K 10
svn:author
V 7
asomers
K 8
svn:date
V 27
2016-04-27T15:38:56.914184Z
K 7
svn:log
V 1133
Make zfsd(8) listen to GEOM::physpath events

zfsd should use a newly arrived device for autoreplace by physical path
operations, even if that device's physical path isn't known when zfsd first
becomes aware of the device.

Background: When a new device arrives, devfs emits a CREATE event to devctl(4).
In parallel, enc(4) assigns a physical path to it, then geom(4) emits a
GEOM::physpath event.  It's possible that zfsd will see the CREATE event before
the physical path has been assigned.  Previously, we would ignore such a
device.  Now, zfsd(8) will listen to the GEOM::physpath event so it can use the
device for autoreplace-by-physical-path actions.

lib/libdevctl/event.cc:
lib/libdevctl/event.h:
lib/libdevctl/tests/libdevctl_unittest.cc
	Provide GeomEvent objects.

	Move
	DevfsEvent::{Devname,IsDiskDev,PhysicalPath,DevPath}
	into the base Event class.  Only DevName needs to be
	specialized in the derived classes.

cddl/sbin/zfsd/zfsd.cc
cddl/sbin/zfsd/zfsd_event.cc
cddl/sbin/zfsd/zfsd_event.h
	Listen for GEOM::physpath events.  When one arrives,
	ReEvaluate any matching caseFiles.

Sponsored by:	Spectra Logic Corp

END