yaffs2使用中碰到一个小问题

发布于 2013-01-23 11:15:25 浏览：3496 订阅该版

打好补丁生成的dfs_yaffs2.c中的
```
static int dfs_yaffs_statfs(struct dfs_filesystem* fs,
                     struct statfs *buf)
{
	struct rt_mtd_nand_device * mtd = RT_MTD_NAND_DEVICE(fs->dev_id);

RT_ASSERT(mtd != RT_NULL);

buf->f_bsize = mtd->page_size;
	buf->f_blocks = (mtd->block_size)/(mtd->page_size)*
	                (mtd->block_start - mtd->block_end + 1);       //此句中的block_size
	buf->f_bfree = yaffs_freespace(fs->path) / mtd->page_size;

return 0;
}```
以及yaffs_nandcfg.c文件中的
```void yaffs_config(ynandif_Geometry * g, struct rt_mtd_nand_device * dev)
{
	rt_memset(g,0,sizeof(ynandif_Geometry));

g->start_block   = dev->block_start;
	g->end_block     = dev->block_end;
	g->dataSize      = dev->page_size;
	g->spareSize     = dev->oob_size;
	g->pagesPerBlock = dev->block_size / dev->page_size;         //此句中的block_size
        略……
}```

struct rt_mtd_nand_device这个结构体是在mtd_nand.h文件中定义的，原型如下：
```
struct rt_mtd_nand_device
{
	struct rt_device parent;

rt_uint16_t page_size;			/* The Page size in the flash */
	rt_uint16_t oob_size;			/* Out of bank size */	
	rt_uint16_t oob_free;           /* the free area in oob that flash driver not use */
	rt_uint16_t plane_num; 			/* the number of plane in the NAND Flash */

rt_uint32_t pages_per_block;    /* The number of page a block */
        rt_uint16_t block_total;

rt_uint32_t block_start;		/* The start of available block*/
	rt_uint32_t block_end;			/* The end of available block */

/* operations interface */
	const struct rt_mtd_nand_driver_ops* ops;
};```

请问是否此结构体中的 block_total  就是 上面使用的block_size呢？ 还是我引用的文件不对，不是mtd_nand.h文件。
是否该把dfs_yaffs2.c 和 yaffs_nandcfg.c 中的block_size改为block_total?