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CONFIG_JBD2

General informations

The Linux kernel configuration item CONFIG_JBD2 has multiple definitions:

found in fs/Kconfig

The configuration item CONFIG_JBD2:

Help text

This is a generic journaling layer for block devices that support both 32-bit and 64-bit block numbers. It is currently used by the ext4dev/ext4 filesystem, but it could also be used to add journal support to other file systems or block devices such as RAID or LVM.

If you are using ext4dev/ext4, you need to say Y here. If you are not using ext4dev/ext4 then you will probably want to say N.

To compile this device as a module, choose M here. The module will be called jbd2. If you are compiling ext4dev/ext4 into the kernel, you cannot compile this code as a module.

found in fs/jbd2/Kconfig

The configuration item CONFIG_JBD2:

Help text

This is a generic journaling layer for block devices that support both 32-bit and 64-bit block numbers. It is currently used by the ext4 and OCFS2 filesystems, but it could also be used to add journal support to other file systems or block devices such as RAID or LVM.

If you are using ext4 or OCFS2, you need to say Y here. If you are not using ext4 or OCFS2 then you will probably want to say N.

To compile this device as a module, choose M here. The module will be called jbd2. If you are compiling ext4 or OCFS2 into the kernel, you cannot compile this code as a module.

Hardware

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