extern const struct file_operations logfs_reg_fops;
extern const struct address_space_operations logfs_reg_aops;
int logfs_readpage(struct file *file, struct page *page);
-int logfs_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
- unsigned long arg);
+long logfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
int logfs_fsync(struct file *file, int datasync);
/* gc.c */