From: Heinz Mauelshagen <heinzm@xxxxxxxxxx>
Export dm_disk symbol needed by the site link "blockdev"
(dm-repl-slink-blockdev.c) module to identify devices.
Allow for configuration and build of the remote replication target
with its registry, replication log and site link modules.
Signed-off-by: Heinz Mauelshagen <heinzm@xxxxxxxxxx>
Reviewed-by: Jon Brassow <jbrassow@xxxxxxxxxx>
Tested-by: Jon Brassow <jbrassow@xxxxxxxxxx>
---
drivers/md/Kconfig | 8 ++++++++
drivers/md/Makefile | 5 +++++
drivers/md/dm.c | 1 +
3 files changed, 14 insertions(+), 0 deletions(-)
diff --git linux-2.6.orig/drivers/md/Kconfig linux-2.6/drivers/md/Kconfig
index 2158377..f763ff2 100644
--- linux-2.6.orig/drivers/md/Kconfig
+++ linux-2.6/drivers/md/Kconfig
@@ -320,4 +320,12 @@ config DM_UEVENT
---help---
Generate udev events for DM events.
+config DM_REPLICATOR
+ tristate "Replication target (EXPERIMENTAL)"
+ depends on BLK_DEV_DM && EXPERIMENTAL
+ ---help---
+ A target that supports replication of local devices to remote sites.
+
+ If unsure, say N.
+
endif # MD
diff --git linux-2.6.orig/drivers/md/Makefile linux-2.6/drivers/md/Makefile
index e355e7f..b4389b8 100644
--- linux-2.6.orig/drivers/md/Makefile
+++ linux-2.6/drivers/md/Makefile
@@ -8,6 +8,7 @@ dm-multipath-y += dm-path-selector.o dm-mpath.o
dm-snapshot-y += dm-snap.o dm-exception-store.o dm-snap-transient.o \
dm-snap-persistent.o
dm-mirror-y += dm-raid1.o
+dm-replicator-objs := dm-repl.o
dm-log-userspace-y \
+= dm-log-userspace-base.o dm-log-userspace-transfer.o
md-mod-y += md.o bitmap.o
@@ -44,6 +45,10 @@ obj-$(CONFIG_DM_SNAPSHOT) += dm-snapshot.o
obj-$(CONFIG_DM_MIRROR) += dm-mirror.o 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_REPLICATOR) += dm-replicator.o \
+ dm-repl-log-ringbuffer.o \
+ dm-repl-slink-blockdev.o \
+ dm-log.o dm-registry.o
quiet_cmd_unroll = UNROLL $@
cmd_unroll = $(AWK) -f$(srctree)/$(src)/unroll.awk -vN=$(UNROLL) \
diff --git linux-2.6.orig/drivers/md/dm.c linux-2.6/drivers/md/dm.c
index 724efc6..901b95e 100644
--- linux-2.6.orig/drivers/md/dm.c
+++ linux-2.6/drivers/md/dm.c
@@ -2573,6 +2573,7 @@ struct gendisk *dm_disk(struct mapped_device *md)
{
return md->disk;
}
+EXPORT_SYMBOL_GPL(dm_disk);
struct kobject *dm_kobject(struct mapped_device *md)
{
--
1.6.2.5
--
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