Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | #ifndef _LINUX__INIT_TASK_H |
| 3 | #define _LINUX__INIT_TASK_H |
| 4 | |
Dipankar Sarma | ab2af1f | 2005-09-09 13:04:13 -0700 | [diff] [blame] | 5 | #include <linux/rcupdate.h> |
Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 6 | #include <linux/irqflags.h> |
Serge E. Hallyn | 4865ecf | 2006-10-02 02:18:14 -0700 | [diff] [blame] | 7 | #include <linux/utsname.h> |
Ingo Molnar | fbb9ce95 | 2006-07-03 00:24:50 -0700 | [diff] [blame] | 8 | #include <linux/lockdep.h> |
Steven Rostedt | 5ac9f62 | 2009-03-25 20:55:00 -0400 | [diff] [blame] | 9 | #include <linux/ftrace.h> |
Kirill Korotaev | 73ea413 | 2006-10-02 02:18:20 -0700 | [diff] [blame] | 10 | #include <linux/ipc.h> |
Cedric Le Goater | 9a575a9 | 2006-12-08 02:37:59 -0800 | [diff] [blame] | 11 | #include <linux/pid_namespace.h> |
Cedric Le Goater | acce292 | 2007-07-15 23:40:59 -0700 | [diff] [blame] | 12 | #include <linux/user_namespace.h> |
Andrew G. Morgan | 3898b1b | 2008-04-28 02:13:40 -0700 | [diff] [blame] | 13 | #include <linux/securebits.h> |
Frederic Weisbecker | 6a61671 | 2012-12-16 20:00:34 +0100 | [diff] [blame] | 14 | #include <linux/seqlock.h> |
Peter Zijlstra | fb00aca | 2013-11-07 14:43:43 +0100 | [diff] [blame] | 15 | #include <linux/rbtree.h> |
Ingo Molnar | dfc3401 | 2017-02-03 23:15:21 +0100 | [diff] [blame] | 16 | #include <linux/sched/autogroup.h> |
Eric W. Biederman | 772698f | 2007-09-12 11:55:17 +0200 | [diff] [blame] | 17 | #include <net/net_namespace.h> |
Ingo Molnar | 77852fe | 2013-02-16 09:46:48 +0100 | [diff] [blame] | 18 | #include <linux/sched/rt.h> |
Josh Poimboeuf | d83a7cb | 2017-02-13 19:42:40 -0600 | [diff] [blame] | 19 | #include <linux/livepatch.h> |
Ingo Molnar | 589ee62 | 2017-02-04 00:16:44 +0100 | [diff] [blame] | 20 | #include <linux/mm_types.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 21 | |
Andy Lutomirski | c65eacb | 2016-09-13 14:29:24 -0700 | [diff] [blame] | 22 | #include <asm/thread_info.h> |
| 23 | |
Al Viro | f52111b | 2008-05-08 18:19:16 -0400 | [diff] [blame] | 24 | extern struct files_struct init_files; |
Al Viro | 18d8fda | 2008-12-26 00:35:37 -0500 | [diff] [blame] | 25 | extern struct fs_struct init_fs; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | |
Peter Zijlstra | 9d7fb04 | 2015-06-30 11:30:54 +0200 | [diff] [blame] | 27 | #ifndef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE |
| 28 | #define INIT_PREV_CPUTIME(x) .prev_cputime = { \ |
| 29 | .lock = __RAW_SPIN_LOCK_UNLOCKED(x.prev_cputime.lock), \ |
| 30 | }, |
| 31 | #else |
| 32 | #define INIT_PREV_CPUTIME(x) |
| 33 | #endif |
| 34 | |
Nicolas Pitre | b18b6a9 | 2017-01-21 00:09:08 -0500 | [diff] [blame] | 35 | #ifdef CONFIG_POSIX_TIMERS |
| 36 | #define INIT_POSIX_TIMERS(s) \ |
| 37 | .posix_timers = LIST_HEAD_INIT(s.posix_timers), |
| 38 | #define INIT_CPU_TIMERS(s) \ |
| 39 | .cpu_timers = { \ |
| 40 | LIST_HEAD_INIT(s.cpu_timers[0]), \ |
| 41 | LIST_HEAD_INIT(s.cpu_timers[1]), \ |
| 42 | LIST_HEAD_INIT(s.cpu_timers[2]), \ |
| 43 | }, |
| 44 | #define INIT_CPUTIMER(s) \ |
| 45 | .cputimer = { \ |
| 46 | .cputime_atomic = INIT_CPUTIME_ATOMIC, \ |
| 47 | .running = false, \ |
| 48 | .checking_timer = false, \ |
| 49 | }, |
| 50 | #else |
| 51 | #define INIT_POSIX_TIMERS(s) |
| 52 | #define INIT_CPU_TIMERS(s) |
| 53 | #define INIT_CPUTIMER(s) |
| 54 | #endif |
| 55 | |
Cedric Le Goater | 1ec320a | 2006-12-08 02:37:55 -0800 | [diff] [blame] | 56 | #define INIT_SIGNALS(sig) { \ |
Oleg Nesterov | b3ac022 | 2010-05-26 14:43:24 -0700 | [diff] [blame] | 57 | .nr_threads = 1, \ |
Oleg Nesterov | 0c740d0 | 2014-01-21 15:49:56 -0800 | [diff] [blame] | 58 | .thread_head = LIST_HEAD_INIT(init_task.thread_node), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 59 | .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ |
