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Grow: lack of head/tail space not fatal for RAID5 etc.
authorNeilBrown <neilb@suse.de>
Thu, 27 Jun 2013 00:20:34 +0000 (10:20 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 27 Jun 2013 02:58:16 +0000 (12:58 +1000)
commit6a23fb9d0d21e8fc7cb37f60e988c73ff31458e0
treef57f376e64d7be04f95b2e4caa7ce3f1a2d7983ctree | snapshot
parenta73b00811cf8b0c36bcf66c356951857fb37ce77commit | diff
Grow: lack of head/tail space not fatal for RAID5 etc.

For RAID10, we must have head/tail space for reshape.
For RAID4/5/6 we can use a spare or a backup file.

So make that distinction.

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