Linux 2.6.26-rc5
[linux-2.6/openmoko-kernel/knife-kernel.git] / include / linux / init_task.h
blob9927a88674a3bd3b5c1a5d4fe346f8a9889f6cc9
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>
8 #include <linux/ipc.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) \
17 { \
18 .users = ATOMIC_INIT(1), \
19 .dead = 0, \
20 .mm = &which_mm, \
21 .user_id = 0, \
22 .next = NULL, \
23 .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
24 .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
25 .reqs_active = 0U, \
26 .max_reqs = ~0U, \
29 #define INIT_MM(name) \
30 { \
31 .mm_rb = RB_ROOT, \
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),\
44 .shared_pending = { \
45 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
46 .signal = {{0}}}, \
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, \
57 .mnt_ns = NULL, \
58 INIT_NET_NS(net_ns) \
59 INIT_IPC_NS(ipc_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), \
74 .tasks = { \
75 { .first = &init_task.pids[PIDTYPE_PID].node }, \
76 { .first = &init_task.pids[PIDTYPE_PGID].node }, \
77 { .first = &init_task.pids[PIDTYPE_SID].node }, \
78 }, \
79 .rcu = RCU_HEAD_INIT, \
80 .level = 0, \
81 .numbers = { { \
82 .nr = 0, \
83 .ns = &init_pid_ns, \
84 .pid_chain = { .next = NULL, .pprev = NULL }, \
85 }, } \
88 #define INIT_PID_LINK(type) \
89 { \
90 .node = { \
91 .next = NULL, \
92 .pprev = &init_struct_pid.tasks[type].first, \
93 }, \
94 .pid = &init_struct_pid, \
97 #ifdef CONFIG_AUDITSYSCALL
98 #define INIT_IDS \
99 .loginuid = -1, \
100 .sessionid = -1,
101 #else
102 #define INIT_IDS
103 #endif
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
112 #else
113 # define CAP_INIT_BSET CAP_INIT_EFF_SET
114 #endif
117 * INIT_TASK is used to set up the first task table, touch at
118 * your own risk!. Base=0, limit=0x1fffff (=2MB)
120 #define INIT_TASK(tsk) \
122 .state = 0, \
123 .stack = &init_thread_info, \
124 .usage = ATOMIC_INIT(2), \
125 .flags = 0, \
126 .lock_depth = -1, \
127 .prio = MAX_PRIO-20, \
128 .static_prio = MAX_PRIO-20, \
129 .normal_prio = MAX_PRIO-20, \
130 .policy = SCHED_NORMAL, \
131 .cpus_allowed = CPU_MASK_ALL, \
132 .mm = NULL, \
133 .active_mm = &init_mm, \
134 .se = { \
135 .group_node = LIST_HEAD_INIT(tsk.se.group_node), \
136 }, \
137 .rt = { \
138 .run_list = LIST_HEAD_INIT(tsk.rt.run_list), \
139 .time_slice = HZ, \
140 .nr_cpus_allowed = NR_CPUS, \
141 }, \
142 .tasks = LIST_HEAD_INIT(tsk.tasks), \
143 .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \
144 .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \
145 .real_parent = &tsk, \
146 .parent = &tsk, \
147 .children = LIST_HEAD_INIT(tsk.children), \
148 .sibling = LIST_HEAD_INIT(tsk.sibling), \
149 .group_leader = &tsk, \
150 .group_info = &init_groups, \
151 .cap_effective = CAP_INIT_EFF_SET, \
152 .cap_inheritable = CAP_INIT_INH_SET, \
153 .cap_permitted = CAP_FULL_SET, \
154 .cap_bset = CAP_INIT_BSET, \
155 .securebits = SECUREBITS_DEFAULT, \
156 .user = INIT_USER, \
157 .comm = "swapper", \
158 .thread = INIT_THREAD, \
159 .fs = &init_fs, \
160 .files = &init_files, \
161 .signal = &init_signals, \
162 .sighand = &init_sighand, \
163 .nsproxy = &init_nsproxy, \
164 .pending = { \
165 .list = LIST_HEAD_INIT(tsk.pending.list), \
166 .signal = {{0}}}, \
167 .blocked = {{0}}, \
168 .alloc_lock = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock), \
169 .journal_info = NULL, \
170 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
171 .fs_excl = ATOMIC_INIT(0), \
172 .pi_lock = __SPIN_LOCK_UNLOCKED(tsk.pi_lock), \
173 .pids = { \
174 [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), \
175 [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \
176 [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \
177 }, \
178 .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \
179 INIT_IDS \
180 INIT_TRACE_IRQFLAGS \
181 INIT_LOCKDEP \
185 #define INIT_CPU_TIMERS(cpu_timers) \
187 LIST_HEAD_INIT(cpu_timers[0]), \
188 LIST_HEAD_INIT(cpu_timers[1]), \
189 LIST_HEAD_INIT(cpu_timers[2]), \
193 #endif