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Create a separate module for clustering support 

Tagged as EXPERIMENTAL for now.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
hifive-unleashed-5.1
Goldwyn Rodrigues 2014-03-07 11:21:15 -06:00
parent 183bdf5106
commit 8e854e9cfd
3 changed files with 45 additions and 0 deletions
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16
drivers/md/Kconfig
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@ -175,6 +175,22 @@ config MD_FAULTY
In unsure, say N.
config MD_CLUSTER
tristate "Cluster Support for MD (EXPERIMENTAL)"
depends on BLK_DEV_MD
depends on DLM
default n
---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

1
drivers/md/Makefile
View File

@ -30,6 +30,7 @@ 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

28
drivers/md/md-cluster.c 100644
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@ -0,0 +1,28 @@
/*
* Copyright (C) 2015, 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.
*
*/
#include <linux/module.h>
static int __init cluster_init(void)
{
pr_warn("md-cluster: EXPERIMENTAL. Use with caution\n");
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");