Lines Matching refs:tsk
173 void __weak arch_release_task_struct(struct task_struct *tsk) in arch_release_task_struct() argument
184 static inline void free_task_struct(struct task_struct *tsk) in free_task_struct() argument
186 kmem_cache_free(task_struct_cachep, tsk); in free_task_struct()
231 static void thread_stack_delayed_free(struct task_struct *tsk) in thread_stack_delayed_free() argument
233 struct vm_stack *vm_stack = tsk->stack; in thread_stack_delayed_free()
235 vm_stack->stack_vm_area = tsk->stack_vm_area; in thread_stack_delayed_free()
278 static int alloc_thread_stack_node(struct task_struct *tsk, int node) in alloc_thread_stack_node() argument
305 tsk->stack_vm_area = s; in alloc_thread_stack_node()
306 tsk->stack = stack; in alloc_thread_stack_node()
333 tsk->stack_vm_area = vm; in alloc_thread_stack_node()
335 tsk->stack = stack; in alloc_thread_stack_node()
339 static void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
341 if (!try_release_thread_stack_to_cache(tsk->stack_vm_area)) in free_thread_stack()
342 thread_stack_delayed_free(tsk); in free_thread_stack()
344 tsk->stack = NULL; in free_thread_stack()
345 tsk->stack_vm_area = NULL; in free_thread_stack()
355 static void thread_stack_delayed_free(struct task_struct *tsk) in thread_stack_delayed_free() argument
357 struct rcu_head *rh = tsk->stack; in thread_stack_delayed_free()
362 static int alloc_thread_stack_node(struct task_struct *tsk, int node) in alloc_thread_stack_node() argument
368 tsk->stack = kasan_reset_tag(page_address(page)); in alloc_thread_stack_node()
374 static void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
376 thread_stack_delayed_free(tsk); in free_thread_stack()
377 tsk->stack = NULL; in free_thread_stack()
390 static void thread_stack_delayed_free(struct task_struct *tsk) in thread_stack_delayed_free() argument
392 struct rcu_head *rh = tsk->stack; in thread_stack_delayed_free()
397 static int alloc_thread_stack_node(struct task_struct *tsk, int node) in alloc_thread_stack_node() argument
402 tsk->stack = stack; in alloc_thread_stack_node()
406 static void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
408 thread_stack_delayed_free(tsk); in free_thread_stack()
409 tsk->stack = NULL; in free_thread_stack()
540 static void account_kernel_stack(struct task_struct *tsk, int account) in account_kernel_stack() argument
543 struct vm_struct *vm = task_stack_vm_area(tsk); in account_kernel_stack()
550 void *stack = task_stack_page(tsk); in account_kernel_stack()
558 void exit_task_stack_account(struct task_struct *tsk) in exit_task_stack_account() argument
560 account_kernel_stack(tsk, -1); in exit_task_stack_account()
566 vm = task_stack_vm_area(tsk); in exit_task_stack_account()
572 static void release_task_stack(struct task_struct *tsk) in release_task_stack() argument
574 if (WARN_ON(READ_ONCE(tsk->__state) != TASK_DEAD)) in release_task_stack()
577 free_thread_stack(tsk); in release_task_stack()
581 void put_task_stack(struct task_struct *tsk) in put_task_stack() argument
583 if (refcount_dec_and_test(&tsk->stack_refcount)) in put_task_stack()
584 release_task_stack(tsk); in put_task_stack()
588 void free_task(struct task_struct *tsk) in free_task() argument
591 WARN_ON_ONCE(tsk->seccomp.filter); in free_task()
593 release_user_cpus_ptr(tsk); in free_task()
594 scs_release(tsk); in free_task()
601 release_task_stack(tsk); in free_task()
607 WARN_ON_ONCE(refcount_read(&tsk->stack_refcount) != 0); in free_task()
609 rt_mutex_debug_task_free(tsk); in free_task()
