K 10
svn:author
V 3
mdf
K 8
svn:date
V 27
2010-09-13T17:18:49.731977Z
K 7
svn:log
V 313
MFC r209053:

Add INVARIANTS checking that numfreebufs values are sane.  Also add a
per-buf flag to catch if a buf is double-counted in the free count.
This code was useful to debug an instance where a local patch at Isilon
was incorrectly managing numfreebufs for a new buf state.

Requested by:	Kostic Belousov

END