Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#ifndef _LINUX__INIT_TASK_H
2#define _LINUX__INIT_TASK_H
3
4#include <linux/file.h>
5
6#define INIT_FILES \
7{ \
8 .count = ATOMIC_INIT(1), \
9 .file_lock = SPIN_LOCK_UNLOCKED, \
10 .max_fds = NR_OPEN_DEFAULT, \
11 .max_fdset = __FD_SETSIZE, \
12 .next_fd = 0, \
13 .fd = &init_files.fd_array[0], \
14 .close_on_exec = &init_files.close_on_exec_init, \
15 .open_fds = &init_files.open_fds_init, \
16 .close_on_exec_init = { { 0, } }, \
17 .open_fds_init = { { 0, } }, \
18 .fd_array = { NULL, } \
19}
20
21#define INIT_KIOCTX(name, which_mm) \
22{ \
23 .users = ATOMIC_INIT(1), \
24 .dead = 0, \
25 .mm = &which_mm, \
26 .user_id = 0, \
27 .next = NULL, \
28 .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \
29 .ctx_lock = SPIN_LOCK_UNLOCKED, \
30 .reqs_active = 0U, \
31 .max_reqs = ~0U, \
32}
33
34#define INIT_MM(name) \
35{ \
36 .mm_rb = RB_ROOT, \
37 .pgd = swapper_pg_dir, \
38 .mm_users = ATOMIC_INIT(2), \
39 .mm_count = ATOMIC_INIT(1), \
40 .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \
41 .page_table_lock = SPIN_LOCK_UNLOCKED, \
42 .mmlist = LIST_HEAD_INIT(name.mmlist), \
43 .cpu_vm_mask = CPU_MASK_ALL, \
44 .default_kioctx = INIT_KIOCTX(name.default_kioctx, name), \
45}
46
47#define INIT_SIGNALS(sig) { \
48 .count = ATOMIC_INIT(1), \
49 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
50 .shared_pending = { \
51 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
52 .signal = {{0}}}, \
53 .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \
54 .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \
55 .rlim = INIT_RLIMITS, \
56}
57
58#define INIT_SIGHAND(sighand) { \
59 .count = ATOMIC_INIT(1), \
60 .action = { { { .sa_handler = NULL, } }, }, \
61 .siglock = SPIN_LOCK_UNLOCKED, \
62}
63
64extern struct group_info init_groups;
65
66/*
67 * INIT_TASK is used to set up the first task table, touch at
68 * your own risk!. Base=0, limit=0x1fffff (=2MB)
69 */
70#define INIT_TASK(tsk) \
71{ \
72 .state = 0, \
73 .thread_info = &init_thread_info, \
74 .usage = ATOMIC_INIT(2), \
75 .flags = 0, \
76 .lock_depth = -1, \
77 .prio = MAX_PRIO-20, \
78 .static_prio = MAX_PRIO-20, \
79 .policy = SCHED_NORMAL, \
80 .cpus_allowed = CPU_MASK_ALL, \
81 .mm = NULL, \
82 .active_mm = &init_mm, \
83 .run_list = LIST_HEAD_INIT(tsk.run_list), \
84 .time_slice = HZ, \
85 .tasks = LIST_HEAD_INIT(tsk.tasks), \
86 .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \
87 .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \
88 .real_parent = &tsk, \
89 .parent = &tsk, \
90 .children = LIST_HEAD_INIT(tsk.children), \
91 .sibling = LIST_HEAD_INIT(tsk.sibling), \
92 .group_leader = &tsk, \
93 .group_info = &init_groups, \
94 .cap_effective = CAP_INIT_EFF_SET, \
95 .cap_inheritable = CAP_INIT_INH_SET, \
96 .cap_permitted = CAP_FULL_SET, \
97 .keep_capabilities = 0, \
98 .user = INIT_USER, \
99 .comm = "swapper", \
100 .thread = INIT_THREAD, \
101 .fs = &init_fs, \
102 .files = &init_files, \
103 .signal = &init_signals, \
104 .sighand = &init_sighand, \
105 .pending = { \
106 .list = LIST_HEAD_INIT(tsk.pending.list), \
107 .signal = {{0}}}, \
108 .blocked = {{0}}, \
109 .alloc_lock = SPIN_LOCK_UNLOCKED, \
110 .proc_lock = SPIN_LOCK_UNLOCKED, \
111 .switch_lock = SPIN_LOCK_UNLOCKED, \
112 .journal_info = NULL, \
113 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \
114}
115
116
117#define INIT_CPU_TIMERS(cpu_timers) \
118{ \
119 LIST_HEAD_INIT(cpu_timers[0]), \
120 LIST_HEAD_INIT(cpu_timers[1]), \
121 LIST_HEAD_INIT(cpu_timers[2]), \
122}
123
124
125#endif