[lvm-devel] [PATCH mirror 5/13] lv_mirror_count() to cope with stacked mirror

[Jun'ichi Nomura]

Change lv_mirror_count() to cope with stacked mirror with resync layers.

When adding mirrors to already mirrored LV, LVM2 will stack a temporary
mirror layer for resync.

So the lv_mirror_count() should take into account these things:
  - loop down through the mirror stack
  - exclude the resync LV from the count

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

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