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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>
This commit is contained in:
Joel Becker 2008-03-04 17:58:56 -08:00 committed by Mark Fasheh
parent b92eccdd28
commit 9341d22942
2 changed files with 32 additions and 4 deletions
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26
fs/Kconfig
View File

@ -444,6 +444,32 @@ config OCFS2_FS
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

10
fs/ocfs2/Makefile
View File

@ -4,9 +4,10 @@ EXTRA_CFLAGS += -DCATCH_BH_JBD_RACES
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-$(CONFIG_OCFS2_FS_USERSPACE_CLUSTER) += ocfs2_stack_user.o
ocfs2-objs := \
alloc.o \
@ -39,5 +40,6 @@ ocfs2_stackglue-objs := stackglue.o
ocfs2_stack_o2cb-objs := stack_o2cb.o
ocfs2_stack_user-objs := stack_user.o
# cluster/ is always needed when OCFS2_FS for masklog support
obj-$(CONFIG_OCFS2_FS) += cluster/
obj-$(CONFIG_OCFS2_FS) += dlm/
obj-$(CONFIG_OCFS2_FS_O2CB) += dlm/