Re: [webmin-devel] [patch] quota v2 - vsfv0 not supported before 2.4.19 kernels

[Christophe C. <chr...@pu...>]

Jamie Cameron wrote:
> So is this the third quote format that Linux has used? Because I've seen
> those aquota.{user,group} files for a while now, certainly long before
> the 2.4.19 kernel.

Perhaps I'm wrong, but I think its only the second one,
dating back somewhere near the 2.4.13-ac8 kernel
http://lists.insecure.org/linux-kernel/2001/Dec/1892.html
and backported to the  2.4.0 kernels,
ftp://atrey.karlin.mff.cuni.cz/pub/local/jack/quota/v2.4/

On linuxhq.com a search on vfsv0 give results
for 2.4.19-rc3-ac2 (23-Jul-2003)
http://www.linuxhq.com/kernel/file/fs/quota_v2.c
and my std 2.4.18 (without quota patches) doesnt support vfsv0.
I dont know more, knowing only the old format until recently.

So I would say the vfsv0 (aquota) exists since patched 2.4 kernels,
and has been included in official kernel since 2.4.19.

> Would it be correct to say that the old format uses quota.{user,group},
> while the two new formats both user aquota.{user,group} ?

I cant say more that what I found in the quota-tools doc on sf.net
>>This format is called <tt/vfsv0/ in manpages and utilities and 
>>quotafiles are
 >>
 >>                 usually
 >>
>>called <tt/aquota.user/ and <tt/aquota.group/."

I remember seeing a thread on a kernel dev list saying
creating a new quota format would require a new filename
(I guess new format is vfsv0 and filename is aquota).

But I see a post from Jan Kara who wrote vfsv0 patches
at suse saying both formats would be supported (backward compat)
and included in 2.4 and 2.5 kernels.
http://search.luky.org/linux-kernel.2001/msg53249.html

 From this, I think its a good bet (but not certain) to say
the vfsv0 always uses aquota.* files

I cant say more, because I'm not a quota guru.
Hope it helps,

Christophe