Mark Johnston 081b4452a7 geli: Add a chicken switch for unmapped I/O
We have a report of a panic in GELI that appears to go away when
unmapped I/O is disabled.  Add a tunable to make such investigations
easier in the future.  No functional change intended.

PR:		262894
Reviewed by:	asomers
MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D34944
2022-04-18 17:55:24 -04:00
..
2022-03-12 11:55:52 -05:00