On Wed, Jul 22, 2009 at 9:26 AM, Priyanka
Sharma<[email protected]> wrote:
> Thanks for suggestions.
>
> Eric,
> I thought to use aufs or unionfs patched linux kernel. So that I can
> directly use features of union mount. But I have to see inside the system
> calls for aufs/unionfs file system(how it works). I was thinking like if
> user gives MAFTER and MBEFORE as the flag in glendix mount I can pass
> unionfs/aufs as the filesystem in monut system call in linux. After that,
> normally what happens in linux.
> I haven't seen the proper code of aufs/unionfs. So,I will let you know as
> soon I come with the proper idea.
> And yeah I am reading documents about unionfs.
> Thanks for your help
> Please let me know If I am on wrong track.
>
I haven't looked closely at aufs, but unionfs is too heavyweight for
what you are trying to do (I suggested you read their papers because
they have been more diligent about publishing their attempts and
pitfalls). Plan 9 stackable binds should be completely implementable
inside the kernel without an assistive file system. It is possible
that this may be too difficult to complete within the terms of the
GSoC time frame though.
-eric
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