Re: [PATCH 2/7] quota: add new quotactl Q_XGETNEXTQUOTA

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On 1/26/16 11:52 AM, Jan Kara wrote:
> On Tue 26-01-16 09:00:25, Eric Sandeen wrote:
>> On 1/26/16 6:57 AM, Jan Kara wrote:
>>> On Fri 22-01-16 12:25:31, Eric Sandeen wrote:
>>>> Q_XGETNEXTQUOTA is exactly like Q_XGETQUOTA, except that it
>>>> will return quota information for the id equal to or greater
>>>> than the id requested.  In other words, if the requested id has
>>>> no quota, the command will return quota information for the
>>>> next higher id which does have a quota set.  If no higher id
>>>> has an active quota, -ESRCH is returned.
>>>
>>> Actually, is -ESRCH the right return value? It seems XFS traditionally
>>> returns -ENOENT when id doesn't exist. So that would look more logical to
>>> me.
>>
>> Hm, I was just going by the quotactl manpage, TBH, which says:
>>
>>        ESRCH          No disc quota is found for the indicated user.
>>
>>
>> But yes, you are right, it is ENOENT for xfs... argh.  I suppose the
>> quotactl manpage could use an update as well, then.
> 
> Yeah, so VFS quotas use ESRCH when quota for particular fs is not enabled
> (while ENOENT means device you passed in doesn't exist). So probably a
> solution that keeps XFS and VFS interfaces most selfconsistent is to return
> ENOENT from Q_XGETNEXTQUOTA and ESRCH from Q_GETNEXTQUOTA. I'll update your
> patches in this sense in the comments and changelogs. But XFS patches
> (which I don't carry) need updating the actual code...

*nod* thanks.  I'll just resend the XFS patches to the XFS list.

-Eric

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