On Wed, Jan 05, 2011 at 10:47:03PM +0100, Olaf van der Spek wrote:
>
> That was about soft updates. I'm not sure this is just as complex.
Then I invite you to implement it, and start discovering all of the
corner cases for yourself. :-) As I predicted, you're not going to
believe me when I tell you it's too hard.
> I was thinking, doesn't ext have this kind of dependency tracking already?
> It has to write the inode after writing the data, otherwise the inode
> might point to garbage.
No, it doesn't. We use journaling, and forced data writeouts, to
ensure consistency.
- Ted
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