501 static ssize_t device_write(struct file *file, const char __user *buf,  in device_write()  argument
504 	struct dlm_user_proc *proc = file->private_data;  in device_write()
630 static int device_open(struct inode *inode, struct file *file)  in device_open()  argument
652 	file->private_data = proc;  in device_open()
657 static int device_close(struct inode *inode, struct file *file)  in device_close()  argument
659 	struct dlm_user_proc *proc = file->private_data;  in device_close()
675 	file->private_data = NULL;  in device_close()
776 static ssize_t device_read(struct file *file, char __user *buf, size_t count,  in device_read()  argument
779 	struct dlm_user_proc *proc = file->private_data;  in device_read()
811 		if (file->f_flags & O_NONBLOCK) {  in device_read()
888 static __poll_t device_poll(struct file *file, poll_table *wait)  in device_poll()  argument
890 	struct dlm_user_proc *proc = file->private_data;  in device_poll()
892 	poll_wait(file, &proc->wait, wait);  in device_poll()
923 static int ctl_device_open(struct inode *inode, struct file *file)  in ctl_device_open()  argument
925 	file->private_data = NULL;  in ctl_device_open()
929 static int ctl_device_close(struct inode *inode, struct file *file)  in ctl_device_close()  argument
934 static int monitor_device_open(struct inode *inode, struct file *file)  in monitor_device_open()  argument
941 static int monitor_device_close(struct inode *inode, struct file *file)  in monitor_device_close()  argument