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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: Christoph Hellwig <hch@lst.de>,
	Allison Collins <allison.henderson@oracle.com>,
	Chandan Babu R <chandanrlinux@gmail.com>,
	linux-xfs@vger.kernel.org
Subject: [PATCH 21/26] xfs: refactor xfs_qm_scall_setqlim
Date: Tue, 14 Jul 2020 18:52:52 -0700	[thread overview]
Message-ID: <159477797200.3263162.3418529255328943040.stgit@magnolia> (raw)
In-Reply-To: <159477783164.3263162.2564345443708779029.stgit@magnolia>

From: Darrick J. Wong <darrick.wong@oracle.com>

Now that we can pass around quota resource and limit structures, clean
up the open-coded field setting in xfs_qm_scall_setqlim.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
---
 fs/xfs/xfs_qm_syscalls.c |  164 ++++++++++++++++++++++++++--------------------
 1 file changed, 93 insertions(+), 71 deletions(-)


diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index aea4be4da424..4f06d2dc18d0 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -436,6 +436,58 @@ xfs_qm_scall_quotaon(
 #define XFS_QC_MASK \
 	(QC_LIMIT_MASK | QC_TIMER_MASK | QC_WARNS_MASK)
 
+/*
+ * Adjust limits of this quota, and the defaults if passed in.  Returns true
+ * if the new limits made sense and were applied, false otherwise.
+ */
+static inline bool
+xfs_setqlim_limits(
+	struct xfs_mount	*mp,
+	struct xfs_dquot_res	*res,
+	struct xfs_quota_limits	*qlim,
+	xfs_qcnt_t		hard,
+	xfs_qcnt_t		soft,
+	const char		*tag)
+{
+	/* The hard limit can't be less than the soft limit. */
+	if (hard != 0 && hard < soft) {
+		xfs_debug(mp, "%shard %lld < %ssoft %lld", tag, hard, tag,
+				soft);
+		return false;
+	}
+
+	res->hardlimit = hard;
+	res->softlimit = soft;
+	if (qlim) {
+		qlim->hard = hard;
+		qlim->soft = soft;
+	}
+
+	return true;
+}
+
+static inline void
+xfs_setqlim_warns(
+	struct xfs_dquot_res	*res,
+	struct xfs_quota_limits	*qlim,
+	int			warns)
+{
+	res->warnings = warns;
+	if (qlim)
+		qlim->warn = warns;
+}
+
+static inline void
+xfs_setqlim_timer(
+	struct xfs_dquot_res	*res,
+	struct xfs_quota_limits	*qlim,
+	s64			timer)
+{
+	res->timer = timer;
+	if (qlim)
+		qlim->time = timer;
+}
+
 /*
  * Adjust quota limits, and start/stop timers accordingly.
  */
@@ -450,6 +502,8 @@ xfs_qm_scall_setqlim(
 	struct xfs_dquot	*dqp;
 	struct xfs_trans	*tp;
 	struct xfs_def_quota	*defq;
+	struct xfs_dquot_res	*res;
+	struct xfs_quota_limits	*qlim;
 	int			error;
 	xfs_qcnt_t		hard, soft;
 
@@ -489,102 +543,70 @@ xfs_qm_scall_setqlim(
 	xfs_trans_dqjoin(tp, dqp);
 
 	/*
+	 * Update quota limits, warnings, and timers, and the defaults
+	 * if we're touching id == 0.
+	 *
 	 * Make sure that hardlimits are >= soft limits before changing.
+	 *
+	 * Update warnings counter(s) if requested.
+	 *
+	 * Timelimits for the super user set the relative time the other users
+	 * can be over quota for this file system. If it is zero a default is
+	 * used.  Ditto for the default soft and hard limit values (already
+	 * done, above), and for warnings.
+	 *
+	 * For other IDs, userspace can bump out the grace period if over
+	 * the soft limit.
 	 */
+
+	/* Blocks on the data device. */
 	hard = (newlim->d_fieldmask & QC_SPC_HARD) ?
 		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_hardlimit) :
 			dqp->q_blk.hardlimit;
 	soft = (newlim->d_fieldmask & QC_SPC_SOFT) ?
 		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_spc_softlimit) :
 			dqp->q_blk.softlimit;
-	if (hard == 0 || hard >= soft) {
-		dqp->q_blk.hardlimit = hard;
-		dqp->q_blk.softlimit = soft;
+	res = &dqp->q_blk;
+	qlim = id == 0 ? &defq->blk : NULL;
+
+	if (xfs_setqlim_limits(mp, res, qlim, hard, soft, "blk"))
 		xfs_dquot_set_prealloc_limits(dqp);
-		if (id == 0) {
-			defq->blk.hard = hard;
-			defq->blk.soft = soft;
-		}
-	} else {
-		xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
-	}
+	if (newlim->d_fieldmask & QC_SPC_WARNS)
+		xfs_setqlim_warns(res, qlim, newlim->d_spc_warns);
+	if (newlim->d_fieldmask & QC_SPC_TIMER)
+		xfs_setqlim_timer(res, qlim, newlim->d_spc_timer);
+
+	/* Blocks on the realtime device. */
 	hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
 		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_hardlimit) :
 			dqp->q_rtb.hardlimit;
 	soft = (newlim->d_fieldmask & QC_RT_SPC_SOFT) ?
 		(xfs_qcnt_t) XFS_B_TO_FSB(mp, newlim->d_rt_spc_softlimit) :
 			dqp->q_rtb.softlimit;
-	if (hard == 0 || hard >= soft) {
-		dqp->q_rtb.hardlimit = hard;
-		dqp->q_rtb.softlimit = soft;
-		if (id == 0) {
-			defq->rtb.hard = hard;
-			defq->rtb.soft = soft;
-		}
-	} else {
-		xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
-	}
+	res = &dqp->q_rtb;
+	qlim = id == 0 ? &defq->rtb : NULL;
 
