I plan to build a variant of NFS on Linux. First, I made a client
by changing name symbols of NFS client and convert it as a loadable
module. Actually it is a NFS client with a different name, but I
could not mount it to a NFS server. It seems that the "mount" routine
could not tell it is a NFS like device and get the file handle from
the network, I read through the "strace" trace and drew the above
conclusion.
Can someone tell me how a "mount" for NFS works, how the system tell the
device is a network address and invoke RPC routine. What's the path of
related source code? How it is done to convert a NFS client from a loadable
module to compiled in kernel? Besides convenience, is there any other
consideration to move the NFS components inside kernel permanently?
regards,
Xiangping
-----Original Message-----
From: Alan Cox [mailto:alan@lxorguk.ukuu.org.uk]
Sent: Thursday, July 08, 1999 3:06 PM
To: pavel@atrey.karlin.mff.cuni.cz
Cc: alan@lxorguk.ukuu.org.uk; jgg@ualberta.ca;
Matthew.Wilcox@genedata.com; linux-kernel@vger.rutgers.edu
Subject: Re: Loop Devices over NFS don't work?
> > You could fall back to read/write in theory. There is an interesting
project
> > for you 8)
>
> Really? Think about deadlocks. Both nbd and loop are _evil_. Mount
> sparse file over loopback, then write to both filessytems in heavy way
> to see why. THIS IS NOT EASY.
Note the use of the word "interesting". I think it is quite doable. I don't
think it is at all trivial
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