Joe Thornber 7c3d3f2a87 dm persistent data: add threshold callback to space map ...

Add a threshold callback function to the persistent data space map
interface for a subsequent patch to use.

dm-thin and dm-cache are interested in knowing when they're getting
low on metadata or data blocks.  This patch introduces a new method
for registering a callback against a threshold.

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

2013-05-10 14:37:20 +01:00

4.2 KiB

Raw Blame History

View Raw