1316 	if (!tsk->mm || !tsk->mm->uprobes_state.xol_area || !tsk->utask)  in xol_free_insn_slot()
1319 	slot_addr = tsk->utask->xol_vaddr;  in xol_free_insn_slot()
1339 		tsk->utask->xol_vaddr = 0;  in xol_free_insn_slot()
1371 	struct uprobe_task *utask = current->utask;  in uprobe_get_trap_addr()  local
1373 	if (unlikely(utask && utask->active_uprobe))  in uprobe_get_trap_addr()
1374 		return utask->vaddr;  in uprobe_get_trap_addr()
1385 	struct uprobe_task *utask = t->utask;  in uprobe_free_utask()  local
1388 	if (!utask)  in uprobe_free_utask()
1391 	if (utask->active_uprobe)  in uprobe_free_utask()
1392 		put_uprobe(utask->active_uprobe);  in uprobe_free_utask()
1394 	ri = utask->return_instances;  in uprobe_free_utask()
1404 	kfree(utask);  in uprobe_free_utask()
1405 	t->utask = NULL;  in uprobe_free_utask()
1418 	if (!current->utask)  in get_utask()
1419 		current->utask = kzalloc(sizeof(struct uprobe_task), GFP_KERNEL);  in get_utask()
1420 	return current->utask;  in get_utask()
1431 	t->utask = n_utask;  in dup_utask()
1462 	if (!__create_xol_area(current->utask->dup_xol_addr))  in dup_xol_work()
1471 	struct uprobe_task *utask = current->utask;  in uprobe_copy_process()  local
1475 	t->utask = NULL;  in uprobe_copy_process()
1477 	if (!utask || !utask->return_instances)  in uprobe_copy_process()
1483 	if (dup_utask(t, utask))  in uprobe_copy_process()
1494 	t->utask->dup_xol_addr = area->vaddr;  in uprobe_copy_process()
1495 	init_task_work(&t->utask->dup_xol_work, dup_xol_work);  in uprobe_copy_process()
1496 	task_work_add(t, &t->utask->dup_xol_work, true);  in uprobe_copy_process()
1521 	struct uprobe_task *utask;  in prepare_uretprobe()  local
1528 	utask = get_utask();  in prepare_uretprobe()
1529 	if (!utask)  in prepare_uretprobe()
1532 	if (utask->depth >= MAX_URETPROBE_DEPTH) {  in prepare_uretprobe()
1554 		if (!utask->return_instances) {  in prepare_uretprobe()
1565 		orig_ret_vaddr = utask->return_instances->orig_ret_vaddr;  in prepare_uretprobe()
1574 	utask->depth++;  in prepare_uretprobe()
1577 	ri->next = utask->return_instances;  in prepare_uretprobe()
1578 	utask->return_instances = ri;  in prepare_uretprobe()
1590 	struct uprobe_task *utask;  in pre_ssout()  local
1594 	utask = get_utask();  in pre_ssout()
1595 	if (!utask)  in pre_ssout()
1602 	utask->xol_vaddr = xol_vaddr;  in pre_ssout()
1603 	utask->vaddr = bp_vaddr;  in pre_ssout()
1611 	utask->active_uprobe = uprobe;  in pre_ssout()
1612 	utask->state = UTASK_SSTEP;  in pre_ssout()
1628 	struct uprobe_task *utask = t->utask;  in uprobe_deny_signal()  local
1630 	if (likely(!utask || !utask->active_uprobe))  in uprobe_deny_signal()
1633 	WARN_ON_ONCE(utask->state != UTASK_SSTEP);  in uprobe_deny_signal()
1641 			utask->state = UTASK_SSTEP_TRAPPED;  in uprobe_deny_signal()
1771 	struct uprobe_task *utask;  in handle_trampoline()  local
1775 	utask = current->utask;  in handle_trampoline()
1776 	if (!utask)  in handle_trampoline()
1779 	ri = utask->return_instances;  in handle_trampoline()
1799 		utask->depth--;  in handle_trampoline()
1806 	utask->return_instances = ri;  in handle_trampoline()
1890 static void handle_singlestep(struct uprobe_task *utask, struct pt_regs *regs)  in handle_singlestep()  argument
1895 	uprobe = utask->active_uprobe;  in handle_singlestep()
1896 	if (utask->state == UTASK_SSTEP_ACK)  in handle_singlestep()
1898 	else if (utask->state == UTASK_SSTEP_TRAPPED)  in handle_singlestep()
1904 	utask->active_uprobe = NULL;  in handle_singlestep()
1905 	utask->state = UTASK_RUNNING;  in handle_singlestep()
1931 	struct uprobe_task *utask;  in uprobe_notify_resume()  local
1935 	utask = current->utask;  in uprobe_notify_resume()
1936 	if (utask && utask->active_uprobe)  in uprobe_notify_resume()
1937 		handle_singlestep(utask, regs);  in uprobe_notify_resume()
1952 	    (!current->utask || !current->utask->return_instances))  in uprobe_pre_sstep_notifier()
1965 	struct uprobe_task *utask = current->utask;  in uprobe_post_sstep_notifier()  local
1967 	if (!current->mm || !utask || !utask->active_uprobe)  in uprobe_post_sstep_notifier()
1971 	utask->state = UTASK_SSTEP_ACK;  in uprobe_post_sstep_notifier()