ocfs2: Allow selection of cluster plug-ins.
ocfs2 now supports plug-ins for the classic O2CB stack as well as
userspace cluster stacks in conjunction with fs/dlm. This allows zero,
one, or both of the plug-ins to be selected in Kconfig. For local mounts
(non-clustered), neither plug-in is needed. Both plugins can be loaded
at one time, the runtime will select the one needed for the cluster
systme in use.
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
diff --git a/fs/Kconfig b/fs/Kconfig
index c509123..028ae38 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -444,6 +444,32 @@
For more information on OCFS2, see the file
<file:Documentation/filesystems/ocfs2.txt>.
+config OCFS2_FS_O2CB
+ tristate "O2CB Kernelspace Clustering"
+ depends on OCFS2_FS
+ default y
+ help
+ OCFS2 includes a simple kernelspace clustering package, the OCFS2
+ Cluster Base. It only requires a very small userspace component
+ to configure it. This comes with the standard ocfs2-tools package.
+ O2CB is limited to maintaining a cluster for OCFS2 file systems.
+ It cannot manage any other cluster applications.
+
+ It is always safe to say Y here, as the clustering method is
+ run-time selectable.
+
+config OCFS2_FS_USERSPACE_CLUSTER
+ tristate "OCFS2 Userspace Clustering"
+ depends on OCFS2_FS && DLM
+ default y
+ help
+ This option will allow OCFS2 to use userspace clustering services
+ in conjunction with the DLM in fs/dlm. If you are using a
+ userspace cluster manager, say Y here.
+
+ It is safe to say Y, as the clustering method is run-time
+ selectable.
+
config OCFS2_DEBUG_MASKLOG
bool "OCFS2 logging support"
depends on OCFS2_FS
diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile
index b8d6d02..f6956de 100644
--- a/fs/ocfs2/Makefile
+++ b/fs/ocfs2/Makefile
@@ -4,9 +4,10 @@
obj-$(CONFIG_OCFS2_FS) += \
ocfs2.o \
- ocfs2_stackglue.o \
- ocfs2_stack_o2cb.o \
- ocfs2_stack_user.o
+ ocfs2_stackglue.o
+
+obj-$(CONFIG_OCFS2_FS_O2CB) += ocfs2_stack_o2cb.o
+obj-$(CONFIG_OCFS2_FS_USERSPACE_CLUSTER) += ocfs2_stack_user.o
ocfs2-objs := \
alloc.o \
@@ -39,5 +40,6 @@
ocfs2_stack_o2cb-objs := stack_o2cb.o
ocfs2_stack_user-objs := stack_user.o
+# cluster/ is always needed when OCFS2_FS for masklog support
obj-$(CONFIG_OCFS2_FS) += cluster/
-obj-$(CONFIG_OCFS2_FS) += dlm/
+obj-$(CONFIG_OCFS2_FS_O2CB) += dlm/