hypfs_mkdir
extern struct dentry *hypfs_mkdir(struct dentry *parent, const char *name);
cpu_dir = hypfs_mkdir(cpus_dir, buffer);
lpar_dir = hypfs_mkdir(systems_dir, lpar_name);
cpus_dir = hypfs_mkdir(lpar_dir, "cpus");
cpu_dir = hypfs_mkdir(cpus_dir, buffer);
cpus_dir = hypfs_mkdir(parent_dir, "cpus");
systems_dir = hypfs_mkdir(root, "systems");
hyp_dir = hypfs_mkdir(root, "hyp");
dir = hypfs_mkdir(root, "cpus");
dir = hypfs_mkdir(root, "systems");
guest_dir = hypfs_mkdir(systems_dir, guest_name);
cpus_dir = hypfs_mkdir(guest_dir, "cpus");
mem_dir = hypfs_mkdir(guest_dir, "mem");
samples_dir = hypfs_mkdir(guest_dir, "samples");
dir = hypfs_mkdir(root, "hyp");