From: mehta kiran <kiranmehta1981@yahoo.com>
Subject: Re: 2.4 vs 2.6
Date: Fri, 26 May 2006 01:19:05 -0700 (PDT)
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Cc: nfs@lists.sourceforge.net, Vijay Chauhan <kernel.vijay@gmail.com>
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To: Neil Brown <neilb@suse.de>
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Hi,

1. I noticed that 2.6 kernel is not aware of=20
   exportfs until client tries to mount. It only
   after this that proc nfsd filesystem shows this
   in list of exports due to upcall.
   Was 2.4 kernel aware of exportfs when the
   filesystem was first exported or mounted ?

2. Can you let me know advantage 2.6 export approach
   over 2.4 export approach ?=20
   Is this approach required due to=20
   security/authentication integration with NFS(say=20
   ip->name conversion for security ) ?

Thanks,
 kiran

--- Neil Brown <neilb@suse.de> wrote:

> On Thursday May 25, kernel.vijay@gmail.com wrote:
> > Hi,
> > Can anyone tell me what are the differences in the
> linux kernel 2.4 version
> > and 2.6 version related to NFS implementation
>=20
> How much detail do you want?
>=20
> Apart from adding NFSv4, the main difference is the
> authentication
> cache with support for up-calls.
> In 2.4, exportfs and mountd had to tell the kernel
> about any export
> information that it might need to know.
> In 2.6, the kernel can ask mountd, and mountd will
> provide information
> on-demand.
>=20
> NeilBrown
>=20
>=20
>
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>=20


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