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Linux/fs/jbd/Kconfig

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

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