INIT(tsk.ptraced), \
152 .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \
153 .real_parent = &tsk, \
155 .children = LIST_HEAD_INIT(tsk.children), \
156 .sibling = LIST_HEAD_INIT(tsk.sibling), \
157 .group_leader = &tsk, \
158 .group_info = &init_groups, \
159 .cap_effective = CAP_INIT_EFF_SET, \
160 .cap_inheritable = CAP_INIT_INH_SET, \
161 .cap_permitted = CAP_FULL_SET, \
162 .cap_bset = CAP_INIT_BSET, \
163 .securebits = SECUREBITS_DEFAULT, \
166 .thread = INIT_THREAD, \
168 .files = &init_files, \
169 .signal = &init_signals, \
170 .sighand = &init_sighand, \
171 .nsproxy = &init_nsproxy, \
173 .list = LIST_HEAD_INIT(tsk.pending.list), \
176 .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \
177 .journal_info = NULL, \
178 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
179 .fs_excl = ATOMIC_INIT(0), \
180 .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \
181 .timer_slack_ns = 50000, /* 50 usec default slack */ \
183 [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \
184 [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \
185 [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \
187 .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \
189 INIT_TRACE_IRQFLAGS \
191 INIT_PERF_COUNTERS(tsk) \
195 #define INIT_CPU_TIMERS(cpu_timers) \
197 LIST_HEAD_INIT(cpu_timers[0]), \
198 LIST_HEAD_INIT(cpu_timers[1]), \
199 LIST_HEAD_INIT(cpu_timers[2]), \
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