1 #ifndef _LINUX__INIT_TASK_H
2 #define _LINUX__INIT_TASK_H
4 #include <linux/file.h>
5 #include <linux/rcupdate.h>
6 #include <linux/irqflags.h>
7 #include <linux/utsname.h>
8 #include <linux/lockdep.h>
10 #include <linux/pid_namespace.h>
12 #define INIT_FDTABLE \
14 .max_fds = NR_OPEN_DEFAULT, \
15 .fd = &init_files.fd_array[0], \
16 .close_on_exec = (fd_set *)&init_files.close_on_exec_init, \
17 .open_fds = (fd_set *)&init_files.open_fds_init, \
18 .rcu = RCU_HEAD_INIT, \
24 .count = ATOMIC_INIT(1), \
25 .fdt = &init_files.fdtab, \
26 .fdtab = INIT_FDTABLE, \
27 .file_lock = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \
29 .close_on_exec_init = { { 0, } }, \
30 .open_fds_init = { { 0, } }, \
31 .fd_array = { NULL, } \
34 #define INIT_KIOCTX(name, which_mm) \
36 .users = ATOMIC_INIT(1), \
41 .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
42 .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
47 #define INIT_MM(name) \
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), \
54 .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \
55 .mmlist = LIST_HEAD_INIT(name.mmlist), \
56 .cpu_vm_mask = CPU_MASK_ALL, \
59 #define INIT_SIGNALS(sig) { \
60 .count = ATOMIC_INIT(1), \
61 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
63 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
65 .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \
66 .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \
67 .rlim = INIT_RLIMITS, \
69 .tty_old_pgrp = NULL, \
73 extern struct nsproxy init_nsproxy;
74 #define INIT_NSPROXY(nsproxy) { \
75 .pid_ns = &init_pid_ns, \
76 .count = ATOMIC_INIT(1), \
77 .nslock = __SPIN_LOCK_UNLOCKED(nsproxy.nslock), \
78 .uts_ns = &init_uts_ns, \
83 #define INIT_SIGHAND(sighand) { \
84 .count = ATOMIC_INIT(1), \
85 .action = { { { .sa_handler = NULL, } }, }, \
86 .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
89 extern struct group_info init_groups;
91 #define INIT_STRUCT_PID { \
92 .count = ATOMIC_INIT(1), \
94 /* Don't put this struct pid in pid_hash */ \
95 .pid_chain = { .next = NULL, .pprev = NULL }, \
97 { .first = &init_task.pids[PIDTYPE_PID].node }, \
98 { .first = &init_task.pids[PIDTYPE_PGID].node }, \
99 { .first = &init_task.pids[PIDTYPE_SID].node }, \
101 .rcu = RCU_HEAD_INIT, \
104 #define INIT_PID_LINK(type) \
108 .pprev = &init_struct_pid.tasks[type].first, \
110 .pid = &init_struct_pid, \
114 * INIT_TASK is used to set up the first task table, touch at
115 * your own risk!. Base=0, limit=0x1fffff (=2MB)
117 #define INIT_TASK(tsk) \
120 .stack = &init_thread_info, \
121 .usage = ATOMIC_INIT(2), \
124 .prio = MAX_PRIO-20, \
125 .static_prio = MAX_PRIO-20, \
126 .normal_prio = MAX_PRIO-20, \
127 .policy = SCHED_NORMAL, \
128 .cpus_allowed = CPU_MASK_ALL, \
130 .active_mm = &init_mm, \
131 .run_list = LIST_HEAD_INIT(tsk.run_list), \
134 .tasks = LIST_HEAD_INIT(tsk.tasks), \
135 .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \
136 .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \
137 .real_parent = &tsk, \
139 .children = LIST_HEAD_INIT(tsk.children), \
140 .sibling = LIST_HEAD_INIT(tsk.sibling), \
141 .group_leader = &tsk, \
142 .group_info = &init_groups, \
143 .cap_effective = CAP_INIT_EFF_SET, \
144 .cap_inheritable = CAP_INIT_INH_SET, \
145 .cap_permitted = CAP_FULL_SET, \
146 .keep_capabilities = 0, \
149 .thread = INIT_THREAD, \
151 .files = &init_files, \
152 .signal = &init_signals, \
153 .sighand = &init_sighand, \
154 .nsproxy = &init_nsproxy, \
156 .list = LIST_HEAD_INIT(tsk.pending.list), \
159 .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \
160 .journal_info = NULL, \
161 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
162 .fs_excl = ATOMIC_INIT(0), \
163 .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \
165 [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \
166 [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \
167 [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \
169 INIT_TRACE_IRQFLAGS \
174 #define INIT_CPU_TIMERS(cpu_timers) \
176 LIST_HEAD_INIT(cpu_timers[0]), \
177 LIST_HEAD_INIT(cpu_timers[1]), \
178 LIST_HEAD_INIT(cpu_timers[2]), \