Cedric Le Goater | 1ec320a | 2006-12-08 02:37:55 -0800 | [diff] [blame] | 60 | .shared_pending = { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | .list = LIST_HEAD_INIT(sig.shared_pending.list), \ |
Cedric Le Goater | 1ec320a | 2006-12-08 02:37:55 -0800 | [diff] [blame] | 62 | .signal = {{0}}}, \ |
Nicolas Pitre | b18b6a9 | 2017-01-21 00:09:08 -0500 | [diff] [blame] | 63 | INIT_POSIX_TIMERS(sig) \ |
| 64 | INIT_CPU_TIMERS(sig) \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | .rlim = INIT_RLIMITS, \ |
Nicolas Pitre | b18b6a9 | 2017-01-21 00:09:08 -0500 | [diff] [blame] | 66 | INIT_CPUTIMER(sig) \ |
Peter Zijlstra | 9d7fb04 | 2015-06-30 11:30:54 +0200 | [diff] [blame] | 67 | INIT_PREV_CPUTIME(sig) \ |
KOSAKI Motohiro | 9b1bf12 | 2010-10-27 15:34:08 -0700 | [diff] [blame] | 68 | .cred_guard_mutex = \ |
| 69 | __MUTEX_INITIALIZER(sig.cred_guard_mutex), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 70 | } |
| 71 | |
Serge E. Hallyn | ab51601 | 2006-10-02 02:18:06 -0700 | [diff] [blame] | 72 | extern struct nsproxy init_nsproxy; |
Serge E. Hallyn | ab51601 | 2006-10-02 02:18:06 -0700 | [diff] [blame] | 73 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | #define INIT_SIGHAND(sighand) { \ |
| 75 | .count = ATOMIC_INIT(1), \ |
Oleg Nesterov | 0a14a13 | 2010-05-26 14:44:12 -0700 | [diff] [blame] | 76 | .action = { { { .sa_handler = SIG_DFL, } }, }, \ |
Ingo Molnar | e4d9191 | 2006-07-03 00:24:34 -0700 | [diff] [blame] | 77 | .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ |
Davide Libenzi | b8fceee | 2007-09-20 12:40:16 -0700 | [diff] [blame] | 78 | .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | extern struct group_info init_groups; |
| 82 | |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 83 | #define INIT_STRUCT_PID { \ |
| 84 | .count = ATOMIC_INIT(1), \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 85 | .tasks = { \ |
Oleg Nesterov | f200114 | 2010-05-26 14:44:10 -0700 | [diff] [blame] | 86 | { .first = NULL }, \ |
| 87 | { .first = NULL }, \ |
| 88 | { .first = NULL }, \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 89 | }, \ |
Sukadev Bhattiprolu | 4c3f2ea | 2007-10-18 23:40:03 -0700 | [diff] [blame] | 90 | .level = 0, \ |
| 91 | .numbers = { { \ |
| 92 | .nr = 0, \ |
| 93 | .ns = &init_pid_ns, \ |
Sukadev Bhattiprolu | 4c3f2ea | 2007-10-18 23:40:03 -0700 | [diff] [blame] | 94 | }, } \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 95 | } |
| 96 | |
| 97 | #define INIT_PID_LINK(type) \ |
| 98 | { \ |
| 99 | .node = { \ |
| 100 | .next = NULL, \ |
Oleg Nesterov | f200114 | 2010-05-26 14:44:10 -0700 | [diff] [blame] | 101 | .pprev = NULL, \ |
Sukadev Bhattiprolu | 820e45d | 2007-05-10 22:23:00 -0700 | [diff] [blame] | 102 | }, \ |
| 103 | .pid = &init_struct_pid, \ |
| 104 | } |
| 105 | |
David Howells | b6dff3e | 2008-11-14 10:39:16 +1100 | [diff] [blame] | 106 | extern struct cred init_cred; |
| 107 | |
Carsten Emde | f1c6f1a | 2011-10-26 23:14:16 +0200 | [diff] [blame] | 108 | #define INIT_TASK_COMM "swapper" |
| 109 | |
Tim Abbott | 857ecee | 2009-06-23 19:59:36 -0400 | [diff] [blame] | 110 | /* Attach to the init_task data structure for proper alignment */ |
David Howells | d11ed3a | 2018-01-02 15:12:01 +0000 | [diff] [blame] | 111 | #ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK |
Tim Abbott | 2af7687 | 2010-02-20 01:03:35 +0100 | [diff] [blame] | 112 | #define __init_task_data __attribute__((__section__(".data..init_task"))) |
David Howells | d11ed3a | 2018-01-02 15:12:01 +0000 | [diff] [blame] | 113 | #else |
| 114 | #define __init_task_data /**/ |
| 115 | #endif |
Tim Abbott | 857ecee | 2009-06-23 19:59:36 -0400 | [diff] [blame] | 116 | |
David Howells | 0500871 | 2018-01-02 15:12:01 +0000 | [diff] [blame] | 117 | /* Attach to the thread_info data structure for proper alignment */ |
| 118 | #define __init_thread_info __attribute__((__section__(".data..init_thread_info"))) |
| 119 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | #endif |