610 ftrace_graph_exit_task(tsk); in free_task()
611 arch_release_task_struct(tsk); in free_task()
612 if (tsk->flags & PF_KTHREAD) in free_task()
613 free_kthread_struct(tsk); in free_task()
614 bpf_task_storage_free(tsk); in free_task()
615 free_task_struct(tsk); in free_task()
968 void __put_task_struct(struct task_struct *tsk) in __put_task_struct() argument
970 WARN_ON(!tsk->exit_state); in __put_task_struct()
971 WARN_ON(refcount_read(&tsk->usage)); in __put_task_struct()
972 WARN_ON(tsk == current); in __put_task_struct()
974 sched_ext_free(tsk); in __put_task_struct()
975 io_uring_free(tsk); in __put_task_struct()
976 cgroup_free(tsk); in __put_task_struct()
977 task_numa_free(tsk, true); in __put_task_struct()
978 security_task_free(tsk); in __put_task_struct()
979 exit_creds(tsk); in __put_task_struct()
980 delayacct_tsk_free(tsk); in __put_task_struct()
981 put_signal_struct(tsk->signal); in __put_task_struct()
982 sched_core_free(tsk); in __put_task_struct()
983 free_task(tsk); in __put_task_struct()
1093 void set_task_stack_end_magic(struct task_struct *tsk) in set_task_stack_end_magic() argument
1097 stackend = end_of_stack(tsk); in set_task_stack_end_magic()
1103 struct task_struct *tsk; in dup_task_struct() local
1108 tsk = alloc_task_struct_node(node); in dup_task_struct()
1109 if (!tsk) in dup_task_struct()
1112 err = arch_dup_task_struct(tsk, orig); in dup_task_struct()
1116 err = alloc_thread_stack_node(tsk, node); in dup_task_struct()
1121 refcount_set(&tsk->stack_refcount, 1); in dup_task_struct()
1123 account_kernel_stack(tsk, 1); in dup_task_struct()
1125 err = scs_prepare(tsk, node); in dup_task_struct()
1136 tsk->seccomp.filter = NULL; in dup_task_struct()
1139 setup_thread_stack(tsk, orig); in dup_task_struct()
1140 clear_user_return_notifier(tsk); in dup_task_struct()
1141 clear_tsk_need_resched(tsk); in dup_task_struct()
1142 set_task_stack_end_magic(tsk); in dup_task_struct()
1143 clear_syscall_work_syscall_user_dispatch(tsk); in dup_task_struct()
1146 tsk->stack_canary = get_random_canary(); in dup_task_struct()
1149 tsk->cpus_ptr = &tsk->cpus_mask; in dup_task_struct()
1150 dup_user_cpus_ptr(tsk, orig, node); in dup_task_struct()
1156 refcount_set(&tsk->rcu_users, 2); in dup_task_struct()
1158 refcount_set(&tsk->usage, 1); in dup_task_struct()
1160 tsk->btrace_seq = 0; in dup_task_struct()
1162 tsk->splice_pipe = NULL; in dup_task_struct()
1163 tsk->task_frag.page = NULL; in dup_task_struct()
1164 tsk->wake_q.next = NULL; in dup_task_struct()
1165 tsk->worker_private = NULL; in dup_task_struct()
1167 kcov_task_init(tsk); in dup_task_struct()
1168 kmsan_task_create(tsk); in dup_task_struct()
1169 kmap_local_fork(tsk); in dup_task_struct()
1172 tsk->fail_nth = 0; in dup_task_struct()
1176 tsk->throttle_disk = NULL; in dup_task_struct()
1177 tsk->use_memdelay = 0; in dup_task_struct()
1181 tsk->pasid_activated = 0; in dup_task_struct()
1185 tsk->active_memcg = NULL; in dup_task_struct()
1189 tsk->reported_split_lock = 0; in dup_task_struct()
1193 tsk->mm_cid = -1; in dup_task_struct()
1194 tsk->last_mm_cid = -1; in dup_task_struct()
1195 tsk->mm_cid_active = 0; in dup_task_struct()
1196 tsk->migrate_from_cpu = -1; in dup_task_struct()
1198 return tsk; in dup_task_struct()
1201 exit_task_stack_account(tsk); in dup_task_struct()
1202 free_thread_stack(tsk); in dup_task_struct()
1204 free_task_struct(tsk); in dup_task_struct()
1559 static void complete_vfork_done(struct task_struct *tsk) in complete_vfork_done() argument
