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Ameer Hamza
a8646a8186
During hotplug REMOVED events, devid matching fails for partition-based spares because devid information is not stored in pool config for partitioned devices. However, when devid is populated by the hotplug event, the original code skipped the search logic entirely, skipping vdev_guid matching and resulting in wrong device type detection that caused spares to be incorrectly identified as l2arc devices. Additionally, fix zfs_agent_iter_pool() to use the return value from zfs_agent_iter_vdev() instead of relying on search parameters, which was previously ignored. Also add pool_guid optimization to enable targeted pool searching when pool_guid is available. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Alexander Motin <mav@FreeBSD.org> Signed-off-by: Ameer Hamza <ahamza@ixsystems.com> Closes #17545