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-rw-r--r--include/linux/init_task.h56
1 files changed, 34 insertions, 22 deletions
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index f00253b3fc47..caa151fbebb7 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -12,11 +12,18 @@
12#include <linux/securebits.h> 12#include <linux/securebits.h>
13#include <net/net_namespace.h> 13#include <net/net_namespace.h>
14 14
15#ifdef CONFIG_SMP
16# define INIT_PUSHABLE_TASKS(tsk) \
17 .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO),
18#else
19# define INIT_PUSHABLE_TASKS(tsk)
20#endif
21
15extern struct files_struct init_files; 22extern struct files_struct init_files;
16extern struct fs_struct init_fs; 23extern struct fs_struct init_fs;
17 24
18#define INIT_SIGNALS(sig) { \ 25#define INIT_SIGNALS(sig) { \
19 .count = ATOMIC_INIT(1), \ 26 .nr_threads = 1, \
20 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\ 27 .wait_chldexit = __WAIT_QUEUE_HEAD_INITIALIZER(sig.wait_chldexit),\
21 .shared_pending = { \ 28 .shared_pending = { \
22 .list = LIST_HEAD_INIT(sig.shared_pending.list), \ 29 .list = LIST_HEAD_INIT(sig.shared_pending.list), \
@@ -29,21 +36,15 @@ extern struct fs_struct init_fs;
29 .running = 0, \ 36 .running = 0, \
30 .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \ 37 .lock = __SPIN_LOCK_UNLOCKED(sig.cputimer.lock), \
31 }, \ 38 }, \
39 .cred_guard_mutex = \
40 __MUTEX_INITIALIZER(sig.cred_guard_mutex), \
32} 41}
33 42
34extern struct nsproxy init_nsproxy; 43extern struct nsproxy init_nsproxy;
35#define INIT_NSPROXY(nsproxy) { \
36 .pid_ns = &init_pid_ns, \
37 .count = ATOMIC_INIT(1), \
38 .uts_ns = &init_uts_ns, \
39 .mnt_ns = NULL, \
40 INIT_NET_NS(net_ns) \
41 INIT_IPC_NS(ipc_ns) \
42}
43 44
44#define INIT_SIGHAND(sighand) { \ 45#define INIT_SIGHAND(sighand) { \
45 .count = ATOMIC_INIT(1), \ 46 .count = ATOMIC_INIT(1), \
46 .action = { { { .sa_handler = NULL, } }, }, \ 47 .action = { { { .sa_handler = SIG_DFL, } }, }, \
47 .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \ 48 .siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
48 .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \ 49 .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \
49} 50}
@@ -53,11 +54,10 @@ extern struct group_info init_groups;
53#define INIT_STRUCT_PID { \ 54#define INIT_STRUCT_PID { \
54 .count = ATOMIC_INIT(1), \ 55 .count = ATOMIC_INIT(1), \
55 .tasks = { \ 56 .tasks = { \
56 { .first = &init_task.pids[PIDTYPE_PID].node }, \ 57 { .first = NULL }, \
57 { .first = &init_task.pids[PIDTYPE_PGID].node }, \ 58 { .first = NULL }, \
58 { .first = &init_task.pids[PIDTYPE_SID].node }, \ 59 { .first = NULL }, \
59 }, \ 60 }, \
60 .rcu = RCU_HEAD_INIT, \
61 .level = 0, \ 61 .level = 0, \
62 .numbers = { { \ 62 .numbers = { { \
63 .nr = 0, \ 63 .nr = 0, \
@@ -70,7 +70,7 @@ extern struct group_info init_groups;
70{ \ 70{ \
71 .node = { \ 71 .node = { \
72 .next = NULL, \ 72 .next = NULL, \
73 .pprev = &init_struct_pid.tasks[type].first, \ 73 .pprev = NULL, \
