Re: 2.4.17:Increase number of anonymous filesystems beyond 256?

["H. Peter Anvin" <hpa@zytor.com>]

Followup to:  <200201181212.g0ICCGq14563@bliss.uni-koblenz.de>
By author:    Rainer Krienke <krienke@uni-koblenz.de>
In newsgroup: linux.dev.kernel
> 
> Now think of a setup where no user directory mounts are configured but the 
> whole directory of a NFS server with many users is exported. Of course this 
> makes things easyer for the NFS-system since only one mount is needed but on 
> the client you need to create link trees or something similar so the user 
> still can access his home under /home/<user> and not something like 
> /home/server1/<user>. Moreover even if you create link trees when you issue 
> commands like pwd you see the real path (eg /server1/<user>) instead of the 
> logical (/home/<user>). Such paths are soon written into scripts etc, so that 
> if the user is moved sometime later  things will be broken. 
> You simply loose a layer of abstraction if you do not mount the users dir 
> directly. The only other solution I know of would be amd. Amd automatically 
> places a link. But since we come from the sun world, we simply uses suns 
> automounter and there were no problems up to now. 
> 

This can easily be resolved with vfsbinds.  Even Sun has a specific
syntax in their automounter to deal with this
(server:common_root:tail).  If I ever do another autofs v3 release I
will probably try to incorporate that via vfsbinds.

	-hpa
-- 
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