[Drbd-dev] FLUSH/FUA documentation & code discrepancy

[Vivek Goyal]

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.

Thanks
Vivek