|  | config JBD | 
|  | tristate | 
|  | help | 
|  | This is a generic journalling layer for block devices.  It is | 
|  | 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 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 into the kernel, you | 
|  | cannot compile this code as a module. | 
|  |  | 
|  | config JBD_DEBUG | 
|  | bool "JBD (ext3) debugging support" | 
|  | depends on JBD && DEBUG_FS | 
|  | help | 
|  | If you are using the ext3 journaled file system (or potentially any | 
|  | other file system/device using JBD), 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/jbd/jbd-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/jbd/jbd-debug". |