gvirstor final (hopefully)

Wed Apr 25 08:56:41 UTC 2007

With the recently implemented BIO delaying in gvirstor (that is, IO 
requests will be delayed unconditionally when there's not enough 
physical space in the virstor device, until more providers are added), I 
think gvirstor is ready to be committed to the CVS tree.

So, interested people are encouraged to test it once again, and see if 
they can break it in new and exciting ways  :)

gvirstor is available as a simple tarball at 
http://wiki.freebsd.org/gvirstor (read the README before trying) and in 
the Perforce (branch ivoras_gvirstor).

If all turns out well, I'll find someone to get it committed.

(gvirstor is a geom "overcommit" class - allows creation of virtual 
storage devices of arbitrary sizes backed by limited physical storage. 
It has been sponsored by Google in Google Summer of Code 2006.)

gvirstor currently works on both 6-STABLE and 7-CURRENT.

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