1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _LINUX__INIT_TASK_H 3 #define _LINUX__INIT_TASK_H 4 5 #include <linux/rcupdate.h> 6 #include <linux/irqflags.h> 7 #include <linux/utsname.h> 8 #include <linux/lockdep.h> 9 #include <linux/ftrace.h> 10 #include <linux/ipc.h> 11 #include <linux/pid_namespace.h> 12 #include <linux/user_namespace.h> 13 #include <linux/securebits.h> 14 #include <linux/seqlock.h> 15 #include <linux/rbtree.h> 16 #include <linux/sched/autogroup.h> 17 #include <net/net_namespace.h> 18 #include <linux/sched/rt.h> 19 #include <linux/livepatch.h> 20 #include <linux/mm_types.h> 21 22 #include <asm/thread_info.h> 23 24 extern struct files_struct init_files; 25 extern struct fs_struct init_fs; 26 extern struct nsproxy init_nsproxy; 27 extern struct group_info init_groups; 28 extern struct cred init_cred; 29 30 #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE 31 #define INIT_PREV_CPUTIME(x) .prev_cputime = { \ 32 .lock = __RAW_SPIN_LOCK_UNLOCKED(x.prev_cputime.lock), \ 33 }, 34 #else 35 #define INIT_PREV_CPUTIME(x) 36 #endif 37 38 #ifdef CONFIG_POSIX_TIMERS 39 #define INIT_CPU_TIMERS(s) \ 40 .cpu_timers = { \ 41 LIST_HEAD_INIT(s.cpu_timers[0]), \ 42 LIST_HEAD_INIT(s.cpu_timers[1]), \ 43 LIST_HEAD_INIT(s.cpu_timers[2]), \ 44 }, 45 #else 46 #define INIT_CPU_TIMERS(s) 47 #endif 48 49 50 #define INIT_STRUCT_PID { \ 51 .count = ATOMIC_INIT(1), \ 52 .tasks = { \ 53 { .first = NULL }, \ 54 { .first = NULL }, \ 55 { .first = NULL }, \ 56 }, \ 57 .level = 0, \ 58 .numbers = { { \ 59 .nr = 0, \ 60 .ns = &init_pid_ns, \ 61 }, } \ 62 } 63 64 #define INIT_PID_LINK(type) \ 65 { \ 66 .node = { \ 67 .next = NULL, \ 68 .pprev = NULL, \ 69 }, \ 70 .pid = &init_struct_pid, \ 71 } 72 73 #define INIT_TASK_COMM "swapper" 74 75 /* Attach to the init_task data structure for proper alignment */ 76 #ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK 77 #define __init_task_data __attribute__((__section__(".data..init_task"))) 78 #else 79 #define __init_task_data /**/ 80 #endif 81 82 /* Attach to the thread_info data structure for proper alignment */ 83 #define __init_thread_info __attribute__((__section__(".data..init_thread_info"))) 84 85 #endif 86