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b6e3224fb2
This reverts commit e4c570c4cb, as
requested by Alexey:
"I think I gave a good enough arguments to not merge it.
To iterate:
* patch makes impossible to start using ext3 on EXT3_FS=n kernels
without reboot.
* this is done only for one pointer on task_struct"
None of config options which define task_struct are tristate directly
or effectively."
Requested-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
config JBD2
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tristate
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select CRC32
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help
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This is a generic journaling layer for block devices that support
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both 32-bit and 64-bit block numbers. It is currently used by
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the ext4 and OCFS2 filesystems, but it could also be used to add
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journal support to other file systems or block devices such
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as RAID or LVM.
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If you are using ext4 or OCFS2, you need to say Y here.
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If you are not using ext4 or OCFS2 then you will
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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 jbd2. If you are compiling ext4 or OCFS2 into the kernel,
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you cannot compile this code as a module.
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config JBD2_DEBUG
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bool "JBD2 (ext4) debugging support"
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depends on JBD2 && DEBUG_FS
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help
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If you are using the ext4 journaled file system (or
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potentially any other filesystem/device using JBD2), this option
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allows you to enable debugging output while the system is running,
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in order to help track down any problems you are having.
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By default, the 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/jbd2/jbd2-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/jbd2/jbd2-debug".
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