64 int get_vas_user_win_ref(struct vas_user_win_ref *task_ref)  in get_vas_user_win_ref()  argument
74 	task_ref->pid = get_task_pid(current, PIDTYPE_PID);  in get_vas_user_win_ref()
78 	task_ref->mm = get_task_mm(current);  in get_vas_user_win_ref()
79 	if (!task_ref->mm) {  in get_vas_user_win_ref()
80 		put_pid(task_ref->pid);  in get_vas_user_win_ref()
86 	mmgrab(task_ref->mm);  in get_vas_user_win_ref()
87 	mmput(task_ref->mm);  in get_vas_user_win_ref()
95 	task_ref->tgid = find_get_pid(task_tgid_vnr(current));  in get_vas_user_win_ref()
104 static bool ref_get_pid_and_task(struct vas_user_win_ref *task_ref,  in ref_get_pid_and_task()  argument
110 	pid = task_ref->pid;  in ref_get_pid_and_task()
113 		pid = task_ref->tgid;  in ref_get_pid_and_task()
147 		    struct vas_user_win_ref *task_ref)  in vas_update_csb()  argument
160 	if (WARN_ON_ONCE(!task_ref->mm))  in vas_update_csb()
196 	if (!ref_get_pid_and_task(task_ref, &tsk, &pid))  in vas_update_csb()
199 	kthread_use_mm(task_ref->mm);  in vas_update_csb()
211 	kthread_unuse_mm(task_ref->mm);  in vas_update_csb()
319 	mutex_init(&txwin->task_ref.mmap_mutex);  in coproc_ioc_tx_win_open()
423 	if (txwin->task_ref.vma != vmf->vma) {  in vas_mmap_fault()
429 	mutex_lock(&txwin->task_ref.mmap_mutex);  in vas_mmap_fault()
441 			mutex_unlock(&txwin->task_ref.mmap_mutex);  in vas_mmap_fault()
445 	mutex_unlock(&txwin->task_ref.mmap_mutex);  in vas_mmap_fault()
511 	mutex_lock(&txwin->task_ref.mmap_mutex);  in coproc_mmap()
539 	txwin->task_ref.vma = vma;  in coproc_mmap()
543 	mutex_unlock(&txwin->task_ref.mmap_mutex);  in coproc_mmap()