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-rw-r--r--drivers/md/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 95ad936e6048..5bdedf6df153 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -285,6 +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