Re: stackable layers in filesytem

Jan Pechanec (pechy@hp735.cvut.cz)
Fri, 9 Oct 1998 10:55:49 +0100 (MET)


On Thu, 8 Oct 1998, Mike A. Harris wrote:

*>On Wed, 7 Oct 1998, Jan Pechanec wrote:
*>
*>> please, don't you know whether the newest kernels do have
*>>"stackable layer support" for filesystem as e.g FreeBSD has?
*>
*>What exactly is stackable layer support? Have you investigated
*>loopback filesystems? This might be what you are looking for,
*>and has been supported in Linux for quite some time.
*>

Generaly, see:

http://www.isi.edu/~johnh/PAPERS/Heidemann91a.html
http://www.isi.edu/~johnh/PAPERS/index.html

in FreeBSD, see 'man mount_null'

Loopback fs is similar to nullfs in FreeBSD, but nullfs is just an
,,application'', you can develop layer that does things like compressing,
ciphering etc.

Jan.

*>
*>
*>
*>
*>--
*>Mike A. Harris - Computer Consultant - Linux advocate
*>
*>Linux software galore: http://freshmeat.net
*>
*>

_________________________________________________________________________
-
Jan P E C H A N E C - Computing Center, Czech Technical University -
______________-
-> Zikova 4, Praha 6, 166 35, Czech Republic /
-> http://www.civ.cvut.cz /
-> tel: +420 2 2435 2969 email: pechy@hp735.cvut.cz /
-> personal www - http://akat.civ.cvut.cz/pechy /
_____________________________________________________/

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/