| #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 <linux/rbtree.h> |
| #include <net/net_namespace.h> |
| #include <linux/sched/rt.h> |
| |
| #include <asm/thread_info.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_CPUSETS |
| #define INIT_CPUSET_SEQ(tsk) \ |
| .mems_allowed_seq = SEQCNT_ZERO(tsk.mems_allowed_seq), |
| #else |
| #define INIT_CPUSET_SEQ(tsk) |
| #endif |
| |
| #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE |
| #define INIT_PREV_CPUTIME(x) .prev_cputime = { \ |
| .lock = __RAW_SPIN_LOCK_UNLOCKED(x.prev_cputime.lock), \ |
| }, |
| #else |
| #define INIT_PREV_CPUTIME(x) |
| #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_atomic = INIT_CPUTIME_ATOMIC, \ |
| .running = false, \ |
| .checking_timer = false, \ |
| }, \ |
| INIT_PREV_CPUTIME(sig) \ |
| .cred_guard_mutex = \ |
| __MUTEX_INITIALIZER(sig.cred_guard_mutex), \ |
| } |
| |
| 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 = (unsigned int)-1, |
| #else |
| #define INIT_IDS |
| #endif |
| |
| #ifdef CONFIG_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.s = 0, \ |
| .rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), \ |
| INIT_TASK_RCU_TREE_PREEMPT() |
| #else |
| #define INIT_TASK_RCU_PREEMPT(tsk) |
| #endif |
| #ifdef CONFIG_TASKS_RCU |
| #define INIT_TASK_RCU_TASKS(tsk) \ |
| .rcu_tasks_holdout = false, \ |
| .rcu_tasks_holdout_list = \ |
| LIST_HEAD_INIT(tsk.rcu_tasks_holdout_list), \ |
| .rcu_tasks_idle_cpu = -1, |
| #else |
| #define INIT_TASK_RCU_TASKS(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_seqcount = SEQCNT_ZERO(tsk.vtime_seqcount), \ |
| .vtime_snap = 0, \ |
| .vtime_snap_whence = VTIME_SYS, |
| #else |
| # define INIT_VTIME(tsk) |
| #endif |
| |
| #define INIT_TASK_COMM "swapper" |
| |
| #ifdef CONFIG_RT_MUTEXES |
| # define INIT_RT_MUTEXES(tsk) \ |
| .pi_waiters = RB_ROOT, \ |
| .pi_waiters_leftmost = NULL, |
| #else |
| # define INIT_RT_MUTEXES(tsk) |
| #endif |
| |
| #ifdef CONFIG_NUMA_BALANCING |
| # define INIT_NUMA_BALANCING(tsk) \ |
| .numa_preferred_nid = -1, \ |
| .numa_group = NULL, \ |
| .numa_faults = NULL, |
| #else |
| # define INIT_NUMA_BALANCING(tsk) |
| #endif |
| |
| #ifdef CONFIG_KASAN |
| # define INIT_KASAN(tsk) \ |
| .kasan_depth = 1, |
| #else |
| # define INIT_KASAN(tsk) |
| #endif |
| |
| #ifdef CONFIG_THREAD_INFO_IN_TASK |
| # define INIT_TASK_TI(tsk) \ |
| .thread_info = INIT_THREAD_INFO(tsk), \ |
| .stack_refcount = ATOMIC_INIT(1), |
| #else |
| # define INIT_TASK_TI(tsk) |
| #endif |
| |
| /* |
| * 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) \ |
| { \ |
| INIT_TASK_TI(tsk) \ |
| .state = 0, \ |
| .stack = init_stack, \ |
| .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, \ |
| .cpus_requested = CPU_MASK_ALL, \ |
| .mm = NULL, \ |
| .active_mm = &init_mm, \ |
| .restart_block = { \ |
| .fn = do_no_restart_syscall, \ |
| }, \ |
| .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_TASK_RCU_TASKS(tsk) \ |
| INIT_CPUSET_SEQ(tsk) \ |
| INIT_RT_MUTEXES(tsk) \ |
| INIT_PREV_CPUTIME(tsk) \ |
| INIT_VTIME(tsk) \ |
| INIT_NUMA_BALANCING(tsk) \ |
| INIT_KASAN(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 |