1563 task_lock(tsk); in complete_vfork_done()
1564 vfork = tsk->vfork_done; in complete_vfork_done()
1566 tsk->vfork_done = NULL; in complete_vfork_done()
1569 task_unlock(tsk); in complete_vfork_done()
1605 static void mm_release(struct task_struct *tsk, struct mm_struct *mm) in mm_release() argument
1607 uprobe_free_utask(tsk); in mm_release()
1610 deactivate_mm(tsk, mm); in mm_release()
1617 if (tsk->clear_child_tid) { in mm_release()
1623 put_user(0, tsk->clear_child_tid); in mm_release()
1624 do_futex(tsk->clear_child_tid, FUTEX_WAKE, in mm_release()
1627 tsk->clear_child_tid = NULL; in mm_release()
1634 if (tsk->vfork_done) in mm_release()
1635 complete_vfork_done(tsk); in mm_release()
1638 void exit_mm_release(struct task_struct *tsk, struct mm_struct *mm) in exit_mm_release() argument
1640 futex_exit_release(tsk); in exit_mm_release()
1641 mm_release(tsk, mm); in exit_mm_release()
1644 void exec_mm_release(struct task_struct *tsk, struct mm_struct *mm) in exec_mm_release() argument
1646 futex_exec_release(tsk); in exec_mm_release()
1647 mm_release(tsk, mm); in exec_mm_release()
1660 static struct mm_struct *dup_mm(struct task_struct *tsk, in dup_mm() argument
1672 if (!mm_init(mm, tsk, mm->user_ns)) in dup_mm()
1697 static int copy_mm(unsigned long clone_flags, struct task_struct *tsk) in copy_mm() argument
1701 tsk->min_flt = tsk->maj_flt = 0; in copy_mm()
1702 tsk->nvcsw = tsk->nivcsw = 0; in copy_mm()
1704 tsk->last_switch_count = tsk->nvcsw + tsk->nivcsw; in copy_mm()
1705 tsk->last_switch_time = 0; in copy_mm()
1708 tsk->mm = NULL; in copy_mm()
1709 tsk->active_mm = NULL; in copy_mm()
1724 mm = dup_mm(tsk, current->mm); in copy_mm()
1729 tsk->mm = mm; in copy_mm()
1730 tsk->active_mm = mm; in copy_mm()
1731 sched_mm_cid_fork(tsk); in copy_mm()
1735 static int copy_fs(unsigned long clone_flags, struct task_struct *tsk) in copy_fs() argument
1750 tsk->fs = copy_fs_struct(fs); in copy_fs()
1751 if (!tsk->fs) in copy_fs()
1756 static int copy_files(unsigned long clone_flags, struct task_struct *tsk, in copy_files() argument
1769 tsk->files = NULL; in copy_files()
1782 tsk->files = newf; in copy_files()
1786 static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk) in copy_sighand() argument
1795 RCU_INIT_POINTER(tsk->sighand, sig); in copy_sighand()
1806 flush_signal_handlers(tsk, 0); in copy_sighand()
1835 static int copy_signal(unsigned long clone_flags, struct task_struct *tsk) in copy_signal() argument
1843 tsk->signal = sig; in copy_signal()
1853 sig->thread_head = (struct list_head)LIST_HEAD_INIT(tsk->thread_node); in copy_signal()
1854 tsk->thread_node = (struct list_head)LIST_HEAD_INIT(sig->thread_head); in copy_signal()
1857 sig->curr_target = tsk; in copy_signal()
2066 struct task_struct *tsk = container_of(rhp, struct task_struct, rcu); in __delayed_free_task() local
2068 free_task(tsk); in __delayed_free_task()
2071 static __always_inline void delayed_free_task(struct task_struct *tsk) in delayed_free_task() argument
2074 call_rcu(&tsk->rcu, __delayed_free_task); in delayed_free_task()
2076 free_task(tsk); in delayed_free_task()
2079 static void copy_oom_score_adj(u64 clone_flags, struct task_struct *tsk) in copy_oom_score_adj() argument
2082 if (!tsk->mm) in copy_oom_score_adj()
2091 set_bit(MMF_MULTIPROCESS, &tsk->mm->flags); in copy_oom_score_adj()
2093 tsk->signal->oom_score_adj = current->signal->oom_score_adj; in copy_oom_score_adj()
2094 tsk->signal->oom_score_adj_min = current->signal->oom_score_adj_min; in copy_oom_score_adj()