In message <[EMAIL PROTECTED]>, Ion Badulescu writes:
[...]
> I remember looking at what it would take to remove the wait_on()
> calls, but I don't remember the details. And with the almost
> daily race to keep up with the VFS changes that were happening
> at the time, this particular structural inefficiency was a just
> minor annoyance.
Thanks to in-person tips from Al as well as a certain Usenix tutorial, I
took enough notes on this (and other stacking-related optimizations, Ion)
that I believe I have a good understanding of how to do this in our stacking
templates. All Ion and I need are a few days of code-hackery, and a stable
VFS.
We may have to change the VFS if we find that's the only way to support a
chain (or tree! think fan-out) of callbacks, but we won't know until we try.
Erez.
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