K 10
svn:author
V 5
markj
K 8
svn:date
V 27
2017-08-01T17:50:28.124282Z
K 7
svn:log
V 471
Fix a witness assertion that fires when a lock type's class changes.

When all instances of a lock type are destroyed (for example, after a
module unload), the corresponding witness entry remains associated with
that lock type. In this case, we shouldn't panic if a new instance of the
lock type is created and its lock class does not match that recorded in the
witness entry.

Reviewed by:	jhb
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D11788

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