Lines Matching refs:tsk
176 void __weak arch_release_task_struct(struct task_struct *tsk) in arch_release_task_struct() argument
187 static inline void free_task_struct(struct task_struct *tsk) in free_task_struct() argument
189 kmem_cache_free(task_struct_cachep, tsk); in free_task_struct()
235 static void thread_stack_delayed_free(struct task_struct *tsk) in thread_stack_delayed_free() argument
237 struct vm_stack *vm_stack = tsk->stack; in thread_stack_delayed_free()
239 vm_stack->stack_vm_area = tsk->stack_vm_area; in thread_stack_delayed_free()
282 static int alloc_thread_stack_node(struct task_struct *tsk, int node) in alloc_thread_stack_node() argument
306 tsk->stack_vm_area = vm_area; in alloc_thread_stack_node()
307 tsk->stack = stack; in alloc_thread_stack_node()
327 tsk->stack_vm_area = vm_area; in alloc_thread_stack_node()
329 tsk->stack = stack; in alloc_thread_stack_node()
333 static void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
335 if (!try_release_thread_stack_to_cache(tsk->stack_vm_area)) in free_thread_stack()
336 thread_stack_delayed_free(tsk); in free_thread_stack()
338 tsk->stack = NULL; in free_thread_stack()
339 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()
389 static void thread_stack_delayed_free(struct task_struct *tsk) in thread_stack_delayed_free() argument
391 struct rcu_head *rh = tsk->stack; in thread_stack_delayed_free()
396 static int alloc_thread_stack_node(struct task_struct *tsk, int node) in alloc_thread_stack_node() argument
401 tsk->stack = stack; in alloc_thread_stack_node()
405 static void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
407 thread_stack_delayed_free(tsk); in free_thread_stack()
408 tsk->stack = NULL; in free_thread_stack()
437 static void account_kernel_stack(struct task_struct *tsk, int account) in account_kernel_stack() argument
440 struct vm_struct *vm_area = task_stack_vm_area(tsk); in account_kernel_stack()
447 void *stack = task_stack_page(tsk); in account_kernel_stack()
455 void exit_task_stack_account(struct task_struct *tsk) in exit_task_stack_account() argument
457 account_kernel_stack(tsk, -1); in exit_task_stack_account()
463 vm_area = task_stack_vm_area(tsk); in exit_task_stack_account()
469 static void release_task_stack(struct task_struct *tsk) in release_task_stack() argument
471 if (WARN_ON(READ_ONCE(tsk->__state) != TASK_DEAD)) in release_task_stack()
474 free_thread_stack(tsk); in release_task_stack()
478 void put_task_stack(struct task_struct *tsk) in put_task_stack() argument
480 if (refcount_dec_and_test(&tsk->stack_refcount)) in put_task_stack()
481 release_task_stack(tsk); in put_task_stack()
485 void free_task(struct task_struct *tsk) in free_task() argument
488 WARN_ON_ONCE(tsk->seccomp.filter); in free_task()
490 release_user_cpus_ptr(tsk); in free_task()
491 scs_release(tsk); in free_task()
498 release_task_stack(tsk); in free_task()
504 WARN_ON_ONCE(refcount_read(&tsk->stack_refcount) != 0); in free_task()
506 rt_mutex_debug_task_free(tsk); in free_task()
507 ftrace_graph_exit_task(tsk); in free_task()
508 arch_release_task_struct(tsk); in free_task()
509 if (tsk->flags & PF_KTHREAD) in free_task()
510 free_kthread_struct(tsk); in free_task()
511 bpf_task_storage_free(tsk); in free_task()
512 free_task_struct(tsk); in free_task()
