[LVM2 PATCH] (5/5) Remove pvmove special casing from lv_extend/allocate_extents

[Jun'ichi Nomura <j-nomura@ce.jp.nec.com>]

This patch removes pvmove special parameters from lv_extend() and
allocate_extents().

These special parameters are passed to them so that lv_extend()
can use them as the 1st area (i.e. master mirror).
However, without this parameter, pvmove can do allocate_extents()
and then call lv_add_segment() by itself.

We could further eliminate the special parameters from lv_add_segment()
by splitting the parts to something like lv_add_pvmove_segment(),
if it's preferred.

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