MFC rev 1.222:  Use atomic operations on runningbufspace.
MFC rev 1.222:
 Use atomic operations on runningbufspace.

 PR:             kern/84318
 Submitted by:   ade

Approved by:	re (kensmith)

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