Guido van Rooij 00d76afede Use MAP_NOSYNC for vnodes without any links in their filesystem.
This is necessary for vmware: it does not use an anonymous mmap for
the memory of the virtual system. In stead it creates a temp file an
unlinks it. For a 50 MB file, this results in a ot of syncing
every 30 seconds.

Reviewed by:	Matthew Dillon <dillon@backplane.com>
2000-01-03 19:13:53 +00:00
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