K 10
svn:author
V 5
gibbs
K 8
svn:date
V 27
2011-08-16T20:29:03.286879Z
K 7
svn:log
V 1060
Modify the geom vdev provider's open behavior so that it will
only unconditionally open a device by path if the open is part
of a pool create, pool split, or device add operation, and a
search of all known geom provider's label data doesn't yield a
device with matching pool and vdev GUIDs.

This fixes a bug where the wrong disk could be associated with
a vdev's configuration data when device devfs paths change due to
insert and remove events.  While, ZFS detects this kind of coding
mixup and immediately flags the device as faulted before the
confusion can cause permanent data loss, a reboot was necessary
in order to resurrect the configuration.

sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c:
	Modify the open behavior to:
	    - Open by recorded device path with GUID matching
	    - If that fails, search all geom providers for a
	      device with matching GUIDs.
	    - If that fails and we are opening a "new to a
	      pool configuration" vdev, open by path.
	    - Otherwise fail the open.

Sponsored by:	Spectra Logic Corporation

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