> +int vfs_rename(struct renamedata *rd)
> {
> int error;
> struct user_namespace *user_ns = &init_user_ns;
> + struct inode *old_dir = rd->old_dir, *new_dir = rd->new_dir;
> + struct dentry *old_dentry = rd->old_dentry,
> + *new_dentry = rd->new_dentry;
This looks weird. I'd just write the obvious:
struct dentry *old_dentry = rd->old_dentry;
struct dentry *new_dentry = rd->new_dentry;
