Continue cleaning the queue instead of moving to the next queue or bailing out if acquisition of page lock caused page position in the queue to change.
Continue cleaning the queue instead of moving to the next queue or
bailing out if acquisition of page lock caused page position in the
queue to change.

Pointed out by:	alc

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase