fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 out

Use fs/*/Kconfig more, which is good because everything related to one
filesystem is in one place and fs/Kconfig is quite fat.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/fs/jbd2/Kconfig b/fs/jbd2/Kconfig
new file mode 100644
index 000000000000..f32f346f4b0a
--- /dev/null
+++ b/fs/jbd2/Kconfig
@@ -0,0 +1,33 @@
+config JBD2
+        tristate
+        select CRC32
+        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 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 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 or OCFS2 into the kernel,
+          you cannot compile this code as a module.
+
+config JBD2_DEBUG
+        bool "JBD2 (ext4) debugging support"
+        depends on JBD2 && DEBUG_FS
+        help
+          If you are using the ext4 journaled file system (or
+          potentially any other filesystem/device using JBD2), this option
+          allows you to enable debugging output while the system is running,
+          in order to help track down any problems you are having.
+          By default, the debugging output will be turned off.
+
+          If you select Y here, then you will be able to turn on debugging
+          with "echo N > /sys/kernel/debug/jbd2/jbd2-debug", where N is a
+          number between 1 and 5. The higher the number, the more debugging
+          output is generated.  To turn debugging off again, do
+          "echo 0 > /sys/kernel/debug/jbd2/jbd2-debug".