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From: Chandan Babu R <chandanrlinux@gmail.com>
To: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: linux-xfs@vger.kernel.org
Subject: Re: [PATCH 14/18] xfs: refactor quota exceeded test
Date: Wed, 01 Jul 2020 15:49:06 +0530
Message-ID: <24519076.D1bH60dLAQ@garuda> (raw)
In-Reply-To: <159353180004.2864738.3571543752803090361.stgit@magnolia>

On Tuesday 30 June 2020 9:13:20 PM IST Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@oracle.com>
> 
> Refactor the open-coded test for whether or not we're over quota.
>

The changes look good to me.

Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>

> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
> ---
>  fs/xfs/xfs_dquot.c |   95 ++++++++++++++++------------------------------------
>  1 file changed, 30 insertions(+), 65 deletions(-)
> 
> 
> diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
> index 35a113d1b42b..ef34c82c28a0 100644
> --- a/fs/xfs/xfs_dquot.c
> +++ b/fs/xfs/xfs_dquot.c
> @@ -97,6 +97,33 @@ xfs_qm_adjust_dqlimits(
>  		xfs_dquot_set_prealloc_limits(dq);
>  }
>  
> +/*
> + * Determine if this quota counter is over either limit and set the quota
> + * timers as appropriate.
> + */
> +static inline void
> +xfs_qm_adjust_res_timer(
> +	struct xfs_dquot_res	*res,
> +	struct xfs_def_qres	*dres)
> +{
> +	bool			over;
> +
> +#ifdef DEBUG
> +	if (res->hardlimit)
> +		ASSERT(res->softlimit <= res->hardlimit);
> +#endif
> +
> +	over = (res->softlimit && res->count > res->softlimit) ||
> +	       (res->hardlimit && res->count > res->hardlimit);
> +
> +	if (over && res->timer == 0)
> +		res->timer = ktime_get_real_seconds() + dres->timelimit;
> +	else if (!over && res->timer != 0)
> +		res->timer = 0;
> +	else if (!over && res->timer == 0)
> +		res->warnings = 0;
> +}
> +
>  /*
>   * Check the limits and timers of a dquot and start or reset timers
>   * if necessary.
> @@ -121,71 +148,9 @@ xfs_qm_adjust_dqtimers(
>  	ASSERT(dq->q_id);
>  	defq = xfs_get_defquota(qi, xfs_dquot_type(dq));
>  
> -#ifdef DEBUG
> -	if (dq->q_blk.hardlimit)
> -		ASSERT(dq->q_blk.softlimit <= dq->q_blk.hardlimit);
> -	if (dq->q_ino.hardlimit)
> -		ASSERT(dq->q_ino.softlimit <= dq->q_ino.hardlimit);
> -	if (dq->q_rtb.hardlimit)
> -		ASSERT(dq->q_rtb.softlimit <= dq->q_rtb.hardlimit);
> -#endif
> -
> -	if (!dq->q_blk.timer) {
> -		if ((dq->q_blk.softlimit &&
> -		     (dq->q_blk.count > dq->q_blk.softlimit)) ||
> -		    (dq->q_blk.hardlimit &&
> -		     (dq->q_blk.count > dq->q_blk.hardlimit))) {
> -			dq->q_blk.timer = ktime_get_real_seconds() +
> -					defq->dfq_blk.timelimit;
> -		} else {
> -			dq->q_blk.warnings = 0;
> -		}
> -	} else {
> -		if ((!dq->q_blk.softlimit ||
> -		     (dq->q_blk.count <= dq->q_blk.softlimit)) &&
> -		    (!dq->q_blk.hardlimit ||
> -		    (dq->q_blk.count <= dq->q_blk.hardlimit))) {
> -			dq->q_blk.timer = 0;
> -		}
> -	}
> -
> -	if (!dq->q_ino.timer) {
> -		if ((dq->q_ino.softlimit &&
> -		     (dq->q_ino.count > dq->q_ino.softlimit)) ||
> -		    (dq->q_ino.hardlimit &&
> -		     (dq->q_ino.count > dq->q_ino.hardlimit))) {
> -			dq->q_ino.timer = ktime_get_real_seconds() +
> -					defq->dfq_ino.timelimit;
> -		} else {
> -			dq->q_ino.warnings = 0;
> -		}
> -	} else {
> -		if ((!dq->q_ino.softlimit ||
> -		     (dq->q_ino.count <= dq->q_ino.softlimit))  &&
> -		    (!dq->q_ino.hardlimit ||
> -		     (dq->q_ino.count <= dq->q_ino.hardlimit))) {
> -			dq->q_ino.timer = 0;
> -		}
> -	}
> -
> -	if (!dq->q_rtb.timer) {
> -		if ((dq->q_rtb.softlimit &&
> -		     (dq->q_rtb.count > dq->q_rtb.softlimit)) ||
> -		    (dq->q_rtb.hardlimit &&
> -		     (dq->q_rtb.count > dq->q_rtb.hardlimit))) {
> -			dq->q_rtb.timer = ktime_get_real_seconds() +
> -					defq->dfq_rtb.timelimit;
> -		} else {
> -			dq->q_rtb.warnings = 0;
> -		}
> -	} else {
> -		if ((!dq->q_rtb.softlimit ||
> -		     (dq->q_rtb.count <= dq->q_rtb.softlimit)) &&
> -		    (!dq->q_rtb.hardlimit ||
> -		     (dq->q_rtb.count <= dq->q_rtb.hardlimit))) {
> -			dq->q_rtb.timer = 0;
> -		}
> -	}
> +	xfs_qm_adjust_res_timer(&dq->q_blk, &defq->dfq_blk);
> +	xfs_qm_adjust_res_timer(&dq->q_ino, &defq->dfq_ino);
> +	xfs_qm_adjust_res_timer(&dq->q_rtb, &defq->dfq_rtb);
>  }
>  
>  /*
> 
> 


