K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-09-28T08:35:05.536175Z
K 7
svn:log
V 357
cam/ata: Allow drivers to veto ATA disk attachment.

This eventhandler is mainly used by VMs, e.g. Hyper-V, whose disk
controllers share the disks with the simulated ATA controllers.

Submitted by:	Hongjiang Zhang <honzhan microsoft com>
Discussed with:	mav
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7693

END