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ec8f24b7fa
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
37 lines
1.4 KiB
Plaintext
37 lines
1.4 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config JBD2
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tristate
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select CRC32
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select CRYPTO
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select CRYPTO_CRC32C
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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
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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/module/jbd2/parameters/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/module/jbd2/parameters/jbd2_debug".
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