[PATCH 5/8] sync_file: add support for a semaphore object

[Dave Airlie]

>
> The problem, as I see it, is that you are taking functionality away from
> sync_file. If you are wrapping them up inside a sync_file, we have a
> fair expectation that our code to handle sync_files will continue to
> work.

What code? there is no code existing that should be sharing sync objects
with semaphores backing them, and trying to use them as sync_files.

This is parallel functionality.

Dave.