Re: [RFC] block integrity: Fix write after checksum calculationproblem

[Joel Becker]

On Tue, Feb 22, 2011 at 11:45:44AM -0500, Martin K. Petersen wrote:
> Also, DIX is only the tip of the iceberg. Many other impending
> technologies feature checksums and require pages to be stable during I/O
> due to checksumming, encryption and so on.
> 
> The VM is already trying to do the right thing. We just need the
> relevant filesystems to catch up.

	ocfs2 handles stable metadata for its checksums when feeding
things to the journal.  If we're doing pagecache-based I/O, is the
pagecache going to help here for data?
 
Joel

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