+	xfs_setqlim_limits(mp, res, qlim, hard, soft, "rtb");
+	if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
+		xfs_setqlim_warns(res, qlim, newlim->d_rt_spc_warns);
+	if (newlim->d_fieldmask & QC_RT_SPC_TIMER)
+		xfs_setqlim_timer(res, qlim, newlim->d_rt_spc_timer);
+
+	/* Inodes */
 	hard = (newlim->d_fieldmask & QC_INO_HARD) ?
 		(xfs_qcnt_t) newlim->d_ino_hardlimit :
 			dqp->q_ino.hardlimit;
 	soft = (newlim->d_fieldmask & QC_INO_SOFT) ?
 		(xfs_qcnt_t) newlim->d_ino_softlimit :
 			dqp->q_ino.softlimit;
-	if (hard == 0 || hard >= soft) {
-		dqp->q_ino.hardlimit = hard;
-		dqp->q_ino.softlimit = soft;
-		if (id == 0) {
-			defq->ino.hard = hard;
-			defq->ino.soft = soft;
-		}
-	} else {
-		xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft);
-	}
+	res = &dqp->q_ino;
+	qlim = id == 0 ? &defq->ino : NULL;
 
-	/*
-	 * Update warnings counter(s) if requested
-	 */
-	if (newlim->d_fieldmask & QC_SPC_WARNS)
-		dqp->q_blk.warnings = newlim->d_spc_warns;
+	xfs_setqlim_limits(mp, res, qlim, hard, soft, "ino");
 	if (newlim->d_fieldmask & QC_INO_WARNS)
-		dqp->q_ino.warnings = newlim->d_ino_warns;
-	if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
-		dqp->q_rtb.warnings = newlim->d_rt_spc_warns;
-
-	if (id == 0) {
-		if (newlim->d_fieldmask & QC_SPC_WARNS)
-			defq->blk.warn = newlim->d_spc_warns;
-		if (newlim->d_fieldmask & QC_INO_WARNS)
-			defq->ino.warn = newlim->d_ino_warns;
-		if (newlim->d_fieldmask & QC_RT_SPC_WARNS)
-			defq->rtb.warn = newlim->d_rt_spc_warns;
-	}
-
-	/*
-	 * Timelimits for the super user set the relative time the other users
-	 * can be over quota for this file system. If it is zero a default is
-	 * used.  Ditto for the default soft and hard limit values (already
-	 * done, above), and for warnings.
-	 *
-	 * For other IDs, userspace can bump out the grace period if over
-	 * the soft limit.
-	 */
-	if (newlim->d_fieldmask & QC_SPC_TIMER)
-		dqp->q_blk.timer = newlim->d_spc_timer;
+		xfs_setqlim_warns(res, qlim, newlim->d_ino_warns);
 	if (newlim->d_fieldmask & QC_INO_TIMER)
-		dqp->q_ino.timer = newlim->d_ino_timer;
-	if (newlim->d_fieldmask & QC_RT_SPC_TIMER)
-		dqp->q_rtb.timer = newlim->d_rt_spc_timer;
-
-	if (id == 0) {
-		if (newlim->d_fieldmask & QC_SPC_TIMER)
-			defq->blk.time = newlim->d_spc_timer;
-		if (newlim->d_fieldmask & QC_INO_TIMER)
-			defq->ino.time = newlim->d_ino_timer;
-		if (newlim->d_fieldmask & QC_RT_SPC_TIMER)
-			defq->rtb.time = newlim->d_rt_spc_timer;
-	}
+		xfs_setqlim_timer(res, qlim, newlim->d_ino_timer);
 
