diff options
Diffstat (limited to 'init/init_task.c')
| -rw-r--r-- | init/init_task.c | 120 |
1 files changed, 97 insertions, 23 deletions
diff --git a/init/init_task.c b/init/init_task.c index 5aebe3be4d7c..49b13d7c3985 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -6,12 +6,15 @@ #include <linux/sched/sysctl.h> #include <linux/sched/rt.h> #include <linux/sched/task.h> +#include <linux/sched/ext.h> #include <linux/init.h> #include <linux/fs.h> #include <linux/mm.h> #include <linux/audit.h> +#include <linux/numa.h> +#include <linux/scs.h> +#include <linux/plist.h> -#include <asm/pgtable.h> #include <linux/uaccess.h> static struct signal_struct init_signals = { @@ -24,13 +27,16 @@ static struct signal_struct init_signals = { }, .multiprocess = HLIST_HEAD_INIT, .rlim = INIT_RLIMITS, +#ifdef CONFIG_CGROUPS + .cgroup_threadgroup_rwsem = __RWSEM_INITIALIZER(init_signals.cgroup_threadgroup_rwsem), +#endif .cred_guard_mutex = __MUTEX_INITIALIZER(init_signals.cred_guard_mutex), + .exec_update_lock = __RWSEM_INITIALIZER(init_signals.exec_update_lock), #ifdef CONFIG_POSIX_TIMERS - .posix_timers = LIST_HEAD_INIT(init_signals.posix_timers), - .cputimer = { + .posix_timers = HLIST_HEAD_INIT, + .ignored_posix_timers = HLIST_HEAD_INIT, + .cputimer = { .cputime_atomic = INIT_CPUTIME_ATOMIC, - .running = false, - .checking_timer = false, }, #endif INIT_CPU_TIMERS(init_signals) @@ -44,37 +50,70 @@ static struct signal_struct init_signals = { }; static struct sighand_struct init_sighand = { - .count = ATOMIC_INIT(1), + .count = REFCOUNT_INIT(1), .action = { { { .sa_handler = SIG_DFL, } }, }, .siglock = __SPIN_LOCK_UNLOCKED(init_sighand.siglock), .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(init_sighand.signalfd_wqh), }; +#ifdef CONFIG_SHADOW_CALL_STACK +unsigned long init_shadow_call_stack[SCS_SIZE / sizeof(long)] = { + [(SCS_SIZE / sizeof(long)) - 1] = SCS_END_MAGIC +}; +#endif + +/* init to 2 - one for init_task, one to ensure it is never freed */ +static struct group_info init_groups = { .usage = REFCOUNT_INIT(2) }; + +/* + * The initial credentials for the initial task + */ +static struct cred init_cred = { + .usage = ATOMIC_INIT(4), + .uid = GLOBAL_ROOT_UID, + .gid = GLOBAL_ROOT_GID, + .suid = GLOBAL_ROOT_UID, + .sgid = GLOBAL_ROOT_GID, + .euid = GLOBAL_ROOT_UID, + .egid = GLOBAL_ROOT_GID, + .fsuid = GLOBAL_ROOT_UID, + .fsgid = GLOBAL_ROOT_GID, + .securebits = SECUREBITS_DEFAULT, + .cap_inheritable = CAP_EMPTY_SET, + .cap_permitted = CAP_FULL_SET, + .cap_effective = CAP_FULL_SET, + .cap_bset = CAP_FULL_SET, + .user = INIT_USER, + .user_ns = &init_user_ns, + .group_info = &init_groups, + .ucounts = &init_ucounts, +}; + /* * Set up the first task table, touch at your own risk!. Base=0, * limit=0x1fffff (=2MB) */ -struct task_struct init_task -#ifdef CONFIG_ARCH_TASK_STRUCT_ON_STACK - __init_task_data -#endif -= { +struct task_struct init_task __aligned(L1_CACHE_BYTES) = { #ifdef CONFIG_THREAD_INFO_IN_TASK .thread_info = INIT_THREAD_INFO(init_task), - .stack_refcount = ATOMIC_INIT(1), + .stack_refcount = REFCOUNT_INIT(1), #endif - .state = 0, + .