text: #ifndef _LINUX__INIT_TASK_H
  #define _LINUX__INIT_TASK_H
  
  #include <linux/rcupdate.h>
  #include <linux/irqflags.h>
  #include <linux/utsname.h>
  #include <linux/lockdep.h>
  #include <linux/ftrace.h>
  #include <linux/ipc.h>
  #include <linux/pid_namespace.h>
  #include <linux/user_namespace.h>
  #include <linux/securebits.h>
  #include <linux/seqlock.h>
  #include <net/net_namespace.h>
  #include <linux/sched/rt.h>
  
  #ifdef CONFIG_SMP
  # define INIT_PUSHABLE_TASKS(tsk)					\
  	.pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO),
  #else
  # define INIT_PUSHABLE_TASKS(tsk)
  #endif
  
  extern struct files_struct init_files;
  extern struct fs_struct init_fs;
  
  #ifdef CONFIG_CGROUPS
  #define INIT_GROUP_RWSEM(sig)						\
  	.group_rwsem = __RWSEM_INITIALIZER(sig.group_rwsem),
  #else
  #define INIT_GROUP_RWSEM(sig)
  #endif
  
  #ifdef CONFIG_CPUSETS
  #define INIT_CPUSET_SEQ(tsk)							\
  	.mems_allowed_seq = SEQCNT_ZERO(tsk.mems_allowed_seq),
  #else
  #define INIT_CPUSET_SEQ(tsk)
  #endif
  
  #define INIT_SIGNALS(sig) {						\
  	.nr_threads	= 1,						\
  	.thread_head	= LIST_HEAD_INIT(init_task.thread_node),	\
  	.wait_chldexit	= __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
  	.shared_pending	= { 						\
  		.list = LIST_HEAD_INIT(sig.shared_pending.list),	\
  		.signal =  {{0}}},					\
  	.posix_timers	 = LIST_HEAD_INIT(sig.posix_timers),		\
  	.cpu_timers	= INIT_CPU_TIMERS(sig.cpu_timers),		\
  	.rlim		= INIT_RLIMITS,					\
  	.cputimer	= { 						\
  		.cputime = INIT_CPUTIME,				\
  		.running = 0,						\
  		.lock = __RAW_SPIN_LOCK_UNLOCKED(sig.cputimer.lock),	\
  	},								\
  	.cred_guard_mutex =						\
  		 __MUTEX_INITIALIZER(sig.cred_guard_mutex),		\
  	INIT_GROUP_RWSEM(sig)						\
  }
  
  extern struct nsproxy init_nsproxy;
  
  #define INIT_SIGHAND(sighand) {						\
  	.count		= ATOMIC_INIT(1), 				\
  	.action		= { { { .sa_handler = SIG_DFL, } }, },		\
  	.siglock	= __SPIN_LOCK_UNLOCKED(sighand.siglock),	\
  	.signalfd_wqh	= __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh),	\
  }
  
  extern struct group_info init_groups;
  
  #define INIT_STRUCT_PID {						\
  	.count 		= ATOMIC_INIT(1),				\
  	.tasks		= {						\
  		{ .first = NULL },					\
  		{ .first = NULL },					\
  		{ .first = NULL },					\
  	},								\
  	.level		= 0,						\
  	.numbers	= { {						\
  		.nr		= 0,					\
  		.ns		= &init_pid_ns,				\
  		.pid_chain	= { .next = NULL, .pprev = NULL },	\
  	}, }								\
  }
  
  #define INIT_PID_LINK(type) 					\
  {								\
  	.node = {						\
  		.next = NULL,					\
  		.pprev = NULL,					\
  	},							\
  	.pid = &init_struct_pid,				\
  }
  
  #ifdef CONFIG_AUDITSYSCALL
  #define INIT_IDS \
  	.loginuid = INVALID_UID, \
  	.sessionid = -1,
  #else
  #define INIT_IDS
  #endif
  
  #ifdef CONFIG_RCU_BOOST
  #define INIT_TASK_RCU_BOOST()						\
  	.rcu_boost_mutex = NULL,
  #else
  #define INIT_TASK_RCU_BOOST()
  #endif
  #ifdef CONFIG_TREE_PREEMPT_RCU
  #define INIT_TASK_RCU_TREE_PREEMPT()					\
  	.rcu_blocked_node = NULL,
  #else
  #define INIT_TASK_RCU_TREE_PREEMPT(tsk)
  #endif
  #ifdef CONFIG_PREEMPT_RCU
  #define INIT_TASK_RCU_PREEMPT(tsk)					\
  	.rcu_read_lock_nesting = 0,					\
  	.rcu_read_unlock_special = 0,					\
  	.rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry),		\
  	INIT_TASK_RCU_TREE_PREEMPT()					\
  	INIT_TASK_RCU_BOOST()
  #else
  #define INIT_TASK_RCU_PREEMPT(tsk)
  #endif
  
  extern struct cred init_cred;
  
  extern struct task_group root_task_group;
  
  #ifdef CONFIG_CGROUP_SCHED
  # define INIT_CGROUP_SCHED(tsk)						\
  	.sched_task_group = &root_task_group,
  #else
  # define INIT_CGROUP_SCHED(tsk)
  #endif
  
  #ifdef CONFIG_PERF_EVENTS
  # define INIT_PERF_EVENTS(tsk)						\
  	.perf_event_mutex = 						\
  		 __MUTEX_INITIALIZER(tsk.perf_event_mutex),		\
  	.perf_event_list = LIST_HEAD_INIT(tsk.perf_event_list),
  #else
  # define INIT_PERF_EVENTS(tsk)
  #endif
  
  #ifdef CONFIG_VIRT_CPU_ACCOUNTING_GEN
  # define INIT_VTIME(tsk)						\
  	.vtime_seqlock = __SEQLOCK_UNLOCKED(tsk.vtime_seqlock),	\
  	.vtime_snap = 0,				\
  	.vtime_snap_whence = VTIME_SYS,
  #else
  # define INIT_VTIME(tsk)
  #endif
  
  #define INIT_TASK_COMM "swapper"
  
  /*
   *  INIT_TASK is used to set up the first task table, touch at
   * your own risk!. Base=0, limit=0x1fffff (=2MB)
   */
  #define INIT_TASK(tsk)	\
  {									\
  	.state		= 0,						\
  	.stack		= &init_thread_info,				\
  	.usage		= ATOMIC_INIT(2),				\
  	.flags		= PF_KTHREAD,					\
  	.prio		= MAX_PRIO-20,					\
  	.static_prio	= MAX_PRIO-20,					\
  	.normal_prio	= MAX_PRIO-20,					\
  	.policy		= SCHED_NORMAL,					\
  	.cpus_allowed	= CPU_MASK_ALL,					\
  	.nr_cpus_allowed= NR_CPUS,					\
  	.mm		= NULL,						\
  	.active_mm	= &init_mm,					\
  	.se		= {						\
  		.group_node 	= LIST_HEAD_INIT(tsk.se.group_node),	\
  	},								\
  	.rt		= {						\
  		.run_list	= LIST_HEAD_INIT(tsk.rt.run_list),	\
  		.time_slice	= RR_TIMESLICE,				\
  	},								\
  	.tasks		= LIST_HEAD_INIT(tsk.tasks),			\
  	INIT_PUSHABLE_TASKS(tsk)					\
  	INIT_CGROUP_SCHED(tsk)						\
  	.ptraced	= LIST_HEAD_INIT(tsk.ptraced),			\
  	.ptrace_entry	= LIST_HEAD_INIT(tsk.ptrace_entry),		\
  	.real_parent	= &tsk,						\
  	.parent		= &tsk,						\
  	.children	= LIST_HEAD_INIT(tsk.children),			\
  	.sibling	= LIST_HEAD_INIT(tsk.sibling),			\
  	.group_leader	= &tsk,						\
  	RCU_POINTER_INITIALIZER(real_cred, &init_cred),			\
  	RCU_POINTER_INITIALIZER(cred, &init_cred),			\
  	.comm		= INIT_TASK_COMM,				\
  	.thread		= INIT_THREAD,					\
  	.fs		= &init_fs,					\
  	.files		= &init_files,					\
  	.signal		= &init_signals,				\
  	.sighand	= &init_sighand,				\
  	.nsproxy	= &init_nsproxy,				\
  	.pending	= {						\
  		.list = LIST_HEAD_INIT(tsk.pending.list),		\
  		.signal = {{0}}},					\
  	.blocked	= {{0}},					\
  	.alloc_lock	= __SPIN_LOCK_UNLOCKED(tsk.alloc_lock),		\
  	.journal_info	= NULL,						\
  	.cpu_timers	= INIT_CPU_TIMERS(tsk.cpu_timers),		\
  	.pi_lock	= __RAW_SPIN_LOCK_UNLOCKED(tsk.pi_lock),	\
  	.timer_slack_ns = 50000, /* 50 usec default slack */		\
  	.pids = {							\
  		[PIDTYPE_PID]  = INIT_PID_LINK(PIDTYPE_PID),		\
  		[PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID),		\
  		[PIDTYPE_SID]  = INIT_PID_LINK(PIDTYPE_SID),		\
  	},								\
  	.thread_group	= LIST_HEAD_INIT(tsk.thread_group),		\
  	.thread_node	= LIST_HEAD_INIT(init_signals.thread_head),	\
  	INIT_IDS							\
  	INIT_PERF_EVENTS(tsk)						\
  	INIT_TRACE_IRQFLAGS						\
  	INIT_LOCKDEP							\
  	INIT_FTRACE_GRAPH						\
  	INIT_TRACE_RECURSION						\
  	INIT_TASK_RCU_PREEMPT(tsk)					\
  	INIT_CPUSET_SEQ(tsk)						\
  	INIT_VTIME(tsk)							\
  }
  
  
  #define INIT_CPU_TIMERS(cpu_timers)					\
  {									\
  	LIST_HEAD_INIT(cpu_timers[0]),					\
  	LIST_HEAD_INIT(cpu_timers[1]),					\
  	LIST_HEAD_INIT(cpu_timers[2]),					\
  }
  
  /* Attach to the init_task data structure for proper alignment */
  #define __init_task_data __attribute__((__section__(".data..init_task")))
  
  
  #endif
  