Lines Matching refs:tsk
161 void __weak arch_release_task_struct(struct task_struct *tsk) in arch_release_task_struct() argument
173 static inline void free_task_struct(struct task_struct *tsk) in free_task_struct() argument
175 kmem_cache_free(task_struct_cachep, tsk); in free_task_struct()
214 static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, int node) in alloc_thread_stack_node() argument
234 tsk->stack_vm_area = s; in alloc_thread_stack_node()
235 tsk->stack = s->addr; in alloc_thread_stack_node()
256 tsk->stack_vm_area = find_vm_area(stack); in alloc_thread_stack_node()
257 tsk->stack = stack; in alloc_thread_stack_node()
265 tsk->stack = kasan_reset_tag(page_address(page)); in alloc_thread_stack_node()
266 return tsk->stack; in alloc_thread_stack_node()
272 static inline void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
275 struct vm_struct *vm = task_stack_vm_area(tsk); in free_thread_stack()
285 NULL, tsk->stack_vm_area) != NULL) in free_thread_stack()
291 vfree_atomic(tsk->stack); in free_thread_stack()
296 __free_pages(virt_to_page(tsk->stack), THREAD_SIZE_ORDER); in free_thread_stack()
301 static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, in alloc_thread_stack_node() argument
307 tsk->stack = stack; in alloc_thread_stack_node()
311 static void free_thread_stack(struct task_struct *tsk) in free_thread_stack() argument
313 kmem_cache_free(thread_stack_cache, tsk->stack); in free_thread_stack()
377 static void account_kernel_stack(struct task_struct *tsk, int account) in account_kernel_stack() argument
379 void *stack = task_stack_page(tsk); in account_kernel_stack()
380 struct vm_struct *vm = task_stack_vm_area(tsk); in account_kernel_stack()
395 static int memcg_charge_kernel_stack(struct task_struct *tsk) in memcg_charge_kernel_stack() argument
398 struct vm_struct *vm = task_stack_vm_area(tsk); in memcg_charge_kernel_stack()
425 static void release_task_stack(struct task_struct *tsk) in release_task_stack() argument
427 if (WARN_ON(READ_ONCE(tsk->__state) != TASK_DEAD)) in release_task_stack()
430 account_kernel_stack(tsk, -1); in release_task_stack()
431 free_thread_stack(tsk); in release_task_stack()
432 tsk->stack = NULL; in release_task_stack()
434 tsk->stack_vm_area = NULL; in release_task_stack()
439 void put_task_stack(struct task_struct *tsk) in put_task_stack() argument
441 if (refcount_dec_and_test(&tsk->stack_refcount)) in put_task_stack()
442 release_task_stack(tsk); in put_task_stack()
446 void free_task(struct task_struct *tsk) in free_task() argument
448 release_user_cpus_ptr(tsk); in free_task()
449 scs_release(tsk); in free_task()
456 release_task_stack(tsk); in free_task()
462 WARN_ON_ONCE(refcount_read(&tsk->stack_refcount) != 0); in free_task()
464 rt_mutex_debug_task_free(tsk); in free_task()
465 ftrace_graph_exit_task(tsk); in free_task()
466 arch_release_task_struct(tsk); in free_task()
467 if (tsk->flags & PF_KTHREAD) in free_task()
468 free_kthread_struct(tsk); in free_task()
469 free_task_struct(tsk); in free_task()
742 void __put_task_struct(struct task_struct *tsk) in __put_task_struct() argument
744 WARN_ON(!tsk->exit_state); in __put_task_struct()
745 WARN_ON(refcount_read(&tsk->usage)); in __put_task_struct()
746 WARN_ON(tsk == current); in __put_task_struct()