__state = 0, .stack = init_stack, - .usage = ATOMIC_INIT(2), + .usage = REFCOUNT_INIT(2), .flags = PF_KTHREAD, .prio = MAX_PRIO - 20, .static_prio = MAX_PRIO - 20, .normal_prio = MAX_PRIO - 20, .policy = SCHED_NORMAL, - .cpus_allowed = CPU_MASK_ALL, + .cpus_ptr = &init_task.cpus_mask, + .user_cpus_ptr = NULL, + .cpus_mask = CPU_MASK_ALL, + .max_allowed_capacity = SCHED_CAPACITY_SCALE, .nr_cpus_allowed= NR_CPUS, .mm = NULL, .active_mm = &init_mm, + .faults_disabled_mapping = NULL, .restart_block = { .fn = do_no_restart_syscall, }, @@ -92,6 +131,17 @@ struct task_struct init_task #ifdef CONFIG_CGROUP_SCHED .sched_task_group = &root_task_group, #endif +#ifdef CONFIG_SCHED_CLASS_EXT + .scx = { + .dsq_list.node = LIST_HEAD_INIT(init_task.scx.dsq_list.node), + .sticky_cpu = -1, + .holding_cpu = -1, + .runnable_node = LIST_HEAD_INIT(init_task.scx.runnable_node), + .runnable_at = INITIAL_JIFFIES, + .ddsp_dsq_id = SCX_DSQ_INVALID, + .slice = SCX_SLICE_DFL, + }, +#endif .ptraced = LIST_HEAD_INIT(init_task.ptraced), .ptrace_entry = LIST_HEAD_INIT(init_task.ptrace_entry), .real_parent = &init_task, @@ -105,6 +155,9 @@ struct task_struct init_task .thread = INIT_THREAD, .fs = &init_fs, .files = &init_files, +#ifdef CONFIG_IO_URING + .io_uring = NULL, +#endif .signal = &init_signals, .sighand = &init_sighand, .nsproxy = &init_nsproxy, @@ -119,9 +172,8 @@ struct task_struct init_task .pi_lock = __RAW_SPIN_LOCK_UNLOCKED(init_task.pi_lock), .timer_slack_ns = 50000, /* 50 usec default slack */ .thread_pid = &init_struct_pid, - .thread_group = LIST_HEAD_INIT(init_task.thread_group), .thread_node = LIST_HEAD_INIT(init_signals.thread_head), -#ifdef CONFIG_AUDITSYSCALL +#ifdef CONFIG_AUDIT .loginuid = INVALID_UID, .sessionid = AUDIT_SID_UNSET, #endif @@ -139,9 +191,17 @@ struct task_struct init_task .rcu_tasks_holdout = false, .rcu_tasks_holdout_list = LIST_HEAD_INIT(init_task.rcu_tasks_holdout_list), .rcu_tasks_idle_cpu = -1, + .rcu_tasks_exit_list = LIST_HEAD_INIT(init_task.rcu_tasks_exit_list), +#endif +#ifdef CONFIG_TASKS_TRACE_RCU + .trc_reader_nesting = 0, + .trc_reader_special.s = 0, + .trc_holdout_list = LIST_HEAD_INIT(init_task.trc_holdout_list), + .trc_blkd_node = LIST_HEAD_INIT(init_task.trc_blkd_node), #endif #ifdef CONFIG_CPUSETS - .mems_allowed_seq = SEQCNT_ZERO(init_task.mems_allowed_seq), + .mems_allowed_seq = SEQCNT_SPINLOCK_ZERO(init_task.mems_allowed_seq, + &init_task.alloc_lock), #endif #ifdef CONFIG_RT_MUTEXES .pi_waiters = RB_ROOT_CACHED, @@ -154,31 +214,45 @@ struct task_struct init_task .vtime.state = VTIME_SYS, #endif #ifdef CONFIG_NUMA_BALANCING - .numa_preferred_nid = -1, + .numa_preferred_nid = NUMA_NO_NODE, .numa_group = NULL, .numa_faults = NULL, #endif -#ifdef CONFIG_KASAN +#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS) .kasan_depth = 1, #endif +#ifdef CONFIG_KCSAN + .kcsan_ctx = { + .scoped_accesses = {LIST_POISON1, NULL}, + }, +#endif #ifdef CONFIG_TRACE_IRQFLAGS .softirqs_enabled = 1, #endif #ifdef CONFIG_LOCKDEP + .lockdep_depth = 0, /* no locks held yet */ + .curr_chain_key = INITIAL_CHAIN_KEY, .lockdep_recursion = 0, #endif #ifdef CONFIG_FUNCTION_GRAPH_TRACER - .ret_stack = NULL, + .ret_stack = NULL, + .tracing_graph_pause = ATOMIC_INIT(0), #endif -#if defined(CONFIG_TRACING) && defined(CONFIG_PREEMPT) +#if defined(CONFIG_TRACING) && defined(CONFIG_PREEMPTION) .trace_recursion = 0, #endif #ifdef CONFIG_LIVEPATCH - .patch_state = KLP_UNDEFINED, + .patch_state = KLP_TRANSITION_IDLE, #endif #ifdef CONFIG_SECURITY .security = NULL, #endif +#ifdef CONFIG_SECCOMP_FILTER + .seccomp = { .filter_count = ATOMIC_INIT(0) }, +#endif +#ifdef CONFIG_SCHED_MM_CID + .mm_cid = { .cid = MM_CID_UNSET, }, +#endif }; EXPORT_SYMBOL(init_task); |