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Diffstat (limited to 'fs/jbd2/Kconfig')
| -rw-r--r-- | fs/jbd2/Kconfig | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/fs/jbd2/Kconfig b/fs/jbd2/Kconfig new file mode 100644 index 00000000000..f32f346f4b0 --- /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". |