Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
---
drivers/md/Kconfig | 15 +++++++++++++++
drivers/md/Makefile | 1 +
drivers/md/md-cluster.c | 31 +++++++++++++++++++++++++++++++
3 files changed, 47 insertions(+)
create mode 100644 drivers/md/md-cluster.c
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 95ad936..55ea703 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -174,6 +174,21 @@ config MD_FAULTY
In unsure, say N.
+
+config MD_CLUSTER
+ tristate "Cluster Support for MD (EXPERIMENTAL)"
+ depends on BLK_DEV_MD
+ depends on DLM
+ ---help---
+ Clustering support for MD devices. This enables locking and
+ synchronization across multiple systems on the cluster, so all
+ nodes in the cluster can access the MD devices simultaneously.
+
+ This brings the redundancy (and uptime) of RAID levels across the
+ nodes of the cluster.
+
+ If unsure, say N.
+
source "drivers/md/bcache/Kconfig"
config BLK_DEV_DM_BUILTIN
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index f26d832..a3d7bf6 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_MD_RAID10) += raid10.o
obj-$(CONFIG_MD_RAID456) += raid456.o
obj-$(CONFIG_MD_MULTIPATH) += multipath.o
obj-$(CONFIG_MD_FAULTY) += faulty.o
+obj-$(CONFIG_MD_CLUSTER) += md-cluster.o
obj-$(CONFIG_BCACHE) += bcache/
obj-$(CONFIG_BLK_DEV_MD) += md-mod.o
obj-$(CONFIG_BLK_DEV_DM) += dm-mod.o
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
new file mode 100644
index 0000000..6f21bba
--- /dev/null
+++ b/drivers/md/md-cluster.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2014, SUSE
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * (for example /usr/src/linux/COPYING); if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+#include <linux/module.h>
+
+static int __init cluster_init(void)
+{
+ pr_info("Registering Cluster MD functions\n");
+ return 0;
+}
+
+static void cluster_exit(void)
+{
+}
+
+module_init(cluster_init);
+module_exit(cluster_exit);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Clustering support for MD");
+
--
2.1.2
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