extern int zfs_remount(struct super_block *sb, int *flags, char *data);
extern int zfs_root(zfs_sb_t *zsb, struct inode **ipp);
extern int zfs_statvfs(struct dentry *dentry, struct kstatfs *statp);
extern int zfs_remount(struct super_block *sb, int *flags, char *data);
extern int zfs_root(zfs_sb_t *zsb, struct inode **ipp);
extern int zfs_statvfs(struct dentry *dentry, struct kstatfs *statp);