| #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/ipc.h> |
| #include <linux/pid_namespace.h> |
| #include <linux/user_namespace.h> |
| #include <linux/securebits.h> |
| #include <net/net_namespace.h> |
| |
| extern struct files_struct init_files; |
| extern struct fs_struct init_fs; |
| |
| #define INIT_KIOCTX(name, which_mm) \ |
| { \ |
| .users = ATOMIC_INIT(1), \ |
| .dead = 0, \ |
| .mm = &which_mm, \ |
| .user_id = 0, \ |
| .next = NULL, \ |
| .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \ |
| .ctx_lock = __SPIN_LOCK_UNLOCKED(name.ctx_lock), \ |
| .reqs_active = 0U, \ |
| .max_reqs = ~0U, \ |
| } |
| |
| #define INIT_MM(name) \ |
| { \ |
| .mm_rb = RB_ROOT, \ |
| .pgd = swapper_pg_dir, \ |
| .mm_users = ATOMIC_INIT(2), \ |
| .mm_count = ATOMIC_INIT(1), \ |
| .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \ |
| .page_table_lock = __SPIN_LOCK_UNLOCKED(name.page_table_lock), \ |
| .mmlist = LIST_HEAD_INIT(name.mmlist), \ |
| .cpu_vm_mask = CPU_MASK_ALL, \ |
| } |
| |
| #define INIT_SIGNALS(sig) { \ |
| .count = ATOMIC_INIT(1), \ |
| .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 = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \ |
| }, \ |
| } |
| |
| extern struct nsproxy init_nsproxy; |
| #define INIT_NSPROXY(nsproxy) { \ |
| .pid_ns = &init_pid_ns, \ |
| .count = ATOMIC_INIT(1), \ |
| .uts_ns = &init_uts_ns, \ |
| .mnt_ns = NULL, \ |
| INIT_NET_NS(net_ns) \ |
| INIT_IPC_NS(ipc_ns) \ |
| } |
| |
| #define INIT_SIGHAND(sighand) { \ |
| .count = ATOMIC_INIT(1), \ |
| .action = { { { .sa_handler = NULL, } }, }, \ |
| .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 = &init_task.pids[PIDTYPE_PID].node }, \ |
| { .first = &init_task.pids[PIDTYPE_PGID].node }, \ |
| { .first = &init_task.pids[PIDTYPE_SID].node }, \ |
| }, \ |
| .rcu = RCU_HEAD_INIT, \ |
| .level = 0, \ |
| .numbers = { { \ |
| .nr = 0, \ |
| .ns = &init_pid_ns, \ |
| .pid_chain = { .next = NULL, .pprev = NULL }, \ |
| }, } \ |
| } |
| |
| #define INIT_PID_LINK(type) \ |
| { \ |
| .node = { \ |
| .next = NULL, \ |
| .pprev = &init_struct_pid.tasks[type].first, \ |
| }, \ |
| .pid = &init_struct_pid, \ |
| } |
| |
| #ifdef CONFIG_AUDITSYSCALL |
| #define INIT_IDS \ |
| .loginuid = -1, \ |
| .sessionid = -1, |
| #else |
| #define INIT_IDS |
| #endif |
| |
| #ifdef CONFIG_SECURITY_FILE_CAPABILITIES |
| /* |
| * Because of the reduced scope of CAP_SETPCAP when filesystem |
| * capabilities are in effect, it is safe to allow CAP_SETPCAP to |
| * be available in the default configuration. |
| */ |
| # define CAP_INIT_BSET CAP_FULL_SET |
| #else |
| # define CAP_INIT_BSET CAP_INIT_EFF_SET |
| #endif |
| |
| extern struct cred init_cred; |
| |
| #ifdef CONFIG_PERF_COUNTERS |
| # define INIT_PERF_COUNTERS(tsk) \ |
| .perf_counter_ctx.counter_list = \ |
| LIST_HEAD_INIT(tsk.perf_counter_ctx.counter_list), \ |
| .perf_counter_ctx.event_list = \ |
| LIST_HEAD_INIT(tsk.perf_counter_ctx.event_list), \ |
| .perf_counter_ctx.lock = \ |
| __SPIN_LOCK_UNLOCKED(tsk.perf_counter_ctx.lock), |
| #else |
| # define INIT_PERF_COUNTERS(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) \ |
| { \ |
| .state = 0, \ |
| .stack = &init_thread_info, \ |
| .usage = ATOMIC_INIT(2), \ |
| .flags = PF_KTHREAD, \ |
| .lock_depth = -1, \ |
| .prio = MAX_PRIO-20, \ |
| .static_prio = MAX_PRIO-20, \ |
| .normal_prio = MAX_PRIO-20, \ |
| .policy = SCHED_NORMAL, \ |
| .cpus_allowed = CPU_MASK_ALL, \ |
| .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 = HZ, \ |
| .nr_cpus_allowed = NR_CPUS, \ |
| }, \ |
| .tasks = LIST_HEAD_INIT(tsk.tasks), \ |
| .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), \ |
| .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, \ |
| .real_cred = &init_cred, \ |
| .cred = &init_cred, \ |
| .cred_exec_mutex = \ |
| __MUTEX_INITIALIZER(tsk.cred_exec_mutex), \ |
| .comm = "swapper", \ |
| .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), \ |
| .fs_excl = ATOMIC_INIT(0), \ |
| .pi_lock = __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), \ |
| }, \ |
| .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ |
| INIT_IDS \ |
| INIT_TRACE_IRQFLAGS \ |
| INIT_LOCKDEP \ |
| INIT_PERF_COUNTERS(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]), \ |
| } |
| |
| |
| #endif |