1380 struct task_struct {  struct
1392 	struct task_struct *last_wakee;  argument
1394 	int wake_cpu;
1396 	int on_rq;
1398 	int prio, static_prio, normal_prio;
1399 	unsigned int rt_priority;
1400 	const struct sched_class *sched_class;
1401 	struct sched_entity se;
1402 	struct sched_rt_entity rt;
1404 	struct task_group *sched_task_group;
1406 	struct sched_dl_entity dl;
1410 	struct hlist_head preempt_notifiers;
1414 	unsigned int btrace_seq;
1417 	unsigned int policy;
1418 	int nr_cpus_allowed;
1419 	cpumask_t cpus_allowed;
1422 	int rcu_read_lock_nesting;
1423 	union rcu_special rcu_read_unlock_special;
1424 	struct list_head rcu_node_entry;
1425 	struct rcu_node *rcu_blocked_node;
1428 	unsigned long rcu_tasks_nvcsw;
1429 	bool rcu_tasks_holdout;
1430 	struct list_head rcu_tasks_holdout_list;
1431 	int rcu_tasks_idle_cpu;
1435 	struct sched_info sched_info;
1438 	struct list_head tasks;
1440 	struct plist_node pushable_tasks;
1441 	struct rb_node pushable_dl_tasks;
1444 	struct mm_struct *mm, *active_mm;
1446 	u32 vmacache_seqnum;
1447 	struct vm_area_struct *vmacache[VMACACHE_SIZE];
1449 	struct task_rss_stat	rss_stat;
1452 	int exit_state;
1453 	int exit_code, exit_signal;
1454 	int pdeath_signal;  /*  The signal sent when the parent dies  */
1455 	unsigned long jobctl;	/* JOBCTL_*, siglock protected */
1458 	unsigned int personality;
1461 	unsigned sched_reset_on_fork:1;
1462 	unsigned sched_contributes_to_load:1;
1463 	unsigned sched_migrated:1;
1467 	unsigned in_execve:1; /* bit to tell LSMs we're in execve */
1468 	unsigned in_iowait:1;
1470 	unsigned memcg_may_oom:1;
1495 	struct task_struct __rcu *real_parent; /* real parent process */  argument
1496 	struct task_struct __rcu *parent; /* recipient of SIGCHLD, wait4() reports */  argument
1502 	struct task_struct *group_leader;	/* threadgroup leader */  argument
1509 	struct list_head ptraced;
1510 	struct list_head ptrace_entry;
1513 	struct pid_link pids[PIDTYPE_MAX];
1514 	struct list_head thread_group;
1515 	struct list_head thread_node;
1517 	struct completion *vfork_done;		/* for vfork() */
1518 	int __user *set_child_tid;		/* CLONE_CHILD_SETTID */
1519 	int __user *clear_child_tid;		/* CLONE_CHILD_CLEARTID */
1521 	cputime_t utime, stime, utimescaled, stimescaled;
1522 	cputime_t gtime;
1523 	struct prev_cputime prev_cputime;
1525 	seqlock_t vtime_seqlock;
1526 	unsigned long long vtime_snap;
1527 	enum {
1531 	} vtime_snap_whence;
1533 	unsigned long nvcsw, nivcsw; /* context switch counts */
1534 	u64 start_time;		/* monotonic time in nsec */
1535 	u64 real_start_time;	/* boot based time in nsec */
1537 	unsigned long min_flt, maj_flt;
1539 	struct task_cputime cputime_expires;
1540 	struct list_head cpu_timers[3];
1543 	const struct cred __rcu *real_cred; /* objective and real subjective task
1545 	const struct cred __rcu *cred;	/* effective (overridable) subjective task
1547 	char comm[TASK_COMM_LEN]; /* executable name excluding path
1552 	struct nameidata *nameidata;
1555 	struct sysv_sem sysvsem;
1556 	struct sysv_shm sysvshm;
1560 	unsigned long last_switch_count;
1563 	struct fs_struct *fs;
1565 	struct files_struct *files;
1567 	struct nsproxy *nsproxy;
1569 	struct signal_struct *signal;
1570 	struct sighand_struct *sighand;
1572 	sigset_t blocked, real_blocked;
1573 	sigset_t saved_sigmask;	/* restored if set_restore_sigmask() was used */
1574 	struct sigpending pending;
1576 	unsigned long sas_ss_sp;
1577 	size_t sas_ss_size;
1579 	struct callback_head *task_works;
1581 	struct audit_context *audit_context;
1583 	kuid_t loginuid;
1584 	unsigned int sessionid;
1586 	struct seccomp seccomp;
