K 10
svn:author
V 8
freqlabs
K 8
svn:date
V 27
2020-05-11T15:38:44.068758Z
K 7
svn:log
V 489
vfs_exports: Tighten bounds and assert consistency of numsecflavors

We know the value must be greater than 0 and less than MAXSECFLAVORS.

Reject values outside this range in the initial check in vfs_export and add KASSERTs
in the later consumers.

Also check that we are called with one of either MNT_DELEXPORT or MNT_EXPORTED set.

Reviewed by:	rmacklem
Approved by:	mav (mentor)
MFC after:	1 week
Sponsored by:	iXsystems, Inc.
Differential Revision:	https://reviews.freebsd.org/D24753

END