diff options
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 9a06fe883766..5bdedf6df153 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -254,16 +254,6 @@ config DM_THIN_PROVISIONING ---help--- Provides thin provisioning and snapshots that share a data store. -config DM_DEBUG_BLOCK_STACK_TRACING - boolean "Keep stack trace of persistent data block lock holders" - depends on STACKTRACE_SUPPORT && DM_PERSISTENT_DATA - select STACKTRACE - ---help--- - Enable this for messages that may help debug problems with the - block manager locking used by thin provisioning and caching. - - If unsure, say N. - config DM_CACHE tristate "Cache target (EXPERIMENTAL)" depends on BLK_DEV_DM @@ -295,6 +285,17 @@ config DM_CACHE_CLEANER A simple cache policy that writes back all data to the origin. Used when decommissioning a dm-cache. +config DM_ERA + tristate "Era target (EXPERIMENTAL)" + depends on BLK_DEV_DM + default n + select DM_PERSISTENT_DATA + select DM_BIO_PRISON + ---help--- + dm-era tracks which parts of a block device are written to + over time. Useful for maintaining cache coherency when using + vendor snapshots. + config DM_MIRROR tristate "Mirror target" depends on BLK_DEV_DM |