| Alexey Dobriyan | 6da0b38 | 2008-10-20 22:28:45 +0400 | [diff] [blame] | 1 | config JBD |
| 2 | tristate |
| Hiroshi Shimamoto | e4c570c | 2009-12-14 18:00:26 -0800 | [diff] [blame] | 3 | select FS_JOURNAL_INFO |
| Alexey Dobriyan | 6da0b38 | 2008-10-20 22:28:45 +0400 | [diff] [blame] | 4 | help |
| 5 | This is a generic journalling layer for block devices. It is |
| 6 | currently used by the ext3 file system, but it could also be |
| 7 | used to add journal support to other file systems or block |
| 8 | devices such as RAID or LVM. |
| 9 | |
| 10 | If you are using the ext3 file system, you need to say Y here. |
| 11 | If you are not using ext3 then you will probably want to say N. |
| 12 | |
| 13 | To compile this device as a module, choose M here: the module will be |
| 14 | called jbd. If you are compiling ext3 into the kernel, you |
| 15 | cannot compile this code as a module. |
| 16 | |
| 17 | config JBD_DEBUG |
| 18 | bool "JBD (ext3) debugging support" |
| 19 | depends on JBD && DEBUG_FS |
| 20 | help |
| 21 | If you are using the ext3 journaled file system (or potentially any |
| 22 | other file system/device using JBD), this option allows you to |
| 23 | enable debugging output while the system is running, in order to |
| 24 | help track down any problems you are having. By default the |
| 25 | debugging output will be turned off. |
| 26 | |
| 27 | If you select Y here, then you will be able to turn on debugging |
| 28 | with "echo N > /sys/kernel/debug/jbd/jbd-debug", where N is a |
| 29 | number between 1 and 5, the higher the number, the more debugging |
| 30 | output is generated. To turn debugging off again, do |
| 31 | "echo 0 > /sys/kernel/debug/jbd/jbd-debug". |