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Re: Enforcing quota for root user

To: Chris Murphy <lists@xxxxxxxxxxxxxxxxx>
Subject: Re: Enforcing quota for root user
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Wed, 12 Nov 2014 11:09:27 +1100
Cc: Stan Hoeppner <stan@xxxxxxxxxxxxxxxxx>, "xfs@xxxxxxxxxxx" <xfs@xxxxxxxxxxx>
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <256C65FE-C757-4457-9F68-1F35FE37968D@xxxxxxxxxxxxxxxxx>
References: <67EDE14C-CCFB-4B42-8B78-FC6C813CD19A@xxxxxxx> <5461B333.8050609@xxxxxxxxxxxxxxxxx> <F7ACFF71-460D-40E7-999C-BFC8D232EA81@xxxxxxx> <54622CE8.7050508@xxxxxxxxxxxxxxxxx> <631A9090-F9FE-4B8E-88CD-1B30CAFC65B7@xxxxxxxxxxxxxxxxx> <20141111223203.GS28565@dastard> <256C65FE-C757-4457-9F68-1F35FE37968D@xxxxxxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Nov 11, 2014 at 04:35:31PM -0700, Chris Murphy wrote:
> 
> On Nov 11, 2014, at 3:32 PM, Dave Chinner <david@xxxxxxxxxxxxx>
> 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@xxxxxxxxxxxxxxxxx> 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.
> 
> Itâs what Iâd expect. I considered the documentation to be
> slightly misleading where is says soft and hard limits are never
> applied to the root user. The project quota does have a soft and
> hard limit. The soft limit, seemed not to apply to the root user -
> at least there was no soft limit warning anywhere when it was
> busted. But the hard limit definitely applied.
> 
> http://xfs.org/docs/xfsdocs-xml-dev/XFS_User_Guide/tmp/en-US/html/ch08s04.html

So write a patch to fix the documentation. Repo is here:

git://git.kernel.org/pub/scm/fs/xfs/xfsdocs-xml-dev.git

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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