-- 
chandan




  parent reply index

Thread overview: 94+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30 15:41 [PATCH 00/18] xfs: remove xfs_disk_quot from incore dquot Darrick J. Wong
2020-06-30 15:41 ` [PATCH 01/18] xfs: clear XFS_DQ_FREEING if we can't lock the dquot buffer to flush Darrick J. Wong
2020-06-30 21:35   ` Allison Collins
2020-07-01  8:32   ` Chandan Babu R
2020-07-01  8:33   ` Christoph Hellwig
2020-07-01 22:42     ` Dave Chinner
2020-06-30 15:42 ` [PATCH 02/18] xfs: fix inode quota reservation checks Darrick J. Wong
2020-06-30 21:35   ` Allison Collins
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:34   ` Christoph Hellwig
2020-06-30 15:42 ` [PATCH 03/18] xfs: validate ondisk/incore dquot flags Darrick J. Wong
2020-06-30 21:35   ` Allison Collins
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:42   ` Christoph Hellwig
2020-07-01 18:25     ` Darrick J. Wong
2020-07-02  6:30       ` Christoph Hellwig
2020-07-02 15:13         ` Darrick J. Wong
2020-07-01 22:41   ` Dave Chinner
2020-07-01 23:16     ` Darrick J. Wong
2020-06-30 15:42 ` [PATCH 04/18] xfs: stop using q_core.d_flags in the quota code Darrick J. Wong
2020-07-01  8:34   ` Chandan Babu R
2020-07-01  8:47   ` Christoph Hellwig
2020-07-01 19:02     ` Darrick J. Wong
2020-07-01 20:15   ` Allison Collins
2020-07-01 22:50   ` Dave Chinner
2020-07-01 23:19     ` Darrick J. Wong
2020-07-01 23:44       ` Dave Chinner
2020-07-01 23:50         ` Darrick J. Wong
2020-07-03  0:58           ` Dave Chinner
2020-07-03 18:01             ` Darrick J. Wong
2020-06-30 15:42 ` [PATCH 05/18] xfs: stop using q_core.d_id " Darrick J. Wong
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:48   ` Christoph Hellwig
2020-07-01 20:16   ` Allison Collins
2020-06-30 15:42 ` [PATCH 06/18] xfs: use a per-resource struct for incore dquot data Darrick J. Wong
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:49   ` Christoph Hellwig
2020-07-01 20:16   ` Allison Collins
2020-06-30 15:42 ` [PATCH 07/18] xfs: stop using q_core limits in the quota code Darrick J. Wong
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:50   ` Christoph Hellwig
2020-07-01 20:16   ` Allison Collins
2020-07-01 23:01   ` Dave Chinner
2020-07-01 23:13     ` Darrick J. Wong
2020-07-01 23:33       ` Darrick J. Wong
2020-07-01 23:45         ` Dave Chinner
