K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2020-09-18T20:53:40.588337Z
K 7
svn:log
V 244
amd64 pmap_pkru_same: prev_ppr was always NULL

Fix the logic so it works as it appears.

Reported by:	Coverity
Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon
Differential Revision:	D26211 (in progress, so omitting full URL)

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