e4c570c4cb
journal_info in task_struct is used in journaling file system only. So introduce CONFIG_FS_JOURNAL_INFO and make it conditional. Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: KONISHI Ryusuke <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
config JBD
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tristate
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select FS_JOURNAL_INFO
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help
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This is a generic journalling layer for block devices. It is
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currently used by the ext3 file system, but it could also be
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used to add journal support to other file systems or block
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devices such as RAID or LVM.
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If you are using the ext3 file system, you need to say Y here.
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If you are not using ext3 then you will probably want to say N.
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To compile this device as a module, choose M here: the module will be
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called jbd. If you are compiling ext3 into the kernel, you
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cannot compile this code as a module.
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config JBD_DEBUG
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bool "JBD (ext3) debugging support"
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depends on JBD && DEBUG_FS
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help
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If you are using the ext3 journaled file system (or potentially any
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other file system/device using JBD), this option allows you to
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enable debugging output while the system is running, in order to
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help track down any problems you are having. By default the
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debugging output will be turned off.
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If you select Y here, then you will be able to turn on debugging
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with "echo N > /sys/kernel/debug/jbd/jbd-debug", where N is a
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number between 1 and 5, the higher the number, the more debugging
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output is generated. To turn debugging off again, do
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"echo 0 > /sys/kernel/debug/jbd/jbd-debug".
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