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Date: Fri, 8 Jan 2016 23:26:00 -0800
From: Christoph Hellwig <hch@infradead.org>
To: Eric Sandeen <sandeen@redhat.com>
Cc: fsdevel <linux-fsdevel@vger.kernel.org>, xfs@oss.sgi.com,
	Jan Kara <jack@suse.cz>
Subject: Re: [PATCH 0/4] quota: add new quotactl Q_XGETQUOTA2
Message-ID: <20160109072600.GA21636@infradead.org>
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On Fri, Jan 08, 2016 at 10:56:12AM -0600, Eric Sandeen wrote:
> This adds a new quotactl, Q_XGETQUOTA2.
> 
> Q_XGETQUOTA2 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 specified 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.

Please add a flags argument to Q_XGETQUOTA2, and then make the
new behavior the first flag.  Keep Q_XGETQUOTA behavior for the
flag-less case.  That way we get future etensibility for free.