12 Nov, 2013

1 commit

  • Implement policy_remove_cblock() and add remove_cblock method to the mq
    policy. These methods will be used by the following cache block
    invalidation patch which adds the 'invalidate_cblocks' message to the
    cache core.

    Also, update some comments in dm-cache-policy.h

    Signed-off-by: Joe Thornber
    Signed-off-by: Mike Snitzer

    Joe Thornber
     

10 Nov, 2013

1 commit


21 Mar, 2013

1 commit

  • 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
    Signed-off-by: Alasdair G Kergon

    Mike Snitzer
     

02 Mar, 2013

1 commit

  • Add a target that allows a fast device such as an SSD to be used as a
    cache for a slower device such as a disk.

    A plug-in architecture was chosen so that the decisions about which data
    to migrate and when are delegated to interchangeable tunable policy
    modules. The first general purpose module we have developed, called
    "mq" (multiqueue), follows in the next patch. Other modules are
    under development.

    Signed-off-by: Joe Thornber
    Signed-off-by: Heinz Mauelshagen
    Signed-off-by: Mike Snitzer
    Signed-off-by: Alasdair G Kergon

    Joe Thornber