732 void __put_task_struct(struct task_struct *tsk) in __put_task_struct() argument
734 WARN_ON(!tsk->exit_state); in __put_task_struct()
735 WARN_ON(refcount_read(&tsk->usage)); in __put_task_struct()
736 WARN_ON(tsk == current); in __put_task_struct()
738 unwind_task_free(tsk); in __put_task_struct()
739 sched_ext_free(tsk); in __put_task_struct()
740 io_uring_free(tsk); in __put_task_struct()
741 cgroup_free(tsk); in __put_task_struct()
742 task_numa_free(tsk, true); in __put_task_struct()
743 security_task_free(tsk); in __put_task_struct()
744 exit_creds(tsk); in __put_task_struct()
745 delayacct_tsk_free(tsk); in __put_task_struct()
746 put_signal_struct(tsk->signal); in __put_task_struct()
747 sched_core_free(tsk); in __put_task_struct()
748 free_task(tsk); in __put_task_struct()
858 void set_task_stack_end_magic(struct task_struct *tsk) in set_task_stack_end_magic() argument
862 stackend = end_of_stack(tsk); in set_task_stack_end_magic()
868 struct task_struct *tsk; in dup_task_struct() local
873 tsk = alloc_task_struct_node(node); in dup_task_struct()
874 if (!tsk) in dup_task_struct()
877 err = arch_dup_task_struct(tsk, orig); in dup_task_struct()
881 err = alloc_thread_stack_node(tsk, node); in dup_task_struct()
886 refcount_set(&tsk->stack_refcount, 1); in dup_task_struct()
888 account_kernel_stack(tsk, 1); in dup_task_struct()
890 err = scs_prepare(tsk, node); in dup_task_struct()
901 tsk->seccomp.filter = NULL; in dup_task_struct()
904 setup_thread_stack(tsk, orig); in dup_task_struct()
905 clear_user_return_notifier(tsk); in dup_task_struct()
906 clear_tsk_need_resched(tsk); in dup_task_struct()
907 set_task_stack_end_magic(tsk); in dup_task_struct()
908 clear_syscall_work_syscall_user_dispatch(tsk); in dup_task_struct()
911 tsk->stack_canary = get_random_canary(); in dup_task_struct()
914 tsk->cpus_ptr = &tsk->cpus_mask; in dup_task_struct()
915 dup_user_cpus_ptr(tsk, orig, node); in dup_task_struct()
921 refcount_set(&tsk->rcu_users, 2); in dup_task_struct()
923 refcount_set(&tsk->usage, 1); in dup_task_struct()
925 tsk->btrace_seq = 0; in dup_task_struct()
927 tsk->splice_pipe = NULL; in dup_task_struct()
928 tsk->task_frag.page = NULL; in dup_task_struct()
929 tsk->wake_q.next = NULL; in dup_task_struct()
930 tsk->worker_private = NULL; in dup_task_struct()
932 kcov_task_init(tsk); in dup_task_struct()
933 kmsan_task_create(tsk); in dup_task_struct()
934 kmap_local_fork(tsk); in dup_task_struct()
937 tsk->fail_nth = 0; in dup_task_struct()
941 tsk->throttle_disk = NULL; in dup_task_struct()
942 tsk->use_memdelay = 0; in dup_task_struct()
946 tsk->pasid_activated = 0; in dup_task_struct()
950 tsk->active_memcg = NULL; in dup_task_struct()
954 tsk->reported_split_lock = 0; in dup_task_struct()
958 tsk->mm_cid = -1; in dup_task_struct()
959 tsk->last_mm_cid = -1; in dup_task_struct()
960 tsk->mm_cid_active = 0; in dup_task_struct()
961 tsk->migrate_from_cpu = -1; in dup_task_struct()
963 return tsk; in dup_task_struct()
966 exit_task_stack_account(tsk); in dup_task_struct()
967 free_thread_stack(tsk); in dup_task_struct()
969 free_task_struct(tsk); in dup_task_struct()
1372 static void complete_vfork_done(struct task_struct *tsk) in complete_vfork_done() argument
1376 task_lock(tsk); in complete_vfork_done()
1377 vfork = tsk->vfork_done; in complete_vfork_done()
1379 tsk->vfork_done = NULL; in complete_vfork_done()
