md: add 'recovery_start' per-device sysfs attribute

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Enable external metadata arrays to manage rebuild checkpointing via a
md/dev-XXX/recovery_start attribute which reflects rdev->recovery_offset

Also update resync_start_store to allow 'none' to be written, for
consistency.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

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Dan Williams 2009-12-12 21:17:12 -07:00 • committed by NeilBrown

parent 4e59ca7da0

commit 06e3c817b7

2 changed files with 63 additions and 5 deletions

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27

Documentation/md.txt

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41

drivers/md/md.c

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