Mark Murray 2589f2499d Nifty idea from Jeroen van Gelderen; don't call a routine to check if
we are using the /dev/zero device, just check a flag (supplied by
/dev/zero).
Reviewed by:	dfr
2000-06-25 09:44:32 +00:00
..
1999-08-28 01:08:13 +00:00