[PATCH] IPC namespace core
[linux-2.6.git] / include / linux / init_task.h
1 #ifndef _LINUX__INIT_TASK_H
2 #define _LINUX__INIT_TASK_H
3
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>
9
10 #define INIT_FDTABLE \
11 {                                                       \
12         .max_fds        = NR_OPEN_DEFAULT,              \
13         .max_fdset      = EMBEDDED_FD_SET_SIZE,         \
14         .fd             = &init_files.fd_array[0],      \
15         .close_on_exec  = (fd_set *)&init_files.close_on_exec_init, \
16         .open_fds       = (fd_set *)&init_files.open_fds_init,  \
17         .rcu            = RCU_HEAD_INIT,                \
18         .free_files     = NULL,                         \
19         .next           = NULL,                         \
20 }
21
22 #define INIT_FILES \
23 {                                                       \
24         .count          = ATOMIC_INIT(1),               \
25         .fdt            = &init_files.fdtab,            \
26         .fdtab          = INIT_FDTABLE,                 \
27         .file_lock      = __SPIN_LOCK_UNLOCKED(init_task.file_lock), \
28         .next_fd        = 0,                            \
29         .close_on_exec_init = { { 0, } },               \
30         .open_fds_init  = { { 0, } },                   \
31         .fd_array       = { NULL, }                     \
32 }
33
34 #define INIT_KIOCTX(name, which_mm) \
35 {                                                       \
36         .users          = ATOMIC_INIT(1),               \
37         .dead           = 0,                            \
38         .mm             = &which_mm,                    \
39         .user_id        = 0,                            \
40         .next           = NULL,                         \
41         .wait           = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
42         .ctx_lock       = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \
43         .reqs_active    = 0U,                           \
44         .max_reqs       = ~0U,                          \
45 }
46
47 #define INIT_MM(name) \
48 {                                                               \
49         .mm_rb          = RB_ROOT,                              \
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,                         \
57 }
58
59 #define INIT_SIGNALS(sig) {     \
60         .count          = ATOMIC_INIT(1),               \
61         .wait_chldexit  = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
62         .shared_pending = {                             \
63                 .list = LIST_HEAD_INIT(sig.shared_pending.list),        \
64                 .signal =  {{0}}}, \
65         .posix_timers    = LIST_HEAD_INIT(sig.posix_timers),            \
66         .cpu_timers     = INIT_CPU_TIMERS(sig.cpu_timers),              \
67         .rlim           = INIT_RLIMITS,                                 \
68         .pgrp           = 1,                                            \
69         .session        = 1,                                            \
70 }
71
72 extern struct nsproxy init_nsproxy;
73 #define INIT_NSPROXY(nsproxy) {                                         \
74         .count          = ATOMIC_INIT(1),                               \
75         .nslock         = SPIN_LOCK_UNLOCKED,                           \
76         .uts_ns         = &init_uts_ns,                                 \
77         .ipc_ns         = &init_ipc_ns,                                 \
78         .namespace      = NULL,                                         \
79 }
80
81 #define INIT_SIGHAND(sighand) {                                         \
82         .count          = ATOMIC_INIT(1),                               \
83         .action         = { { { .sa_handler = NULL, } }, },             \
84         .siglock        = __SPIN_LOCK_UNLOCKED(sighand.siglock),        \
85 }
86
87 extern struct group_info init_groups;
88
89 /*
90  *  INIT_TASK is used to set up the first task table, touch at
91  * your own risk!. Base=0, limit=0x1fffff (=2MB)
92  */
93 #define INIT_TASK(tsk)  \
94 {                                                                       \
95         .state          = 0,                                            \
96         .thread_info    = &init_thread_info,                            \
97         .usage          = ATOMIC_INIT(2),                               \
98         .flags          = 0,                                            \
99         .lock_depth     = -1,                                           \
100         .prio           = MAX_PRIO-20,                                  \
101         .static_prio    = MAX_PRIO-20,                                  \
102         .normal_prio    = MAX_PRIO-20,                                  \
103         .policy         = SCHED_NORMAL,                                 \
104         .cpus_allowed   = CPU_MASK_ALL,                                 \
105         .mm             = NULL,                                         \
106         .active_mm      = &init_mm,                                     \
107         .run_list       = LIST_HEAD_INIT(tsk.run_list),                 \
108         .ioprio         = 0,                                            \
109         .time_slice     = HZ,                                           \
110         .tasks          = LIST_HEAD_INIT(tsk.tasks),                    \
111         .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children),          \
112         .ptrace_list    = LIST_HEAD_INIT(tsk.ptrace_list),              \
113         .real_parent    = &tsk,                                         \
114         .parent         = &tsk,                                         \
115         .children       = LIST_HEAD_INIT(tsk.children),                 \
116         .sibling        = LIST_HEAD_INIT(tsk.sibling),                  \
117         .group_leader   = &tsk,                                         \
118         .group_info     = &init_groups,                                 \
119         .cap_effective  = CAP_INIT_EFF_SET,                             \
120         .cap_inheritable = CAP_INIT_INH_SET,                            \
121         .cap_permitted  = CAP_FULL_SET,                                 \
122         .keep_capabilities = 0,                                         \
123         .user           = INIT_USER,                                    \
124         .comm           = "swapper",                                    \
125         .thread         = INIT_THREAD,                                  \
126         .fs             = &init_fs,                                     \
127         .files          = &init_files,                                  \
128         .signal         = &init_signals,                                \
129         .sighand        = &init_sighand,                                \
130         .nsproxy        = &init_nsproxy,                                \
131         .pending        = {                                             \
132                 .list = LIST_HEAD_INIT(tsk.pending.list),               \
133                 .signal = {{0}}},                                       \
134         .blocked        = {{0}},                                        \
135         .alloc_lock     = __SPIN_LOCK_UNLOCKED(tsk.alloc_lock),         \
136         .journal_info   = NULL,                                         \
137         .cpu_timers     = INIT_CPU_TIMERS(tsk.cpu_timers),              \
138         .fs_excl        = ATOMIC_INIT(0),                               \
139         .pi_lock        = SPIN_LOCK_UNLOCKED,                           \
140         INIT_TRACE_IRQFLAGS                                             \
141         INIT_LOCKDEP                                                    \
142 }
143
144
145 #define INIT_CPU_TIMERS(cpu_timers)                                     \
146 {                                                                       \
147         LIST_HEAD_INIT(cpu_timers[0]),                                  \
148         LIST_HEAD_INIT(cpu_timers[1]),                                  \
149         LIST_HEAD_INIT(cpu_timers[2]),                                  \
150 }
151
152
153 #endif