2 Commits

Author	SHA1	Message	Date
Mike Snitzer	4e7f506f64	dm cache: policy change version from string to integer set ... Separate dm cache policy version string into 3 unsigned numbers corresponding to major, minor and patchlevel and store them at the end of the on-disk metadata so we know which version of the policy generated the hints in case a future version wants to use them differently. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>	2013-03-20 17:21:27 +00:00
Joe Thornber	f283635281	dm cache: add mq policy ... A cache policy that uses a multiqueue ordered by recent hit count to select which blocks should be promoted and demoted. This is meant to be a general purpose policy. It prioritises reads over writes. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>	2013-03-01 22:45:51 +00:00