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super1: update data_size when performing "revert-reshape".
authorNeilBrown <neilb@suse.de>
Wed, 24 Jul 2013 00:21:27 +0000 (10:21 +1000)
committerNeilBrown <neilb@suse.de>
Wed, 24 Jul 2013 00:21:27 +0000 (10:21 +1000)
commit419e0182849b93582290fe89cf760320f021285c
treec3212a7a611e0c65a69d2070e9efec9e18270113tree | snapshot
parent4441541f1f88b13b143d6e8e038a2e06cc159133commit | diff
super1: update data_size when performing "revert-reshape".

The "data_size" is with respect to "data_offset".  When the kernel
changes "data_offset" it modifies "data_size" to match - see
md_finish_reshape() in the kernel.

So when mdadm switches the data_offset for the new data_offset, it
must update data_size correspondingly.

Signed-off-by: NeilBrown <neilb@suse.de>
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