K 10
svn:author
V 4
jkim
K 8
svn:date
V 27
2017-06-15T02:39:33.718854Z
K 7
svn:log
V 247
Null pointer must be checked before use.  This fixes a regression introduced
in r318716.

Note it is a direct commit to stable/11 because head removed support for
idle page zeroing in r305362.

PR:		219994
Reviewed by:	markj
Approved by:	re (gjb)

END