Re: Transparent compression in the FS

[Andreas Dilger]

On Oct 15, 2003  17:25 +0100, David Woodhouse wrote:
> On Tue, 2003-10-14 at 16:30 -0400, Josh Litherland wrote:
> > Are there any filesystems which implement the transparent compression
> > attribute ?  (chattr +c)
> 
> JFFS2 doesn't implement 'chattr +c', which is in fact an EXT2-private
> ioctl. But it does do transparent compression.

Actually, reiserfs also supports ext2-compatible SETFLAGS/GETFLAGS ioctls.
This allows us to use the same tools for lsattr and chattr instead of using
lsattr.reiserfs, etc.  Our Lustre distributed filesystem does the same.

Cheers, Andreas
--
Andreas Dilger
http://sourceforge.net/projects/ext2resize/
http://www-mddsp.enel.ucalgary.ca/People/adilger/

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