diff --git a/components/dfs/filesystems/uffs/dfs_uffs.c b/components/dfs/filesystems/uffs/dfs_uffs.c
index 18ab13f7eda448436af7ec94bc285a5377f83f63..1ed433dfa2eddb4df8e49a3c92348b7514e655ba 100644
--- a/components/dfs/filesystems/uffs/dfs_uffs.c
+++ b/components/dfs/filesystems/uffs/dfs_uffs.c
@@ -270,7 +270,7 @@ static int dfs_uffs_statfs(struct dfs_filesystem* fs,
 		return -DFS_STATUS_ENOENT;
 	
 	buf->f_bsize = mtd->page_size;
-	buf->f_blocks = (mtd->block_size)/(mtd->page_size)*
+	buf->f_blocks = mtd->pages_per_block*
 	                (mtd->block_end - mtd->block_start + 1);
 	buf->f_bfree = uffs_GetDeviceFree(&nand_part[index].uffs_dev) / mtd->page_size;
 	
diff --git a/components/dfs/filesystems/uffs/uffs_nandif.c b/components/dfs/filesystems/uffs/uffs_nandif.c
index d96403a76909b8bb676826cf198c02cfe8e4a4c9..1c9f5c88f23fb882dfbd27304b6bf15356313ac7 100644
--- a/components/dfs/filesystems/uffs/uffs_nandif.c
+++ b/components/dfs/filesystems/uffs/uffs_nandif.c
@@ -144,7 +144,7 @@ void uffs_setup_storage(
 
 //	attr->total_blocks = nand->end_block - nand->start_block + 1;/* no use */
 	attr->page_data_size = nand->page_size;		                 /* page data size */
-	attr->pages_per_block = nand->block_size / nand->page_size ; /* pages per block */
+	attr->pages_per_block = nand->pages_per_block;               /* pages per block */
 	attr->spare_size = nand->oob_size;		  	                 /* page spare size */
 	attr->block_status_offs = UFFS_BLOCK_MARK_SPARE_OFFSET;      /* block status offset is 5th byte in spare */
 	attr->ecc_opt = RT_CONFIG_UFFS_ECC_MODE;                     /* ecc option */