[lvm-devel] [PATCH lvconvert 1/6] Add insert_layer_for_lv() / remove_layer_from_lv()

[Jun'ichi Nomura]

Add insert_layer_for_lv() / remove_layer_from_lv().

insert_layer_for_lv() simply creates an layer LV with specified suffix,
move all segments of the LV to the layer LV ,then maps linearly
from the LV to the layer LV.

remove_layer_from_lv() removes the top-level layer from the LV.
This might be too simple.

Thanks,
-- 
Jun'ichi Nomura, NEC Corporation of America
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