ocfs2: Switch over to JBD2.

[linux-2.6] / fs / Kconfig

diff --git a/fs/Kconfig b/fs/Kconfig
index 40183d9..4be00d8 100644 (file)
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -170,8 +170,8 @@ config EXT4DEV_COMPAT
        help
          Starting with 2.6.28, the name of the ext4 filesystem was
          renamed from ext4dev to ext4.  Unfortunately there are some
-         lagecy userspace programs (such as klibc's fstype) have
-         "ext4dev" hardcoded.  
+         legacy userspace programs (such as klibc's fstype) have
+         "ext4dev" hardcoded.
 
          To enable backwards compatibility so that systems that are
          still expecting to mount ext4 filesystems using ext4dev,
@@ -220,17 +220,16 @@ config JBD
        tristate
        help
          This is a generic journalling layer for block devices.  It is
-         currently used by the ext3 and OCFS2 file systems, but it could
-         also be used to add journal support to other file systems or block
+         currently used by the ext3 file system, but it could also be
+         used to add journal support to other file systems or block
          devices such as RAID or LVM.
 
-         If you are using the ext3 or OCFS2 file systems, you need to
-         say Y here. If you are not using ext3 OCFS2 then you will probably
-         want to say N.
+         If you are using the ext3 file system, you need to say Y here.
+         If you are not using ext3 then you will probably want to say N.
 
          To compile this device as a module, choose M here: the module will be
-         called jbd.  If you are compiling ext3 or OCFS2 into the kernel,
-         you cannot compile this code as a module.
+         called jbd.  If you are compiling ext3 into the kernel, you
+         cannot compile this code as a module.
 
 config JBD_DEBUG
        bool "JBD (ext3) debugging support"
@@ -254,15 +253,16 @@ config JBD2
        help
          This is a generic journaling layer for block devices that support
          both 32-bit and 64-bit block numbers.  It is currently used by
-         the ext4 filesystem, but it could also be used to add
+         the ext4 and OCFS2 filesystems, but it could also be used to add
          journal support to other file systems or block devices such
          as RAID or LVM.
 
-         If you are using ext4, you need to say Y here. If you are not
-         using ext4 then you will probably want to say N.
+         If you are using ext4 or OCFS2, you need to say Y here.
+         If you are not using ext4 or OCFS2 then you will
+         probably want to say N.
 
          To compile this device as a module, choose M here. The module will be
-         called jbd2.  If you are compiling ext4 into the kernel,
+         called jbd2.  If you are compiling ext4 or OCFS2 into the kernel,
          you cannot compile this code as a module.
 
 config JBD2_DEBUG
@@ -440,7 +440,7 @@ config OCFS2_FS
        tristate "OCFS2 file system support"
        depends on NET && SYSFS
        select CONFIGFS_FS
-       select JBD
+       select JBD2
        select CRC32
        help
          OCFS2 is a general purpose extent based shared disk cluster file
@@ -511,6 +511,16 @@ config OCFS2_DEBUG_FS
          this option for debugging only as it is likely to decrease
          performance of the filesystem.
 
+config OCFS2_COMPAT_JBD
+       bool "Use JBD for compatibility"
+       depends on OCFS2_FS
+       default n
+       select JBD
+       help
+         The ocfs2 filesystem now uses JBD2 for its journalling.  JBD2
+         is backwards compatible with JBD.  It is safe to say N here.
+         However, if you really want to use the original JBD, say Y here.
+
 endif # BLOCK
 
 config DNOTIFY