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283a61dc2f
For "mirror" device-mapper targets: . Don't assign a logical mirrored device as a zipl target base. Instead, add one more branch in complete_physical_device() and proceed (in that new branch) to the physical disk participating in the mirrored target. This approach allowes to handle heterogeneous mirrors properly; . Provide a set of target parameters for each found physical disk by calling dm_dev_to_zipl_params() recursively; . Don't allow "nested mirrors" by checking/updating the fail_on_mirror global; . Remove the requirements on including block #0 to the mirrored device-mapper setup (no more actual); . Update comments. Signed-off-by: Eduard Shishkin <edward6@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>