linux-kernel - Re: [PATCH 3/3] xfs: cleanup quota check on disk blocks and inodes reservations

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Date:	Thu, 2 Feb 2012 11:07:26 -0500
From:	Christoph Hellwig <hch@...radead.org>
To:	Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>
Cc:	Ben Myers <bpm@....com>, Alex Elder <aelder@....com>,
	Christoph Hellwig <hch@....de>, Alex Elder <elder@...nel.org>,
	linux-kernel@...r.kernel.org, xfs@....sgi.com,
	xfs-masters@....sgi.com, yrl.pp-manager.tt@...achi.com
Subject: Re: [PATCH 3/3] xfs: cleanup quota check on disk blocks and inodes
 reservations

On Mon, Jan 23, 2012 at 12:45:43PM +0900, Mitsuo Hayasaka wrote:
> This patch is a cleanup of quota check on disk blocks and inodes
> reservations.
> 
> Signed-off-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com>
> Cc: Ben Myers <bpm@....com>
> Cc: Alex Elder <elder@...nel.org>
> Cc: Christoph Hellwig <hch@....de>
> ---
> 
>  fs/xfs/xfs_trans_dquot.c |   17 +++++++----------
>  1 files changed, 7 insertions(+), 10 deletions(-)
> 
> diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
> index c4ba366..5e6cd1c 100644
> --- a/fs/xfs/xfs_trans_dquot.c
> +++ b/fs/xfs/xfs_trans_dquot.c
> @@ -605,7 +605,7 @@ xfs_trans_dqresv(
>  	time_t		timer;
>  	xfs_qwarncnt_t	warns;
>  	xfs_qwarncnt_t	warnlimit;
> -	xfs_qcnt_t	count;
> +	xfs_qcnt_t	tcount;

Can you call this variable total_count to make it a bit more obvious?

> +			tcount = *resbcountp + nblks;
> +			if (hardlimit > 0ULL && tcount > hardlimit) {

Given that xfs_qcnt_t is unsigned what about transforming this into the
more readable:

			if (hardlimit && total_count > hardlimit)

and similar for the others?

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