Valdis.Kletnieks@vt.edu wrote:
> > Is a new fs needed? Is it not possible to use an existing filesystem of
> > the user's choice for local caching?
>
> It's sort of like a loopback mount - you need a backing store which could be
> on an ext3 or ramfs or whatever, and you need the user-visible front end
> side of things, which manages the backing store and fetches blocks from
> AFS/NFS/etc.
Sort of, yes. Making it a filesystem is more a way of making it possible for
the kernel to associate a block device directly with the caching code. Rather
than adding an additional kernel interface beyond mount/swapon, you can just
use mount to add a block device to the cache.
Furthermore, it meand that I can provide virtual files along the lines of
/proc in the mountpoint that allow you to access status information, and maybe
also control the data cached.
David
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This archive was generated by hypermail 2b29 : Sat Feb 15 2003 - 22:00:33 EST