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Re: [PATCH 4/8] xfs: use common code for quota statistics

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: [PATCH 4/8] xfs: use common code for quota statistics
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Mon, 20 Feb 2012 16:50:32 -0500
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <20120220213322.GC3592@dastard>
References: <20120220022815.018921977@xxxxxxxxxxxxxxxxxxxxxx> <20120220022904.060961294@xxxxxxxxxxxxxxxxxxxxxx> <20120220213322.GC3592@dastard>
User-agent: Mutt/1.5.21 (2010-09-15)
On Tue, Feb 21, 2012 at 08:33:22AM +1100, Dave Chinner wrote:
> On Sun, Feb 19, 2012 at 09:28:19PM -0500, Christoph Hellwig wrote:
> > Switch the quota code over to use the generic XFS statistics infrastructure.
> > While the legacy /proc/fs/xfs/xqm and /proc/fs/xfs/xqmstats interfaces are
> > preserved for now the statistics that still have a meaning with the current
> > code are now also available from /proc/fs/xfs/stats.
> > 
> > Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> Looks OK. Just one question/observation, though. This will make the
> quota proc files show up even even quota is not compiled in. Are
> there any applications out there that make use of the presence of
> these files to determine if quota is configured into the kernel or
> not?
> I think I just answered my own question - xfstests does exactly this
> proc file test in _require_quota(). So I think their presence needs
> to be conditional on CONFIG_XFS_QUOTA....

Ok, I'll respin it.  That also reminds me I didn't bother to test
without quotas, which I probably should do as well.

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