diff options
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 64 |
1 files changed, 43 insertions, 21 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index 4d8d90b4fe7..5bdedf6df15 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -174,8 +174,14 @@ config MD_FAULTY In unsure, say N. +source "drivers/md/bcache/Kconfig" + +config BLK_DEV_DM_BUILTIN + boolean + config BLK_DEV_DM tristate "Device mapper support" + select BLK_DEV_DM_BUILTIN ---help--- Device-mapper is a low level volume manager. It works by allowing people to specify mappings for ranges of logical sectors. Various @@ -236,6 +242,7 @@ config DM_CRYPT config DM_SNAPSHOT tristate "Snapshot target" depends on BLK_DEV_DM + select DM_BUFIO ---help--- Allow volume managers to take writable snapshots of a device. @@ -247,16 +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 thin provisioning block lock holders" - depends on STACKTRACE_SUPPORT && DM_THIN_PROVISIONING - select STACKTRACE - ---help--- - Enable this for messages that may help debug problems with the - block manager locking used by thin provisioning. - - If unsure, say N. - config DM_CACHE tristate "Cache target (EXPERIMENTAL)" depends on BLK_DEV_DM @@ -288,6 +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 @@ -295,6 +303,17 @@ config DM_MIRROR Allow volume managers to mirror logical volumes, also needed for live data migration tools such as 'pvmove'. +config DM_LOG_USERSPACE + tristate "Mirror userspace logging" + depends on DM_MIRROR && NET + select CONNECTOR + ---help--- + The userspace logging module provides a mechanism for + relaying the dm-dirty-log API to userspace. Log designs + which are more suited to userspace implementation (e.g. + shared storage logs) or experimental logs can be implemented + by leveraging this framework. + config DM_RAID tristate "RAID 1/4/5/6/10 target" depends on BLK_DEV_DM @@ -321,17 +340,6 @@ config DM_RAID RAID-5, RAID-6 distributes the syndromes across the drives in one of the available parity distribution methods. -config DM_LOG_USERSPACE - tristate "Mirror userspace logging" - depends on DM_MIRROR && NET - select CONNECTOR - ---help--- - The userspace logging module provides a mechanism for - relaying the dm-dirty-log API to userspace. Log designs - which are more suited to userspace implementation (e.g. - shared storage logs) or experimental logs can be implemented - by leveraging this framework. - config DM_ZERO tristate "Zero target" depends on BLK_DEV_DM @@ -410,4 +418,18 @@ config DM_VERITY If unsure, say N. +config DM_SWITCH + tristate "Switch target support (EXPERIMENTAL)" + depends on BLK_DEV_DM + ---help--- + This device-mapper target creates a device that supports an arbitrary + mapping of fixed-size regions of I/O across a fixed set of paths. + The path used for any specific region can be switched dynamically + by sending the target a message. + + To compile this code as a module, choose M here: the module will + be called dm-switch. + + If unsure, say N. + endif # MD |