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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280// SPDX-License-Identifier: GPL-2.0#include <linux/init_task.h>#include <linux/export.h>#include <linux/mqueue.h>#include <linux/sched.h>#include <linux/sched/sysctl.h>#include <linux/sched/rt.h>#include <linux/sched/task.h>#include <linux/sched/ext.h>#include <linux/sched/exec_state.h>#include <linux/user_namespace.h>#include <linux/init.h>#include <linux/fs.h>#include <linux/mm.h>#include <linux/audit.h>#include <linux/numa.h>#include <linux/scs.h>#include <linux/plist.h>
#include <linux/uaccess.h>
static struct signal_struct init_signals = { .nr_threads = 1, .thread_head = LIST_HEAD_INIT(init_task.thread_node), .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(init_signals.wait_chldexit), .shared_pending = { .list = LIST_HEAD_INIT(init_signals.shared_pending.list), .signal = {{0}} }, .multiprocess = HLIST_HEAD_INIT, .rlim = INIT_RLIMITS,#ifdef CONFIG_CGROUPS .cgroup_threadgroup_rwsem = __RWSEM_INITIALIZER(init_signals.cgroup_threadgroup_rwsem),#endif .cred_guard_mutex = __MUTEX_INITIALIZER(init_signals.cred_guard_mutex), .exec_update_lock = __RWSEM_INITIALIZER(init_signals.exec_update_lock),#ifdef CONFIG_POSIX_TIMERS .posix_timers = HLIST_HEAD_INIT, .ignored_posix_timers = HLIST_HEAD_INIT, .cputimer = { .cputime_atomic = INIT_CPUTIME_ATOMIC, },#endif INIT_CPU_TIMERS(init_signals) .pids = { [PIDTYPE_PID] = &init_struct_pid, [PIDTYPE_TGID] = &init_struct_pid, [PIDTYPE_PGID] = &init_struct_pid, [PIDTYPE_SID] = &init_struct_pid, }, INIT_PREV_CPUTIME(init_signals)};
static struct sighand_struct init_sighand = { .count = REFCOUNT_INIT(1), .action = { { { .sa_handler = SIG_DFL, } }, }, .siglock = __SPIN_LOCK_UNLOCKED(init_sighand.siglock), .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(init_sighand.signalfd_wqh),};
/* init to 2 - one for init_task, one to ensure it is never freed */struct task_exec_state init_task_exec_state = { .count = REFCOUNT_INIT(2), .dumpable = TASK_DUMPABLE_OWNER, .user_ns = &init_user_ns,};
#ifdef CONFIG_SHADOW_CALL_STACKunsigned long init_shadow_call_stack[SCS_SIZE / sizeof(long)] = { [(SCS_SIZE / sizeof(long)) - 1] = SCS_END_MAGIC};#endif
/* init to 2 - one for init_task, one to ensure it is never freed */static struct group_info init_groups = { .usage = REFCOUNT_INIT(2) };
/* * The initial credentials for the initial task */static struct cred init_cred = { .usage = ATOMIC_INIT(4), .uid = GLOBAL_ROOT_UID, .gid = GLOBAL_ROOT_GID, .suid = GLOBAL_ROOT_UID, .sgid = GLOBAL_ROOT_GID, .euid = GLOBAL_ROOT_UID, .egid = GLOBAL_ROOT_GID, .fsuid = GLOBAL_ROOT_UID, .fsgid = GLOBAL_ROOT_GID, .securebits = SECUREBITS_DEFAULT, .cap_inheritable = CAP_EMPTY_SET, .cap_permitted = CAP_FULL_SET, .cap_effective = CAP_FULL_SET, .cap_bset = CAP_FULL_SET, .user = INIT_USER, .user_ns = &init_user_ns, .group_info = &init_groups, .ucounts = &init_ucounts,};
/* * Set up the first task table, touch at your own risk!. Base=0, * limit=0x1fffff (=2MB) */struct task_struct init_task __aligned(L1_CACHE_BYTES) = {#ifdef CONFIG_THREAD_INFO_IN_TASK .thread_info = INIT_THREAD_INFO(init_task), .stack_refcount = REFCOUNT_INIT(1),#endif .__state = 0, .stack = init_stack, .usage = REFCOUNT_INIT(2), .flags = PF_KTHREAD, .prio = MAX_PRIO - 20, .static_prio = MAX_PRIO - 20, .normal_prio = MAX_PRIO - 20, .policy = SCHED_NORMAL, .cpus_ptr = &init_task.cpus_mask, .user_cpus_ptr = NULL, .cpus_mask = CPU_MASK_ALL, .max_allowed_capacity = SCHED_CAPACITY_SCALE, .nr_cpus_allowed= NR_CPUS, .mm = NULL, .active_mm = &init_mm, .exec_state = &init_task_exec_state, .restart_block = { .fn = do_no_restart_syscall, }, .se = { .group_node = LIST_HEAD_INIT(init_task.se.group_node), }, .rt = { .run_list = LIST_HEAD_INIT(init_task.rt.run_list), .time_slice = RR_TIMESLICE, }, .tasks = LIST_HEAD_INIT(init_task.tasks),#ifdef CONFIG_SMP .pushable_tasks = PLIST_NODE_INIT(init_task.pushable_tasks, MAX_PRIO),#endif#ifdef CONFIG_CGROUP_SCHED .sched_task_group = &root_task_group,#endif#ifdef CONFIG_SCHED_CLASS_EXT .scx = { .dsq_list.node = LIST_HEAD_INIT(init_task.scx.dsq_list.node), .sticky_cpu = -1, .holding_cpu = -1, .runnable_cpu = -1, .runnable_node = LIST_HEAD_INIT(init_task.scx.runnable_node), .runnable_at = INITIAL_JIFFIES, .ddsp_dsq_id = SCX_DSQ_INVALID, .slice = SCX_SLICE_DFL, },#endif .ptraced = LIST_HEAD_INIT(init_task.ptraced), .ptrace_entry = LIST_HEAD_INIT(init_task.ptrace_entry), .real_parent = &init_task, .parent = &init_task, .children = LIST_HEAD_INIT(init_task.children), .sibling = LIST_HEAD_INIT(init_task.sibling), .group_leader = &init_task, RCU_POINTER_INITIALIZER(real_cred, &init_cred), .cred = &init_cred, .comm = INIT_TASK_COMM, .thread = INIT_THREAD, .real_fs = &init_fs, .fs = &init_fs, .files = &init_files,#ifdef CONFIG_IO_URING .io_uring = NULL,#endif .signal = &init_signals, .sighand = &init_sighand, .nsproxy = &init_nsproxy, .pending = { .list = LIST_HEAD_INIT(init_task.pending.list), .signal = {{0}} }, .blocked = {{0}}, .alloc_lock = __SPIN_LOCK_UNLOCKED(init_task.alloc_lock), .journal_info = NULL, INIT_CPU_TIMERS(init_task) .pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock), .blocked_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.blocked_lock), .timer_slack_ns = 50000, /* 50 usec default slack */ .thread_pid = &init_struct_pid, .thread_node = LIST_HEAD_INIT(init_signals.thread_head),#ifdef CONFIG_AUDIT .loginuid = INVALID_UID, .sessionid = AUDIT_SID_UNSET,#endif#ifdef CONFIG_PERF_EVENTS .perf_event_mutex = __MUTEX_INITIALIZER(init_task.perf_event_mutex), .perf_event_list = LIST_HEAD_INIT(init_task.perf_event_list),#endif#ifdef CONFIG_PREEMPT_RCU .rcu_read_lock_nesting = 0, .rcu_read_unlock_special.s = 0, .rcu_node_entry = LIST_HEAD_INIT(init_task.rcu_node_entry), .rcu_blocked_node = NULL,#endif#ifdef CONFIG_TASKS_RCU .rcu_tasks_holdout = false, .rcu_tasks_holdout_list = LIST_HEAD_INIT(init_task.rcu_tasks_holdout_list), .rcu_tasks_idle_cpu = -1, .rcu_tasks_exit_list = LIST_HEAD_INIT(init_task.rcu_tasks_exit_list),#endif#ifdef CONFIG_TASKS_TRACE_RCU .trc_reader_nesting = 0,#endif#ifdef CONFIG_CPUSETS .mems_allowed_seq = SEQCNT_SPINLOCK_ZERO(init_task.mems_allowed_seq, &init_task.alloc_lock),#endif .blocked_donor = NULL,#ifdef CONFIG_RT_MUTEXES .pi_waiters = RB_ROOT_CACHED, .pi_top_task = NULL,#endif INIT_PREV_CPUTIME(init_task)#ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN .vtime.seqcount = SEQCNT_ZERO(init_task.vtime_seqcount), .vtime.starttime = 0, .vtime.state = VTIME_SYS,#endif#ifdef CONFIG_NUMA_BALANCING .numa_preferred_nid = NUMA_NO_NODE, .numa_group = NULL, .numa_faults = NULL,#endif#ifdef CONFIG_SCHED_CACHE .preferred_llc = -1, .pref_llc_queued = 0,#endif#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) .kasan_depth = 1,#endif#ifdef CONFIG_KCSAN .kcsan_ctx = { .scoped_accesses = {LIST_POISON1, NULL}, },#endif#ifdef CONFIG_TRACE_IRQFLAGS .softirqs_enabled = 1,#endif#ifdef CONFIG_LOCKDEP .lockdep_depth = 0, /* no locks held yet */ .curr_chain_key = INITIAL_CHAIN_KEY, .lockdep_recursion = 0,#endif#ifdef CONFIG_FUNCTION_GRAPH_TRACER .ret_stack = NULL, .tracing_graph_pause = ATOMIC_INIT(0),#endif#if defined(CONFIG_TRACING) && defined(CONFIG_PREEMPTION) .trace_recursion = 0,#endif#ifdef CONFIG_LIVEPATCH .patch_state = KLP_TRANSITION_IDLE,#endif#ifdef CONFIG_SECURITY .security = NULL,#endif#ifdef CONFIG_SECCOMP_FILTER .seccomp = { .filter_count = ATOMIC_INIT(0) },#endif#ifdef CONFIG_SCHED_MM_CID .mm_cid = { .cid = MM_CID_UNSET, },#endif};EXPORT_SYMBOL(init_task);
/* * Initial thread structure. Alignment of this is handled by a special * linker map entry. */#ifndef CONFIG_THREAD_INFO_IN_TASKstruct thread_info init_thread_info __init_thread_info = INIT_THREAD_INFO(init_task);#endif