Re: [uml-devel] A quick humfs HOWTO

[BlaisorBlade <blaisorblade_spam@yahoo.it>]

Alle 10:43, giovedì 8 aprile 2004, Henrik Nordstrom ha scritto:
> On Thu, 8 Apr 2004, Nuno Silva wrote:
> > In the meanwhile I'm thinking about this system and it seems that this
> > will eat lots of inodes because every file will be present twice in the
> > [host] filesystem with the metadata version using only a few bytes.
>
> Indeed, so the host better use a filesystem which can handle this
> efficiently such as reiserfs if you plan on very large filesystems.

Actually, Reiser4 will even be more efficent: first because of the FS itself, 
second because we could then use sys_reiser4. It's a syscall designed for 
reading little amounts of data from little files, without opening a fd, 
calling read() and closing it.

"Casually", it was designed to read little metadata files which store 
attributes. However I think that syscall could also be supported by other 
FS's - at least it is possible. However a compile-time option is worth of 
note.

-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729



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