Re: Re: Access content of file via inodes

["nitin ahuja" <nitin2ahuja@xxxxxxxxxxxxx>]

Hi People,

>
> Looks like I managed to get the blocks that belong to > this particular inode.
> But when I try to zero b_data, the data still appears > in the hard disk device
> (verified using hexdump).

> Any idea why? It's been troubling me for days.
>

When you change anything in the memory region pointed by b_data field of struct buffer_head, it just makes changes in memory (in buffer cache, to be precise).
Did you commit these changes to disk by writing modified data of this block?

Nitin


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