2020-06-30 15:42 ` [PATCH 08/18] xfs: stop using q_core counters " Darrick J. Wong
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:51   ` Christoph Hellwig
2020-07-01 23:20   ` Allison Collins
2020-06-30 15:42 ` [PATCH 09/18] xfs: stop using q_core warning " Darrick J. Wong
2020-07-01  8:33   ` Chandan Babu R
2020-07-01  8:51   ` Christoph Hellwig
2020-07-01 23:20   ` Allison Collins
2020-06-30 15:42 ` [PATCH 10/18] xfs: stop using q_core timers " Darrick J. Wong
2020-07-01  8:34   ` Chandan Babu R
2020-07-01  8:51   ` Christoph Hellwig
2020-07-01 23:20   ` Allison Collins
2020-06-30 15:43 ` [PATCH 11/18] xfs: remove qcore from incore dquots Darrick J. Wong
2020-07-01  8:34   ` Chandan Babu R
2020-07-01  8:52   ` Christoph Hellwig
2020-07-01 23:07   ` Dave Chinner
2020-07-01 23:14     ` Darrick J. Wong
2020-07-02  2:06   ` Allison Collins
2020-06-30 15:43 ` [PATCH 12/18] xfs: refactor default quota limits by resource Darrick J. Wong
2020-07-01  8:52   ` Chandan Babu R
2020-07-01  8:53   ` Christoph Hellwig
2020-07-01 23:30   ` Dave Chinner
2020-07-02  0:07     ` Darrick J. Wong
2020-07-02  2:06   ` Allison Collins
2020-06-30 15:43 ` [PATCH 13/18] xfs: remove unnecessary arguments from quota adjust functions Darrick J. Wong
2020-07-01  8:53   ` Christoph Hellwig
2020-07-01  8:58   ` Chandan Babu R
2020-07-02  2:06   ` Allison Collins
2020-06-30 15:43 ` [PATCH 14/18] xfs: refactor quota exceeded test Darrick J. Wong
2020-07-01  8:56   ` Christoph Hellwig
2020-07-01 17:51     ` Darrick J. Wong
2020-07-01 18:48       ` Eric Sandeen
2020-07-01 23:34       ` Dave Chinner
2020-07-01 10:19   ` Chandan Babu R [this message]
2020-07-02 18:57   ` Allison Collins
2020-06-30 15:43 ` [PATCH 15/18] xfs: refactor xfs_qm_scall_setqlim Darrick J. Wong
2020-07-01  8:56   ` Christoph Hellwig
2020-07-03  4:11   ` Allison Collins
2020-07-03 12:39   ` Chandan Babu R
2020-06-30 15:43 ` [PATCH 16/18] xfs: refactor xfs_trans_dqresv Darrick J. Wong
2020-07-03  4:11   ` Allison Collins
2020-07-03 13:00   ` Chandan Babu R
2020-06-30 15:43 ` [PATCH 17/18] xfs: refactor xfs_trans_apply_dquot_deltas Darrick J. Wong
2020-07-04 20:41   ` Allison Collins
2020-07-06 13:40   ` Chandan Babu R
2020-06-30 15:43 ` [PATCH 18/18] xfs: add more dquot tracepoints Darrick J. Wong
2020-07-04 20:41   ` Allison Collins
2020-07-06 13:42   ` Chandan Babu R

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