K 10
svn:author
V 3
pfg
K 8
svn:date
V 27
2013-10-24T00:33:29.950953Z
K 7
svn:log
V 193
UFS2: make di_extsize unsigned.

di_extsize is the EA size and as such it should be unsigned.
Adjust related types for consistency.

Reviewed by:	mckusick (previous version)
MFC after:	3 weeks

END