Re: [PATCH] General filesystem cache

From: David Chow (
Date: Fri Jul 18 2003 - 23:41:29 EST

Is it a file system or a patch to the VFS? I love to see this patch. It
is quite useful for me. Is it available for 2.4?

David Chow

Linus Torvalds wrote:

>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
>>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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