[NTLUG:Discuss] Documentation on adding new VFS to kernel

[Michael Hanrahan]

Hi,

I'm developing a Linux kernel on a x86 for a MIPS
based embedded system. I'm using RH 6.2 and the target
Linux is 2.2.4.

I have a file system on the target system that I want
to make mountable under Linux, so I was looking at
adding support for it via VFS. I do not think the code
for accessing the VFS will be a major problem but the
mechanics of getting into the kernel correctly is
causing me some problems.

What I'm currently doing is looking how the JFFS is
built into the kernel and trying to duplicate that.

What I was trying to find was a porting document.
Something on the lines of "to add a VFS, first edit
Config.in in /fs, then add a directory /fs/newfs which
should contain support for your VFS. Then edit files
x, y, z to ensure it builds correctly"

Does such a document exist?

I also have to add support for a PCI interface, which
will go in the arch/mips area, but a guide for what
files need changing to support PCI would be a help as
well.


Thanks in advance,
Mick


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