74 }, \ 74 }, \
75 .pid = &init_struct_pid, \ 75 .pid = &init_struct_pid, \
76} 76}
@@ -90,12 +90,25 @@ extern struct group_info init_groups;
90 */ 90 */
91# define CAP_INIT_BSET CAP_FULL_SET 91# define CAP_INIT_BSET CAP_FULL_SET
92 92
93#ifdef CONFIG_RCU_BOOST
94#define INIT_TASK_RCU_BOOST() \
95 .rcu_boost_mutex = NULL,
96#else
97#define INIT_TASK_RCU_BOOST()
98#endif
93#ifdef CONFIG_TREE_PREEMPT_RCU 99#ifdef CONFIG_TREE_PREEMPT_RCU
100#define INIT_TASK_RCU_TREE_PREEMPT() \
101 .rcu_blocked_node = NULL,
102#else
103#define INIT_TASK_RCU_TREE_PREEMPT(tsk)
104#endif
105#ifdef CONFIG_PREEMPT_RCU
94#define INIT_TASK_RCU_PREEMPT(tsk) \ 106#define INIT_TASK_RCU_PREEMPT(tsk) \
95 .rcu_read_lock_nesting = 0, \ 107 .rcu_read_lock_nesting = 0, \
96 .rcu_read_unlock_special = 0, \ 108 .rcu_read_unlock_special = 0, \
97 .rcu_blocked_node = NULL, \ 109 .rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), \
98 .rcu_node_entry = LIST_HEAD_INIT(tsk.rcu_node_entry), 110 INIT_TASK_RCU_TREE_PREEMPT() \
111 INIT_TASK_RCU_BOOST()
99#else 112#else
100#define INIT_TASK_RCU_PREEMPT(tsk) 113#define INIT_TASK_RCU_PREEMPT(tsk)
101#endif 114#endif
@@ -138,7 +151,7 @@ extern struct cred init_cred;
138 .nr_cpus_allowed = NR_CPUS, \ 151 .nr_cpus_allowed = NR_CPUS, \
139 }, \ 152 }, \
140 .tasks = LIST_HEAD_INIT(tsk.tasks), \ 153 .tasks = LIST_HEAD_INIT(tsk.tasks), \
141 .pushable_tasks = PLIST_NODE_INIT(tsk.pushable_tasks, MAX_PRIO), \ 154 INIT_PUSHABLE_TASKS(tsk) \
142 .ptraced = LIST_HEAD_INIT(tsk.ptraced), \ 155 .ptraced = LIST_HEAD_INIT(tsk.ptraced), \
143 .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \ 156 .ptrace_entry = LIST_HEAD_INIT(tsk.ptrace_entry), \
144 .real_parent = &tsk, \ 157 .real_parent = &tsk, \
@@ -146,10 +159,8 @@ extern struct cred init_cred;
146 .children = LIST_HEAD_INIT(tsk.children), \ 159 .children = LIST_HEAD_INIT(tsk.children), \
147 .sibling = LIST_HEAD_INIT(tsk.sibling), \ 160 .sibling = LIST_HEAD_INIT(tsk.sibling), \
148 .group_leader = &tsk, \ 161 .group_leader = &tsk, \
149 .real_cred = &init_cred, \ 162 RCU_INIT_POINTER(.real_cred, &init_cred), \
150 .cred = &init_cred, \ 163 RCU_INIT_POINTER(.cred, &init_cred), \
151 .cred_guard_mutex = \
152 __MUTEX_INITIALIZER(tsk.cred_guard_mutex), \
153 .comm = "swapper", \ 164 .comm = "swapper", \
154 .thread = INIT_THREAD, \ 165 .thread = INIT_THREAD, \
155 .fs = &init_fs, \ 166 .fs = &init_fs, \
@@ -172,6 +183,7 @@ extern struct cred init_cred;
172 [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \ 183 [PIDTYPE_PGID] = INIT_PID_LINK(PIDTYPE_PGID), \
173 [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \ 184 [PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \
174 }, \ 185 }, \
186 .thread_group = LIST_HEAD_INIT(tsk.thread_group), \
175 .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \ 187 .dirties = INIT_PROP_LOCAL_SINGLE(dirties), \
176 INIT_IDS \ 188 INIT_IDS \
177 INIT_PERF_EVENTS(tsk) \ 189 INIT_PERF_EVENTS(tsk) \
generated by cgit v1.2.2 (git 2.25.0) at 2026-04-07 03:01:38 -0400