On 2011-12-20 06:08, EzioZhang wrote: 
> as subject,every block has its current state and when some operation is 
> done the state will be changed . In ram ,yaffs uses struct block_info to 
> record it,but if a thunder power loss happened,the state will loss,so 
> when restarts how to determine every block's state? i know yaffs uses 
> query_block_fn() to do this work ,but i'm not sure how to achieve that? 
> 
> 
> --- 
> Best wishes, 
> Ezio 
> 
> 
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How to determine block's when start while no information except flash data?