static int pid_numa_maps_open(struct inode *inode, struct file *file)
{
	return proc_maps_open(inode, file, &proc_pid_numa_maps_op,
				sizeof(struct numa_maps_private));
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.