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| author | Heinz Mauelshagen <mauelshagen@redhat.com> | 2013-03-01 22:45:52 +0000 |
|---|---|---|
| committer | Alasdair G Kergon <agk@redhat.com> | 2013-03-01 22:45:52 +0000 |
| commit | 8735a8134786fa4ef36dee65d7fa779b99ba5fe3 (patch) | |
| tree | 0049cda7a855a2ba7d3e0c4628d983a8466fafbc /drivers/md/Kconfig | |
| parent | f283635281132af7bc7b90af3c105b8c0f73b9c7 (diff) | |
| download | linux-8735a8134786fa4ef36dee65d7fa779b99ba5fe3.tar.gz linux-8735a8134786fa4ef36dee65d7fa779b99ba5fe3.tar.bz2 linux-8735a8134786fa4ef36dee65d7fa779b99ba5fe3.zip | |
dm cache: add cleaner policy
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 <mauelshagen@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 1a96cbc7afda..e30b490055aa 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -291,6 +291,14 @@ config DM_CACHE_MQ This is meant to be a general purpose policy. It prioritises reads over writes. +config DM_CACHE_CLEANER + tristate "Cleaner Cache Policy (EXPERIMENTAL)" + depends on DM_CACHE + default y + ---help--- + A simple cache policy that writes back all data to the + origin. Used when decommissioning a dm-cache. + config DM_MIRROR tristate "Mirror target" depends on BLK_DEV_DM |