int yaffs_DoWriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset,
int nBytes, int writeThrough);
void yaffs_ResizeDown( yaffs_Object *obj, loff_t newSize);
void yaffs_SkipRestOfBlock(yaffs_Device *dev);
int yaffs_DoWriteDataToFile(yaffs_Object *in, const __u8 *buffer, loff_t offset,
int nBytes, int writeThrough);
void yaffs_ResizeDown( yaffs_Object *obj, loff_t newSize);
void yaffs_SkipRestOfBlock(yaffs_Device *dev);