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

Philipp Reisner philipp.reisner at linbit.com
Wed Sep 5 10:44:55 CEST 2012

> Currently, FLUSH/FUA doesn't enforce any ordering requirement.  File
> systems are responsible for draining all writes which have to happen
> before and not issue further writes which should come after.

Ok. That is a clear statement. So we will do it that way.

The "Currently" in you statement, suggests that there might be something
more mighty in the future. Is that true?

We are looking for a method that allows us to submit some writes, then
an IO-barrier, and then further writes. 


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