748 io_uring_free(tsk); in __put_task_struct()
749 cgroup_free(tsk); in __put_task_struct()
750 task_numa_free(tsk, true); in __put_task_struct()
751 security_task_free(tsk); in __put_task_struct()
752 bpf_task_storage_free(tsk); in __put_task_struct()
753 exit_creds(tsk); in __put_task_struct()
754 delayacct_tsk_free(tsk); in __put_task_struct()
755 put_signal_struct(tsk->signal); in __put_task_struct()
756 sched_core_free(tsk); in __put_task_struct()
758 if (!profile_handoff_task(tsk)) in __put_task_struct()
759 free_task(tsk); in __put_task_struct()
865 void set_task_stack_end_magic(struct task_struct *tsk) in set_task_stack_end_magic() argument
869 stackend = end_of_stack(tsk); in set_task_stack_end_magic()
875 struct task_struct *tsk; in dup_task_struct() local
882 tsk = alloc_task_struct_node(node); in dup_task_struct()
883 if (!tsk) in dup_task_struct()
886 stack = alloc_thread_stack_node(tsk, node); in dup_task_struct()
890 if (memcg_charge_kernel_stack(tsk)) in dup_task_struct()
893 stack_vm_area = task_stack_vm_area(tsk); in dup_task_struct()
895 err = arch_dup_task_struct(tsk, orig); in dup_task_struct()
902 tsk->stack = stack; in dup_task_struct()
904 tsk->stack_vm_area = stack_vm_area; in dup_task_struct()
907 refcount_set(&tsk->stack_refcount, 1); in dup_task_struct()
913 err = scs_prepare(tsk, node); in dup_task_struct()
924 tsk->seccomp.filter = NULL; in dup_task_struct()
927 setup_thread_stack(tsk, orig); in dup_task_struct()
928 clear_user_return_notifier(tsk); in dup_task_struct()
929 clear_tsk_need_resched(tsk); in dup_task_struct()
930 set_task_stack_end_magic(tsk); in dup_task_struct()
931 clear_syscall_work_syscall_user_dispatch(tsk); in dup_task_struct()
934 tsk->stack_canary = get_random_canary(); in dup_task_struct()
937 tsk->cpus_ptr = &tsk->cpus_mask; in dup_task_struct()
938 dup_user_cpus_ptr(tsk, orig, node); in dup_task_struct()
944 refcount_set(&tsk->rcu_users, 2); in dup_task_struct()
946 refcount_set(&tsk->usage, 1); in dup_task_struct()
948 tsk->btrace_seq = 0; in dup_task_struct()
950 tsk->splice_pipe = NULL; in dup_task_struct()
951 tsk->task_frag.page = NULL; in dup_task_struct()
952 tsk->wake_q.next = NULL; in dup_task_struct()
953 tsk->pf_io_worker = NULL; in dup_task_struct()
955 account_kernel_stack(tsk, 1); in dup_task_struct()
957 kcov_task_init(tsk); in dup_task_struct()
958 kmap_local_fork(tsk); in dup_task_struct()
961 tsk->fail_nth = 0; in dup_task_struct()
965 tsk->throttle_queue = NULL; in dup_task_struct()
966 tsk->use_memdelay = 0; in dup_task_struct()
970 tsk->active_memcg = NULL; in dup_task_struct()
972 return tsk; in dup_task_struct()
975 free_thread_stack(tsk); in dup_task_struct()
977 free_task_struct(tsk); in dup_task_struct()
1333 static void complete_vfork_done(struct task_struct *tsk) in complete_vfork_done() argument
1337 task_lock(tsk); in complete_vfork_done()
1338 vfork = tsk->vfork_done; in complete_vfork_done()
1340 tsk->vfork_done = NULL; in complete_vfork_done()
1343 task_unlock(tsk); in complete_vfork_done()
1380 static void mm_release(struct task_struct *tsk, struct mm_struct *mm) in mm_release() argument
1382 uprobe_free_utask(tsk); in mm_release()
1385 deactivate_mm(tsk, mm); in mm_release()
1392 if (tsk->clear_child_tid) { in mm_release()
