Alasdair G Kergon 3791e2fc0e dm table: add singleton feature
Introduce the concept of a singleton table which contains exactly one target.

If a target type sets the DM_TARGET_SINGLETON feature bit device-mapper
will ensure that any table that includes that target contains no others.

The thin provisioning pool target uses this.

Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-10-31 20:19:00 +00:00
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2011-10-31 20:19:00 +00:00
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