[U-Boot] [PATCH]fix yaffs2 with inband-tags option, mtd_block_markbad & mtd_block_isbad parameter error.

[xu.xing1 at zte.com.cn]

when I use yaffs2 with inband-tags, the file always miss some part which 
filled with 0s. 

It prints 'yaffs: Chunk -1 not found zero instead' when ytrace is 0x800. 

I found out mtd_block_markbad & mtd_block_isbad parameter is wrong. 

In file fs\yaffs2\yaffs_guts.c, line 4658 to 4664? 

        /* Sort out space for inband tags, if required */ 
        if (dev->param.inband_tags) 
                dev->data_bytes_per_chunk = 
                    dev->param.total_bytes_per_chunk - 
                    sizeof(struct yaffs_packed_tags2_tags_only); 
        else 
                dev->data_bytes_per_chunk = 
dev->param.total_bytes_per_chunk; 

In inband_tags mode, data_bytes_per_chunk is not page aligned, 

so in file fs\yaffs2\yaffs_mtdif2.c, line 182 to 184 and line 201 to 203, 

        mtd_block_markbad(mtd, 
                               blockNo * dev->param.chunks_per_block * 
                               dev->data_bytes_per_chunk); 

        mtd_block_isbad(mtd, 
                             blockNo * dev->param.chunks_per_block * 
                             dev->data_bytes_per_chunk); 

the 2nd para is not correct but small. 

My patch followed, 

diff -uN a/fs/yaffs2/yaffs_mtdif2.c b/fs/yaffs2/yaffs_mtdif2.c 
--- a/fs/yaffs2/yaffs_mtdif2.c 
+++ b/fs/yaffs2/yaffs_mtdif2.c 
@@ -181,7 +181,7 @@ 
         retval = 
             mtd_block_markbad(mtd, 
                                blockNo * dev->param.chunks_per_block * 
-                               dev->data_bytes_per_chunk); 
+                               dev->param.total_bytes_per_chunk); 
  
         if (retval == 0) 
                 return YAFFS_OK; 
@@ -200,7 +200,7 @@ 
         retval = 
             mtd_block_isbad(mtd, 
                              blockNo * dev->param.chunks_per_block * 
-                             dev->data_bytes_per_chunk); 
+                             dev->param.total_bytes_per_chunk); 
  
         if (retval) { 
                 yaffs_trace(YAFFS_TRACE_MTD, "block is bad"); 
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