 	if (id != 0) {
 		/*


  parent reply	other threads:[~2020-07-15  1:55 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-15  1:50 [PATCH v4 00/26] xfs: remove xfs_disk_quot from incore dquot Darrick J. Wong
2020-07-15  1:50 ` [PATCH 01/26] xfs: clear XFS_DQ_FREEING if we can't lock the dquot buffer to flush Darrick J. Wong
2020-07-15  1:50 ` [PATCH 02/26] xfs: fix inode quota reservation checks Darrick J. Wong
2020-07-15  1:50 ` [PATCH 03/26] xfs: validate ondisk/incore dquot flags Darrick J. Wong
2020-07-15 12:50   ` Chandan Babu R
2020-07-15  1:50 ` [PATCH 04/26] xfs: move the flags argument of xfs_qm_scall_trunc_qfiles to XFS_QMOPT_* Darrick J. Wong
2020-07-15 12:50   ` Chandan Babu R
2020-07-15  1:51 ` [PATCH 05/26] xfs: split the incore dquot type into a separate field Darrick J. Wong
2020-07-16  6:59   ` Chandan Babu R
2020-07-15  1:51 ` [PATCH 06/26] xfs: refactor quotacheck flags usage Darrick J. Wong
2020-07-16  6:59   ` Chandan Babu R
2020-07-15  1:51 ` [PATCH 07/26] xfs: rename dquot incore state flags Darrick J. Wong
2020-07-16  6:59   ` Chandan Babu R
2020-07-15  1:51 ` [PATCH 08/26] xfs: move the ondisk dquot flags to their own namespace Darrick J. Wong
2020-07-15  1:51 ` [PATCH 09/26] xfs: make XFS_DQUOT_CLUSTER_SIZE_FSB part of the ondisk format Darrick J. Wong
2020-07-20  5:37   ` Chandan Babu R
2020-07-15  1:51 ` [PATCH 10/26] xfs: stop using q_core.d_flags in the quota code Darrick J. Wong
2020-07-20  5:37   ` Chandan Babu R
2020-07-15  1:51 ` [PATCH 11/26] xfs: stop using q_core.d_id " Darrick J. Wong
2020-07-15  1:51 ` [PATCH 12/26] xfs: use a per-resource struct for incore dquot data Darrick J. Wong
2020-07-15  1:52 ` [PATCH 13/26] xfs: stop using q_core limits in the quota code Darrick J. Wong
2020-07-15  1:52 ` [PATCH 14/26] xfs: stop using q_core counters " Darrick J. Wong
2020-07-15  1:52 ` [PATCH 15/26] xfs: stop using q_core warning " Darrick J. Wong
2020-07-15  1:52 ` [PATCH 16/26] xfs: stop using q_core timers " Darrick J. Wong
2020-07-15  1:52 ` [PATCH 17/26] xfs: remove qcore from incore dquots Darrick J. Wong
2020-07-15  1:52 ` [PATCH 18/26] xfs: refactor default quota limits by resource Darrick J. Wong
2020-07-15  1:52 ` [PATCH 19/26] xfs: remove unnecessary arguments from quota adjust functions Darrick J. Wong
2020-07-15  1:52 ` [PATCH 20/26] xfs: refactor quota exceeded test Darrick J. Wong
2020-07-15  1:52 ` Darrick J. Wong [this message]
2020-07-15  1:52 ` [PATCH 22/26] xfs: refactor xfs_trans_dqresv Darrick J. Wong
2020-07-15  1:53 ` [PATCH 23/26] xfs: refactor xfs_trans_apply_dquot_deltas Darrick J. Wong
2020-07-15  1:53 ` [PATCH 24/26] xfs: assume the default quota limits are always set in xfs_qm_adjust_dqlimits Darrick J. Wong
2020-07-20  5:38   ` Chandan Babu R
2020-07-15  1:53 ` [PATCH 25/26] xfs: actually bump warning counts when we send warnings Darrick J. Wong
2020-07-20  5:38   ` Chandan Babu R
2022-03-01 19:31   ` Quota warning woes (was: [PATCH 25/26] xfs: actually bump warning counts when we send warnings) Eric Sandeen
2022-03-02 18:19     ` Eric Sandeen
2022-03-03  0:38       ` Darrick J. Wong
2020-07-15  1:53 ` [PATCH 26/26] xfs: add more dquot tracepoints Darrick J. Wong
  -- strict thread matches above, loose matches on Subject: below --
2020-07-14  1:31 [PATCH v3 00/26] xfs: remove xfs_disk_quot from incore dquot Darrick J. Wong
2020-07-14  1:33 ` [PATCH 21/26] xfs: refactor xfs_qm_scall_setqlim Darrick J. Wong

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