From eec40579d84873dfb7021eb24c50360f073237c5 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Mon, 3 Mar 2014 10:23:15 -0500 Subject: dm: add era target dm-era is a target that behaves similar to the linear target. In addition it keeps track of which blocks were written within a user defined period of time called an 'era'. Each era target instance maintains the current era as a monotonically increasing 32-bit counter. Use cases include tracking changed blocks for backup software, and partially invalidating the contents of a cache to restore cache coherency after rolling back a vendor snapshot. dm-era is primarily expected to be paired with the dm-cache target. Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer --- drivers/md/Makefile | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/md/Makefile') diff --git a/drivers/md/Makefile b/drivers/md/Makefile index f26d832..a2da532 100644 --- a/drivers/md/Makefile +++ b/drivers/md/Makefile @@ -14,6 +14,7 @@ dm-thin-pool-y += dm-thin.o dm-thin-metadata.o dm-cache-y += dm-cache-target.o dm-cache-metadata.o dm-cache-policy.o dm-cache-mq-y += dm-cache-policy-mq.o dm-cache-cleaner-y += dm-cache-policy-cleaner.o +dm-era-y += dm-era-target.o md-mod-y += md.o bitmap.o raid456-y += raid5.o @@ -53,6 +54,7 @@ obj-$(CONFIG_DM_VERITY) += dm-verity.o obj-$(CONFIG_DM_CACHE) += dm-cache.o obj-$(CONFIG_DM_CACHE_MQ) += dm-cache-mq.o obj-$(CONFIG_DM_CACHE_CLEANER) += dm-cache-cleaner.o +obj-$(CONFIG_DM_ERA) += dm-era.o ifeq ($(CONFIG_DM_UEVENT),y) dm-mod-objs += dm-uevent.o -- cgit v1.1