1382 task_unlock(tsk); in complete_vfork_done()
1418 static void mm_release(struct task_struct *tsk, struct mm_struct *mm) in mm_release() argument
1420 uprobe_free_utask(tsk); in mm_release()
1423 deactivate_mm(tsk, mm); in mm_release()
1430 if (tsk->clear_child_tid) { in mm_release()
1436 put_user(0, tsk->clear_child_tid); in mm_release()
1437 do_futex(tsk->clear_child_tid, FUTEX_WAKE, in mm_release()
1440 tsk->clear_child_tid = NULL; in mm_release()
1447 if (tsk->vfork_done) in mm_release()
1448 complete_vfork_done(tsk); in mm_release()
1451 void exit_mm_release(struct task_struct *tsk, struct mm_struct *mm) in exit_mm_release() argument
1453 futex_exit_release(tsk); in exit_mm_release()
1454 mm_release(tsk, mm); in exit_mm_release()
1457 void exec_mm_release(struct task_struct *tsk, struct mm_struct *mm) in exec_mm_release() argument
1459 futex_exec_release(tsk); in exec_mm_release()
1460 mm_release(tsk, mm); in exec_mm_release()
1473 static struct mm_struct *dup_mm(struct task_struct *tsk, in dup_mm() argument
1485 if (!mm_init(mm, tsk, mm->user_ns)) in dup_mm()
1514 static int copy_mm(u64 clone_flags, struct task_struct *tsk) in copy_mm() argument
1518 tsk->min_flt = tsk->maj_flt = 0; in copy_mm()
1519 tsk->nvcsw = tsk->nivcsw = 0; in copy_mm()
1521 tsk->last_switch_count = tsk->nvcsw + tsk->nivcsw; in copy_mm()
1522 tsk->last_switch_time = 0; in copy_mm()
1525 tsk->mm = NULL; in copy_mm()
1526 tsk->active_mm = NULL; in copy_mm()
1541 mm = dup_mm(tsk, current->mm); in copy_mm()
1546 tsk->mm = mm; in copy_mm()
1547 tsk->active_mm = mm; in copy_mm()
1548 sched_mm_cid_fork(tsk); in copy_mm()
1552 static int copy_fs(u64 clone_flags, struct task_struct *tsk) in copy_fs() argument
1567 tsk->fs = copy_fs_struct(fs); in copy_fs()
1568 if (!tsk->fs) in copy_fs()
1573 static int copy_files(u64 clone_flags, struct task_struct *tsk, in copy_files() argument
1586 tsk->files = NULL; in copy_files()
1599 tsk->files = newf; in copy_files()
1603 static int copy_sighand(u64 clone_flags, struct task_struct *tsk) in copy_sighand() argument
1612 RCU_INIT_POINTER(tsk->sighand, sig); in copy_sighand()
1623 flush_signal_handlers(tsk, 0); in copy_sighand()
1652 static int copy_signal(u64 clone_flags, struct task_struct *tsk) in copy_signal() argument
1660 tsk->signal = sig; in copy_signal()
1670 sig->thread_head = (struct list_head)LIST_HEAD_INIT(tsk->thread_node); in copy_signal()
1671 tsk->thread_node = (struct list_head)LIST_HEAD_INIT(sig->thread_head); in copy_signal()
1674 sig->curr_target = tsk; in copy_signal()
1870 struct task_struct *tsk = container_of(rhp, struct task_struct, rcu); in __delayed_free_task() local
1872 free_task(tsk); in __delayed_free_task()
1875 static __always_inline void delayed_free_task(struct task_struct *tsk) in delayed_free_task() argument
1878 call_rcu(&tsk->rcu, __delayed_free_task); in delayed_free_task()
1880 free_task(tsk); in delayed_free_task()
1883 static void copy_oom_score_adj(u64 clone_flags, struct task_struct *tsk) in copy_oom_score_adj() argument
1886 if (!tsk->mm) in copy_oom_score_adj()
1895 mm_flags_set(MMF_MULTIPROCESS, tsk->mm); in copy_oom_score_adj()
1897 tsk->signal->oom_score_adj = current->signal->oom_score_adj; in copy_oom_score_adj()
1898 tsk->signal->oom_score_adj_min = current->signal->oom_score_adj_min; in copy_oom_score_adj()