Re: Fixing private mappings

[Rik van Riel <H.H.vanRiel@phys.uu.nl>]

On 23 Apr 1998, Eric W. Biederman wrote:

> A slightly more generic solution would be to introduce a new ``inode''
> that new it was a copy of the old inode but at a different offset.  If
> these new ``inodes'' would then have a linked list of their own, that
> could be followed for update purposes.  
>
> Extra inodes for files could also be extended to allow an offset at
> say 4TB or so into a file so that we can handle any sized file.
> Though obviously you can't cache it all at once, but you could cache
> any piece ;)  

This is a nice idea indeed. Maybe we could even use the
'extra inodes' idea to implement arbitrarily large files
on _any_ architecture...
When the on-disk maximum size is reached, just grab a
slave inode and start on part two.
The same for in-memory inodes, but there the maximum
size may be different.

Rik.
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