61 	down_write(&umem->mm->mmap_sem);  in usnic_uiom_reg_account()
62 	umem->mm->locked_vm -= umem->diff;  in usnic_uiom_reg_account()
63 	up_write(&umem->mm->mmap_sem);  in usnic_uiom_reg_account()
64 	mmput(umem->mm);  in usnic_uiom_reg_account()
131 	down_write(&current->mm->mmap_sem);  in usnic_uiom_get_pages()
133 	locked = npages + current->mm->locked_vm;  in usnic_uiom_get_pages()
147 		ret = get_user_pages(current, current->mm, cur_base,  in usnic_uiom_get_pages()
190 		current->mm->locked_vm = locked;  in usnic_uiom_get_pages()
192 	up_write(&current->mm->mmap_sem);  in usnic_uiom_get_pages()
426 	struct mm_struct *mm;  in usnic_uiom_reg_release()  local
431 	mm = get_task_mm(current);  in usnic_uiom_reg_release()
432 	if (!mm) {  in usnic_uiom_reg_release()
448 		if (!down_write_trylock(&mm->mmap_sem)) {  in usnic_uiom_reg_release()
450 			uiomr->mm = mm;  in usnic_uiom_reg_release()
457 		down_write(&mm->mmap_sem);  in usnic_uiom_reg_release()
459 	current->mm->locked_vm -= diff;  in usnic_uiom_reg_release()
460 	up_write(&mm->mmap_sem);  in usnic_uiom_reg_release()
461 	mmput(mm);  in usnic_uiom_reg_release()