Heinz Mauelshagen 9dbd1aa3a8
dm raid: add reshaping support to the target ...
Add bool functions rs_is_recovering and rs_is_reshaping()
to test for ongoing recovery/reshaping respectively in order
to reject respective requests on ongoing ones.
Remove ctr array size check, because ti->len and array
sectors will differ during disk addition/removal reshape.
Use __is_raid10_near() rather than type string compare.
Introduce rs_check_reshape() and rs_start_reshape(),
use the former in the ctr to reject bogus rehsape requests
and the latter in preresume to actually start a reshape.
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com >
Signed-off-by: Mike Snitzer <snitzer@redhat.com >
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9dbd1aa3a8