File system query

Rohan Puri rohan.puri15 at
Tue Jun 18 01:54:32 EDT 2013

On Tue, Jun 18, 2013 at 12:19 AM, Dibyayan Chakraborty
<dib.coolguy at> wrote:
> Hi,
> I am working on a project which requires to implement a file system with
> journaling capability.
> While i found a number of simple implementations of file systems , they all
> were lacking the journaling capability.
> like or
> Now that i have implemented the formating procedures for the file system i
> think the next step would be to implement super_block operations , file
> operations for the VFS.
> I came to know that ext3/ext4 uses a jbd interface which implements the
> journaling capability in a file system independent way. But i could not
> find any documentation or details for using the jbd interface.
> So, any help which points out to the specific details of jbd interface or
> any comments which might be helpful in implementing the journaling
> capability is welcome.
> --
> With Regards
> Dibyayan Chakraborty
> _______________________________________________
> Kernelnewbies mailing list
> Kernelnewbies at
Hi Dibyayan,

Manish has written a nice article explaining jbd iinterfaces
implementation of ext3, explains in detail,


- Rohan

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