extern int nilfs_construct_dsync_segment(struct super_block *, struct inode *,
loff_t, loff_t);
extern void nilfs_flush_segment(struct super_block *, ino_t);
-extern int nilfs_clean_segments(struct super_block *, void __user *);
+extern int nilfs_clean_segments(struct super_block *, struct nilfs_argv *,
+ void **);
extern int nilfs_segctor_add_segments_to_be_freed(struct nilfs_sc_info *,
__u64 *, size_t);