From: Benjamin Poirier <bpoirier@suse.com>
Subject: dm-raid45: split region hash and log, used by mirror and raid45
Patch-mainline: depends on dm-raid45 being upstream

raid45 depends on dm-region-hash and this dependency was not handled

Signed-off-by: Benjamin Poirier <bpoirier@suse.com>

---
 drivers/md/Kconfig  |    6 ++++++
 drivers/md/Makefile |    5 +++--
 2 files changed, 9 insertions(+), 2 deletions(-)

--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -272,6 +272,7 @@ config DM_DEBUG_SPACE_MAPS
 config DM_MIRROR
        tristate "Mirror target"
        depends on BLK_DEV_DM
+	select DM_REGION_HASH_LOG
        ---help---
          Allow volume managers to mirror logical volumes, also
          needed for live data migration tools such as 'pvmove'.
@@ -358,10 +359,15 @@ config DM_DELAY
 
 	If unsure, say N.
 
+config DM_REGION_HASH_LOG
+	tristate
+	default n
+
 config DM_RAID45
 	tristate "RAID 4/5 target (EXPERIMENTAL)"
 	depends on BLK_DEV_DM && EXPERIMENTAL
 	select ASYNC_XOR
+	select DM_REGION_HASH_LOG
 	---help---
 	A target that supports RAID4 and RAID5 mappings.
 
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -37,13 +37,14 @@ obj-$(CONFIG_DM_MULTIPATH_QL)	+= dm-queu
 obj-$(CONFIG_DM_MULTIPATH_ST)	+= dm-service-time.o
 obj-$(CONFIG_DM_SNAPSHOT)	+= dm-snapshot.o
 obj-$(CONFIG_DM_PERSISTENT_DATA)	+= persistent-data/
-obj-$(CONFIG_DM_MIRROR)		+= dm-mirror.o dm-log.o dm-region-hash.o
+obj-$(CONFIG_DM_MIRROR)		+= dm-mirror.o
+obj-$(CONFIG_DM_REGION_HASH_LOG)	+= dm-log.o dm-region-hash.o
 obj-$(CONFIG_DM_LOG_USERSPACE)	+= dm-log-userspace.o
 obj-$(CONFIG_DM_ZERO)		+= dm-zero.o
 obj-$(CONFIG_DM_RAID)	+= dm-raid.o
 obj-$(CONFIG_DM_THIN_PROVISIONING)	+= dm-thin-pool.o
 obj-$(CONFIG_DM_VERITY)		+= dm-verity.o
-obj-$(CONFIG_DM_RAID45)		+= dm-raid45.o dm-log.o dm-memcache.o
+obj-$(CONFIG_DM_RAID45)		+= dm-raid45.o dm-memcache.o
 
 ifeq ($(CONFIG_DM_UEVENT),y)
 dm-mod-objs			+= dm-uevent.o