Pass an alternate location via module option for the zpool.cache file
used by the kernel. This allows us to write in-tree tests which do
not modify any out-of-tree files we do not own. This is just standard
good behavior for any test suite.
Additionally, refine the existing test case to explicity use the cache
file when looking for pools to import. And add a second test cache
which is forced to probe the disks for available pools to import.
This is an initial script for validation of zfs/zpool configuration.
For now there is only one test here to ensure that /etc/zfs/zpool.cache
is being updated properly from the kernel module. Additional tests
should be added, I believe Richardo said there was an existing test
suite out there which validated the behavior of many zpool/zfs commands.
It would be nice to add that as appropriate.
Ricardo M. Correia
Brian Behlendorf