2010/10/14 Latchesar Ionkov <lucho@ionkov.net>

It can't be dealt with the current protocol. It doesn't guarantee that
Topen will be executed once Twalk is done. So can get Rerrors even if
Twalk succeeds.

It can be dealt with if the scheduling of the pipeline is done properly. You just have to eliminate the dependencies.

I can imagine having a few concurrent queues of "requests" in a client that contain items with dependencies, and running those queues in a pipelined way against a 9P server.

2010/10/13 Venkatesh Srinivas <me@acm.jhu.edu>:

>> 2) you can't pipeline requests if the result of one request depends on the
>> result of a previous. for instance: walk to file, open it, read it, close
>> it.
>> if the first operation fails, then subsequent operations will be invalid.
>
> Given careful allocation of FIDs by a client, that can be dealt with -
> operations on an invalid FID just get RErrors.
>
> -- vs
>