Enforcing quota for root user

[Dave Chinner]

On Tue, Nov 11, 2014 at 04:36:43PM -0600, Eric Sandeen wrote:
> On 11/11/14 4:32 PM, Dave Chinner wrote:
> > On Tue, Nov 11, 2014 at 11:00:25AM -0700, Chris Murphy wrote:
> >>
> >> On Nov 11, 2014, at 8:36 AM, Stan Hoeppner <stan at hardwarefreak.com> wrote:
> >>
> >>> On 11/11/2014 04:22 AM, Cyril Scetbon wrote:
> >>>> That's what I've read first, but someone showed me a sample where it works. He just told me he was using project quota. However, does it make sense ? 
> >>>> I've also read somewhere else that quota is never enforced for root user (id,gid=0) that's why I was testing it ....
> >>>
> >>> No, it doesn't make sense.  Why would you want to enforce quotas for root?
> >>
> >> A week ago I tried this and project quotas appear to apply to root.
> > 
> > By intent and design. Project quotas are not a user/group based
> > quota and so there is no exemption for any user.
> 
> However, at least according to the manpage, "project ID 0" is not
> enforced.  Granted, that is not a *user* exception.

Correct, and again by intent and design as project quotas are
optional.  i.e. there has to be some way of ensuring non-project ID
controlled files won't have quota enforcement applied to them. ;)

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com