linux-toradex.git/drivers/md/dm-cache-policy-internal.h, branch v4.0.1

dm cache: add remove_cblock method to policy interface

2013-11-11T16:37:50+00:00

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

dm cache policy: remove return from void policy_remove_mapping

2013-11-09T23:20:16+00:00

No need to return from a void function.

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

dm cache: policy change version from string to integer set

2013-03-20T17:21:27+00:00

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

dm: add cache target

2013-03-01T22:45:51+00:00

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