[Drbd-dev] FLUSH/FUA documentation & code discrepancy
vgoyal at redhat.com
Tue Sep 11 16:41:02 CEST 2012
On Tue, Sep 11, 2012 at 10:25:01AM +0200, Lars Ellenberg wrote:
> "To enforce write-after-write dependencies, you *have* to drain the
> queue (do we have a generic interface available for that?),
> or at least wait for the completion of all the requests you
> (potentially) depend upon, before even submitting the dependent request.
I think you need to wait for all previous IOs (you are dependent on) to finish.
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