Re: [PATCH] thread-safe fix for mod_proxy

[Roy T. Fielding]

downstream is the wrong name -- see how it is used in the HTTP spec.
Every data stream has an upstream (where data is coming from) and
a downstream (where data is going to be forwarded), so every connection
consists of two streams: an upstream and a downstream.  What you want
is to differentiate between the inbound direction (towards the origin
server) and the outbound direction (towards the user agent).

r->connection is the inbound conn_rec.

....Roy