NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

pk
Tue Mar 25 15:04:04 PST 1997
Update of /cvsroot/src/sys/arch/sparc/sparc
In directory netbsd1:/var/slash-tmp/cvs-serv9962

Modified Files:
        pmap.c 
Log Message:
In pmap_remove(), check for an empty segment before calling one of the
helper functions. This cuts down the number of needless function calls
by approx. 80%, which has a healthy effect on the responsiveness of
a machine under heavy process creation/teardown loads.
The VM system seems to be fond of asking to delete page mappings
which aren't there..