Re: [PATCH] General filesystem cache

From: Linus Torvalds (
Date: Fri Jul 18 2003 - 22:09:20 EST

On Fri, 18 Jul 2003, David Howells wrote:
> Here's a patch to add a quasi-filesystem ("CacheFS") that turns a block device
> into a general cache for any other filesystem that cares to make use of its
> facilities.
> This is primarily intended for use with my AFS filesystem, but I've designed
> it such that it needs to know nothing about the filesystem it's backing, and
> so it may also be useful for NFS, SMB and ISO9660 for example.

Ok. Sounds good. In fact, it's something I've wanted for a while, since
it's also potentially the solution to performance-critical things like
virtual filesystems based on revision control logic etc (traditionally
done with fake NFS servers).

I did a very very quick scan, and didn't see anything that raised my
hackles. But it's late in the 2.6.x game, and as a result I'm not going to
apply it until I get a lot of feedback from actual users too.


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