dm cache: add cleaner policy
authorHeinz Mauelshagen <mauelshagen@redhat.com>
Fri, 1 Mar 2013 22:45:52 +0000 (22:45 +0000)
committerAlasdair G Kergon <agk@redhat.com>
Fri, 1 Mar 2013 22:45:52 +0000 (22:45 +0000)
A simple cache policy that writes back all data to the origin.

This is used to decommission a dm cache by emptying it.

Signed-off-by: Heinz Mauelshagen <mauelshagen@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

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