[lvm-devel] [PATCH 8/11] Allow "mirror" segment with only 1 area

[Jun'ichi Nomura]

Allow "mirror" segment with only 1 area.

As a transitional state, "mirror" segment with only 1 area makes sense
for keeping mirror specific parameters (log_lv, region_size) in metadata.

The segment handler already has a code to add "linear" target line
for table. (see MIRR_DISABLED)

Codes to get copy percent have to consider the segment is in-sync
if area_count is 1.

-- 
Jun'ichi Nomura, NEC Corporation of America
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