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