linux/drivers/md/Kconfig, branch v3.10.8

bcache: A block layer cache

2013-03-23T23:11:31Z

Does writethrough and writeback caching, handles unclean shutdown, and has a bunch of other nifty features motivated by real world usage. See the wiki at http://bcache.evilpiepirate.org for more. Signed-off-by: Kent Overstreet

Merge tag 'md-3.9' of git://neil.brown.name/md

2013-03-06T01:22:08Z

Pull md updates from NeilBrown: "Mostly little bugfixes. Only "feature" is a new RAID10 layout which slightly improves the number of sets of devices that can concurrently fail, without data loss." * tag 'md-3.9' of git://neil.brown.name/md: md: expedite metadata update when switching read-auto -> active md: remove CONFIG_MULTICORE_RAID456 md/raid1,raid10: fix deadlock with freeze_array() md/raid0: improve error message when converting RAID4-with-spares to RAID0 md: raid0: fix error return from create_stripe_zones. md: fix two bugs when attempting to resize RAID0 array. DM RAID: Add support for MD's RAID10 "far" and "offset" algorithms MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 2) MD RAID10: Improve redundancy for 'far' and 'offset' algorithms (part 1) MD RAID10: Minor non-functional code changes md: raid1,10: Handle REQ_WRITE_SAME flag in write bios md: protect against crash upon fsync on ro array

dm cache: add cleaner policy

2013-03-01T22:45:52Z

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 Signed-off-by: Joe Thornber Signed-off-by: Alasdair G Kergon

dm cache: add mq policy

2013-03-01T22:45:51Z

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 Signed-off-by: Alasdair G Kergon

dm: add cache target

2013-03-01T22:45:51Z

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

dm: remove CONFIG_EXPERIMENTAL

2013-03-01T22:45:46Z

Remove EXPERIMENTAL from all existing device-mapper targets. Signed-off-by: Alasdair G Kergon

md: remove CONFIG_MULTICORE_RAID456

2013-02-27T22:08:34Z

This doesn't seem to actually help and we have an alternate multi-threading approach waiting in the wings, so just get rid of this config option and associated code. As a bonus, we remove one use of CONFIG_EXPERIMENTAL Cc: Dan Williams Cc: Kees Cook Signed-off-by: NeilBrown

dm thin: move bio_prison code to separate module

2012-10-12T20:02:13Z

The bio prison code will be useful to other future DM targets so move it to a separate module. Signed-off-by: Mike Snitzer Signed-off-by: Joe Thornber Signed-off-by: Alasdair G Kergon

Merge tag 'md-3.6' of git://neil.brown.name/md

2012-08-02T18:34:40Z

Pull additional md update from NeilBrown: "This contains a few patches that depend on plugging changes in the block layer so needed to wait for those. It also contains a Kconfig fix for the new RAID10 support in dm-raid." * tag 'md-3.6' of git://neil.brown.name/md: md/dm-raid: DM_RAID should select MD_RAID10 md/raid1: submit IO from originating thread instead of md thread. raid5: raid5d handle stripe in batch way raid5: make_request use batch stripe release

md/dm-raid: DM_RAID should select MD_RAID10

2012-08-01T22:35:43Z

Now that DM_RAID supports raid10, it needs to select that code to ensure it is included. Cc: Jonathan Brassow Reported-by: Fengguang Wu Signed-off-by: NeilBrown