Module Name:	src
Committed By:	thorpej
Date:		Fri May 21 23:08:00 UTC 1999

Modified Files:
	src/sys/arch/alpha/alpha: pmap.c
	src/sys/arch/alpha/include: pmap.h
Log Message:
Use the pool allocator for pv_entry structures.  Set a (patchable/config'able)
low water mark on the pool, so we have some chance of crawling along in
extreme memory shortages.