1589    	u32 parent_exec_id;
1590    	u32 self_exec_id;
1593 	spinlock_t alloc_lock;
1596 	raw_spinlock_t pi_lock;
1598 	struct wake_q_node wake_q;
1602 	struct rb_root pi_waiters;
1603 	struct rb_node *pi_waiters_leftmost;
1605 	struct rt_mutex_waiter *pi_blocked_on;
1610 	struct mutex_waiter *blocked_on;
1613 	unsigned int irq_events;
1614 	unsigned long hardirq_enable_ip;
1615 	unsigned long hardirq_disable_ip;
1616 	unsigned int hardirq_enable_event;
1617 	unsigned int hardirq_disable_event;
1618 	int hardirqs_enabled;
1619 	int hardirq_context;
1620 	unsigned long softirq_disable_ip;
1621 	unsigned long softirq_enable_ip;
1622 	unsigned int softirq_disable_event;
1623 	unsigned int softirq_enable_event;
1624 	int softirqs_enabled;
1625 	int softirq_context;
1629 	u64 curr_chain_key;
1630 	int lockdep_depth;
1631 	unsigned int lockdep_recursion;
1632 	struct held_lock held_locks[MAX_LOCK_DEPTH];
1633 	gfp_t lockdep_reclaim_gfp;
1637 	void *journal_info;
1640 	struct bio_list *bio_list;
1644 	struct blk_plug *plug;
1648 	struct reclaim_state *reclaim_state;
1650 	struct backing_dev_info *backing_dev_info;
1652 	struct io_context *io_context;
1654 	unsigned long ptrace_message;
1655 	siginfo_t *last_siginfo; /* For ptrace use.  */
1656 	struct task_io_accounting ioac;
1658 	u64 acct_rss_mem1;	/* accumulated rss usage */
1659 	u64 acct_vm_mem1;	/* accumulated virtual memory usage */
1660 	cputime_t acct_timexpd;	/* stime + utime since last update */
1663 	nodemask_t mems_allowed;	/* Protected by alloc_lock */
1664 	seqcount_t mems_allowed_seq;	/* Seqence no to catch updates */
1665 	int cpuset_mem_spread_rotor;
1666 	int cpuset_slab_spread_rotor;
1670 	struct css_set __rcu *cgroups;
1672 	struct list_head cg_list;
1675 	struct robust_list_head __user *robust_list;
1677 	struct compat_robust_list_head __user *compat_robust_list;
1679 	struct list_head pi_state_list;
1680 	struct futex_pi_state *pi_state_cache;
1683 	struct perf_event_context *perf_event_ctxp[perf_nr_task_contexts];
1684 	struct mutex perf_event_mutex;
1685 	struct list_head perf_event_list;
1688 	unsigned long preempt_disable_ip;
1691 	struct mempolicy *mempolicy;	/* Protected by alloc_lock */
1692 	short il_next;
1693 	short pref_node_fork;
1696 	int numa_scan_seq;
1697 	unsigned int numa_scan_period;
1698 	unsigned int numa_scan_period_max;
1699 	int numa_preferred_nid;
1700 	unsigned long numa_migrate_retry;
1701 	u64 node_stamp;			/* migration stamp  */
1702 	u64 last_task_numa_placement;
1703 	u64 last_sum_exec_runtime;
1704 	struct callback_head numa_work;
1706 	struct list_head numa_entry;
1707 	struct numa_group *numa_group;
1723 	unsigned long *numa_faults;
1724 	unsigned long total_numa_faults;
1732 	unsigned long numa_faults_locality[3];
1734 	unsigned long numa_pages_migrated;
1738 	struct tlbflush_unmap_batch tlb_ubc;
1741 	struct rcu_head rcu;
1746 	struct pipe_inode_info *splice_pipe;
1748 	struct page_frag task_frag;
1751 	struct task_delay_info *delays;
1754 	int make_it_fail;
1760 	int nr_dirtied;
1761 	int nr_dirtied_pause;
1762 	unsigned long dirty_paused_when; /* start of a write-and-pause period */
1765 	int latency_record_count;
1766 	struct latency_record latency_record[LT_SAVECOUNT];
1772 	unsigned long timer_slack_ns;
1773 	unsigned long default_timer_slack_ns;
1776 	unsigned int kasan_depth;
1780 	int curr_ret_stack;
1782 	struct ftrace_ret_stack	*ret_stack;
1784 	unsigned long long ftrace_timestamp;
1789 	atomic_t trace_overrun;
1791 	atomic_t tracing_graph_pause;
1795 	unsigned long trace;
1797 	unsigned long trace_recursion;
1822  * structure.  It *MUST* be at the end of 'task_struct'.  argument