1 #ifndef _LINUX__INIT_TASK_H 2 #define _LINUX__INIT_TASK_H 3 4 #include <linux/file.h> 5 #include <linux/rcupdate.h> 6 7 #define INIT_FDTABLE \ 8 { \ 9 .max_fds = NR_OPEN_DEFAULT, \ 10 .max_fdset = __FD_SETSIZE, \ 11 .next_fd = 0, \ 12 .fd = &init_files.fd_array[0], \ 13 .close_on_exec = &init_files.close_on_exec_init, \ 14 .open_fds = &init_files.open_fds_init, \ 15 .rcu = RCU_HEAD_INIT, \ 16 .free_files = NULL, \ 17 .next = NULL, \ 18 } 19 20 #define INIT_FILES \ 21 { \ 22 .count = ATOMIC_INIT(1), \ 23 .file_lock = SPIN_LOCK_UNLOCKED, \ 24 .fdt = &init_files.fdtab, \ 25 .fdtab = INIT_FDTABLE, \ 26 .close_on_exec_init = { { 0, } }, \ 27 .open_fds_init = { { 0, } }, \ 28 .fd_array = { NULL, } \ 29 } 30 31 #define INIT_KIOCTX(name, which_mm) \ 32 { \ 33 .users = ATOMIC_INIT(1), \ 34 .dead = 0, \ 35 .mm = &which_mm, \ 36 .user_id = 0, \ 37 .next = NULL, \ 38 .wait = __WAIT_QUEUE_HEAD_INITIALIZER(name.wait), \ 39 .ctx_lock = SPIN_LOCK_UNLOCKED, \ 40 .reqs_active = 0U, \ 41 .max_reqs = ~0U, \ 42 } 43 44 #define INIT_MM(name) \ 45 { \ 46 .mm_rb = RB_ROOT, \ 47 .pgd = swapper_pg_dir, \ 48 .mm_users = ATOMIC_INIT(2), \ 49 .mm_count = ATOMIC_INIT(1), \ 50 .mmap_sem = __RWSEM_INITIALIZER(name.mmap_sem), \ 51 .page_table_lock = SPIN_LOCK_UNLOCKED, \ 52 .mmlist = LIST_HEAD_INIT(name.mmlist), \ 53 .cpu_vm_mask = CPU_MASK_ALL, \ 54 .default_kioctx = INIT_KIOCTX(name.default_kioctx, name), \ 55 } 56 57 #define INIT_SIGNALS(sig) { \ 58 .count = ATOMIC_INIT(1), \ 59 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ 60 .shared_pending = { \ 61 .list = LIST_HEAD_INIT(sig.shared_pending.list), \ 62 .signal = {{0}}}, \ 63 .posix_timers = LIST_HEAD_INIT(sig.posix_timers), \ 64 .cpu_timers = INIT_CPU_TIMERS(sig.cpu_timers), \ 65 .rlim = INIT_RLIMITS, \ 66 } 67 68 #define INIT_SIGHAND(sighand) { \ 69 .count = ATOMIC_INIT(1), \ 70 .action = { { { .sa_handler = NULL, } }, }, \ 71 .siglock = SPIN_LOCK_UNLOCKED, \ 72 } 73 74 extern struct group_info init_groups; 75 76 /* 77 * INIT_TASK is used to set up the first task table, touch at 78 * your own risk!. Base=0, limit=0x1fffff (=2MB) 79 */ 80 #define INIT_TASK(tsk) \ 81 { \ 82 .state = 0, \ 83 .thread_info = &init_thread_info, \ 84 .usage = ATOMIC_INIT(2), \ 85 .flags = 0, \ 86 .lock_depth = -1, \ 87 .prio = MAX_PRIO-20, \ 88 .static_prio = MAX_PRIO-20, \ 89 .policy = SCHED_NORMAL, \ 90 .cpus_allowed = CPU_MASK_ALL, \ 91 .mm = NULL, \ 92 .active_mm = &init_mm, \ 93 .run_list = LIST_HEAD_INIT(tsk.run_list), \ 94 .ioprio = 0, \ 95 .time_slice = HZ, \ 96 .tasks = LIST_HEAD_INIT(tsk.tasks), \ 97 .ptrace_children= LIST_HEAD_INIT(tsk.ptrace_children), \ 98 .ptrace_list = LIST_HEAD_INIT(tsk.ptrace_list), \ 99 .real_parent = &tsk, \ 100 .parent = &tsk, \ 101 .children = LIST_HEAD_INIT(tsk.children), \ 102 .sibling = LIST_HEAD_INIT(tsk.sibling), \ 103 .group_leader = &tsk, \ 104 .group_info = &init_groups, \ 105 .cap_effective = CAP_INIT_EFF_SET, \ 106 .cap_inheritable = CAP_INIT_INH_SET, \ 107 .cap_permitted = CAP_FULL_SET, \ 108 .keep_capabilities = 0, \ 109 .user = INIT_USER, \ 110 .comm = "swapper", \ 111 .thread = INIT_THREAD, \ 112 .fs = &init_fs, \ 113 .files = &init_files, \ 114 .signal = &init_signals, \ 115 .sighand = &init_sighand, \ 116 .pending = { \ 117 .list = LIST_HEAD_INIT(tsk.pending.list), \ 118 .signal = {{0}}}, \ 119 .blocked = {{0}}, \ 120 .alloc_lock = SPIN_LOCK_UNLOCKED, \ 121 .proc_lock = SPIN_LOCK_UNLOCKED, \ 122 .journal_info = NULL, \ 123 .cpu_timers = INIT_CPU_TIMERS(tsk.cpu_timers), \ 124 .fs_excl = ATOMIC_INIT(0), \ 125 } 126 127 128 #define INIT_CPU_TIMERS(cpu_timers) \ 129 { \ 130 LIST_HEAD_INIT(cpu_timers[0]), \ 131 LIST_HEAD_INIT(cpu_timers[1]), \ 132 LIST_HEAD_INIT(cpu_timers[2]), \ 133 } 134 135 136 #endif 137