Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / fs / jbd2 / Kconfig

diff --git a/kernel/fs/jbd2/Kconfig b/kernel/fs/jbd2/Kconfig
new file mode 100644 (file)
index 0000000..5a9f553
--- /dev/null
+++ b/kernel/fs/jbd2/Kconfig
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+config JBD2
+       tristate
+       select CRC32
+       select CRYPTO
+       select CRYPTO_CRC32C
+       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
+       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/module/jbd2/parameters/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/module/jbd2/parameters/jbd2_debug".