1398 put_user(0, tsk->clear_child_tid); in mm_release()
1399 do_futex(tsk->clear_child_tid, FUTEX_WAKE, in mm_release()
1402 tsk->clear_child_tid = NULL; in mm_release()
1409 if (tsk->vfork_done) in mm_release()
1410 complete_vfork_done(tsk); in mm_release()
1413 void exit_mm_release(struct task_struct *tsk, struct mm_struct *mm) in exit_mm_release() argument
1415 futex_exit_release(tsk); in exit_mm_release()
1416 mm_release(tsk, mm); in exit_mm_release()
1419 void exec_mm_release(struct task_struct *tsk, struct mm_struct *mm) in exec_mm_release() argument
1421 futex_exec_release(tsk); in exec_mm_release()
1422 mm_release(tsk, mm); in exec_mm_release()
1435 static struct mm_struct *dup_mm(struct task_struct *tsk, in dup_mm() argument
1447 if (!mm_init(mm, tsk, mm->user_ns)) in dup_mm()
1472 static int copy_mm(unsigned long clone_flags, struct task_struct *tsk) in copy_mm() argument
1476 tsk->min_flt = tsk->maj_flt = 0; in copy_mm()
1477 tsk->nvcsw = tsk->nivcsw = 0; in copy_mm()
1479 tsk->last_switch_count = tsk->nvcsw + tsk->nivcsw; in copy_mm()
1480 tsk->last_switch_time = 0; in copy_mm()
1483 tsk->mm = NULL; in copy_mm()
1484 tsk->active_mm = NULL; in copy_mm()
1496 vmacache_flush(tsk); in copy_mm()
1502 mm = dup_mm(tsk, current->mm); in copy_mm()
1507 tsk->mm = mm; in copy_mm()
1508 tsk->active_mm = mm; in copy_mm()
1512 static int copy_fs(unsigned long clone_flags, struct task_struct *tsk) in copy_fs() argument
1526 tsk->fs = copy_fs_struct(fs); in copy_fs()
1527 if (!tsk->fs) in copy_fs()
1532 static int copy_files(unsigned long clone_flags, struct task_struct *tsk) in copy_files() argument
1553 tsk->files = newf; in copy_files()
1559 static int copy_io(unsigned long clone_flags, struct task_struct *tsk) in copy_io() argument
1572 tsk->io_context = ioc; in copy_io()
1574 new_ioc = get_task_io_context(tsk, GFP_KERNEL, NUMA_NO_NODE); in copy_io()
1585 static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk) in copy_sighand() argument
1594 RCU_INIT_POINTER(tsk->sighand, sig); in copy_sighand()
1605 flush_signal_handlers(tsk, 0); in copy_sighand()
1634 static int copy_signal(unsigned long clone_flags, struct task_struct *tsk) in copy_signal() argument
1642 tsk->signal = sig; in copy_signal()
1651 sig->thread_head = (struct list_head)LIST_HEAD_INIT(tsk->thread_node); in copy_signal()
1652 tsk->thread_node = (struct list_head)LIST_HEAD_INIT(sig->thread_head); in copy_signal()
1655 sig->curr_target = tsk; in copy_signal()
1887 struct task_struct *tsk = container_of(rhp, struct task_struct, rcu); in __delayed_free_task() local
1889 free_task(tsk); in __delayed_free_task()
1892 static __always_inline void delayed_free_task(struct task_struct *tsk) in delayed_free_task() argument
1895 call_rcu(&tsk->rcu, __delayed_free_task); in delayed_free_task()
1897 free_task(tsk); in delayed_free_task()
1900 static void copy_oom_score_adj(u64 clone_flags, struct task_struct *tsk) in copy_oom_score_adj() argument
1903 if (!tsk->mm) in copy_oom_score_adj()
1912 set_bit(MMF_MULTIPROCESS, &tsk->mm->flags); in copy_oom_score_adj()
1914 tsk->signal->oom_score_adj = current->signal->oom_score_adj; in copy_oom_score_adj()
1915 tsk->signal->oom_score_adj_min = current->signal->oom_score_adj_min; in copy_oom_score_adj()