Re: any FS with tree-based quota system?

[Chris Stromsoe <cbs@cts.ucla.edu>]

On Tue, 14 Feb 2006, Neil Brown wrote:
> On Monday February 13, cbs@cts.ucla.edu wrote:
> > I would like to be able to apply a quota to a particular tree, and have 
> > every file and directory in the path of that tree count toward that 
> > tree's quota usage.  I can prevent hard links across trees.
> >
> > I noticed that Neil Brown wrote some patches fairly early on in the 2.4 
> > cycle to do tree-based quota by UID.  The last patch-set I found was 
> > against 2.4.14 
> > (http://cgi.cse.unsw.edu.au/~neilb/patches/linux/2.4.14/) from late 
> > 2001, and did not come with patches to quota-tools.
>
> Following is my tree-quota patch updated to 2.6.14.3.  However it 
> doesn't do exactly what you claim to want.

Thanks.

> You still need to assign a uid to each user (the kernel needs some 
> number to use as an index into the quotas file).  But only the top-level 
> directory of each tree needs to be owned by the uid.  Files beneath the 
> top can be owned by anyone.

I'm hoping to modify your patch to use the inode at the root of the tree 
instead of a particular uid as the quota owner, so that setting a quota of 
50Mb on /some/location would charge usage for any children of 
/some/location to the inode of /some/location.

> I can dig-up a patch for quota-utils if you want to proceed with this.

I would appreciate that.



-Chris
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