projects / mirror_ubuntu-jammy-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
| a4a2eb49 TG |
2 | #include <linux/init_task.h> |
| 3 | #include <linux/export.h> | |
| 4 | #include <linux/mqueue.h> | |
| 5 | #include <linux/sched.h> | |
| cf4aebc2 | 6 | #include <linux/sched/sysctl.h> |
| 8bd75c77 | 7 | #include <linux/sched/rt.h> |
| 9164bb4a | 8 | #include <linux/sched/task.h> |
| a4a2eb49 TG |
9 | #include <linux/init.h> |
| 10 | #include <linux/fs.h> | |
| 11 | #include <linux/mm.h> | |
| 12 | ||
| 13 | #include <asm/pgtable.h> | |
| 7c0f6ba6 | 14 | #include <linux/uaccess.h> |
| a4a2eb49 TG |
15 | |
| 16 | static struct signal_struct init_signals = INIT_SIGNALS(init_signals); | |
| 17 | static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); | |
| 18 | ||
| d11ed3ab DH |
19 | |
| 20 | /* | |
| 21 | * Set up the first task table, touch at your own risk!. Base=0, | |
| 22 | * limit=0x1fffff (=2MB) | |
| 23 | */ | |
| 0500871f DH |
24 | struct task_struct init_task |
| 25 | #ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK | |
| 26 | __init_task_data | |
| 27 | #endif | |
| d11ed3ab DH |
28 | = { |
| 29 | INIT_TASK_TI(init_task) | |
| 30 | .state = 0, | |
| 31 | .stack = init_stack, | |
| 32 | .usage = ATOMIC_INIT(2), | |
| 33 | .flags = PF_KTHREAD, | |
| 34 | .prio = MAX_PRIO-20, | |
| 35 | .static_prio = MAX_PRIO-20, | |
| 36 | .normal_prio = MAX_PRIO-20, | |
| 37 | .policy = SCHED_NORMAL, | |
| 38 | .cpus_allowed = CPU_MASK_ALL, | |
| 39 | .nr_cpus_allowed= NR_CPUS, | |
| 40 | .mm = NULL, | |
| 41 | .active_mm = &init_mm, | |
| 42 | .restart_block = { | |
| 43 | .fn = do_no_restart_syscall, | |
| 44 | }, | |
| 45 | .se = { | |
| 46 | .group_node = LIST_HEAD_INIT(init_task.se.group_node), | |
| 47 | }, | |
| 48 | .rt = { | |
| 49 | .run_list = LIST_HEAD_INIT(init_task.rt.run_list), | |
| 50 | .time_slice = RR_TIMESLICE, | |
| 51 | }, | |
| 52 | .tasks = LIST_HEAD_INIT(init_task.tasks), | |
| 53 | INIT_PUSHABLE_TASKS(init_task) | |
| 54 | INIT_CGROUP_SCHED(init_task) | |
| 55 | .ptraced = LIST_HEAD_INIT(init_task.ptraced), | |
| 56 | .ptrace_entry = LIST_HEAD_INIT(init_task.ptrace_entry), | |
| 57 | .real_parent = &init_task, | |
| 58 | .parent = &init_task, | |
| 59 | .children = LIST_HEAD_INIT(init_task.children), | |
| 60 | .sibling = LIST_HEAD_INIT(init_task.sibling), | |
| 61 | .group_leader = &init_task, | |
| 62 | RCU_POINTER_INITIALIZER(real_cred, &init_cred), | |
| 63 | RCU_POINTER_INITIALIZER(cred, &init_cred), | |
| 64 | .comm = INIT_TASK_COMM, | |
| 65 | .thread = INIT_THREAD, | |
| 66 | .fs = &init_fs, | |
| 67 | .files = &init_files, | |
| 68 | .signal = &init_signals, | |
| 69 | .sighand = &init_sighand, | |
| 70 | .nsproxy = &init_nsproxy, | |
| 71 | .pending = { | |
| 72 | .list = LIST_HEAD_INIT(init_task.pending.list), | |
| 73 | .signal = {{0}} | |
| 74 | }, | |
| 75 | .blocked = {{0}}, | |
| 76 | .alloc_lock = __SPIN_LOCK_UNLOCKED(init_task.alloc_lock), | |
| 77 | .journal_info = NULL, | |
| 78 | INIT_CPU_TIMERS(init_task) | |
| 79 | .pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock), | |
| 80 | .timer_slack_ns = 50000, /* 50 usec default slack */ | |
| 81 | .pids = { | |
| 82 | [PIDTYPE_PID] = INIT_PID_LINK(PIDTYPE_PID), | |
| 83 | [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), | |
| 84 | [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), | |
| 85 | }, | |
| 86 | .thread_group = LIST_HEAD_INIT(init_task.thread_group), | |
| 87 | .thread_node = LIST_HEAD_INIT(init_signals.thread_head), | |
| 88 | INIT_IDS | |
| 89 | INIT_PERF_EVENTS(init_task) | |
| 90 | INIT_TRACE_IRQFLAGS | |
| 91 | INIT_LOCKDEP | |
| 92 | INIT_FTRACE_GRAPH | |
| 93 | INIT_TRACE_RECURSION | |
| 94 | INIT_TASK_RCU_PREEMPT(init_task) | |
| 95 | INIT_TASK_RCU_TASKS(init_task) | |
| 96 | INIT_CPUSET_SEQ(init_task) | |
| 97 | INIT_RT_MUTEXES(init_task) | |
| 98 | INIT_PREV_CPUTIME(init_task) | |
| 99 | INIT_VTIME(init_task) | |
| 100 | INIT_NUMA_BALANCING(init_task) | |
| 101 | INIT_KASAN(init_task) | |
| 102 | INIT_LIVEPATCH(init_task) | |
| 103 | INIT_TASK_SECURITY | |
| 104 | }; | |
| 105 | ||
| a4a2eb49 TG |
106 | EXPORT_SYMBOL(init_task); |
| 107 | ||
| 108 | /* | |
| 109 | * Initial thread structure. Alignment of this is handled by a special | |
| 110 | * linker map entry. | |
| 111 | */ | |
| c65eacbe | 112 | #ifndef CONFIG_THREAD_INFO_IN_TASK |
| 0500871f | 113 | struct thread_info init_thread_info __init_thread_info = INIT_THREAD_INFO(init_task); |
| c65eacbe | 114 | #endif |