@@ -1199,6 +1199,30 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
#define XFS_DQTYPE_ANY (XFS_DQTYPE_REC_MASK)
+/*
+ * XFS Quota Timers
+ * ================
+ *
+ * Traditional quota grace period expiration timers are an unsigned 32-bit
+ * seconds counter; time zero is the Unix epoch, Jan 1 00:00:01 UTC 1970.
+ * Note that an expiration value of zero means that the quota limit has not
+ * been reached, and therefore no expiration has been set. Therefore, the
+ * ondisk min and max defined here can be used directly to constrain the incore
+ * quota expiration timestamps on a Unix system.
+ */
+
+/*
+ * Smallest possible ondisk quota expiration value with traditional timestamps.
+ * This corresponds exactly with the incore expiration Jan 1 00:00:01 UTC 1970.
+ */
+#define XFS_DQ_LEGACY_EXPIRY_MIN ((int64_t)1)
+
+/*
+ * Largest possible ondisk quota expiration value with traditional timestamps.
+ * This corresponds exactly with the incore expiration Feb 7 06:28:15 UTC 2106.
+ */
+#define XFS_DQ_LEGACY_EXPIRY_MAX ((int64_t)U32_MAX)
+
/*
* This is the main portion of the on-disk representation of quota information
* for a user. We pad this with some more expansion room to construct the on
@@ -98,12 +98,25 @@ xfs_qm_adjust_dqlimits(
xfs_dquot_set_prealloc_limits(dq);
}
+/* Set the expiration time of a quota's grace period. */
+time64_t
+xfs_dquot_set_timeout(
+ struct xfs_mount *mp,
+ time64_t timeout)
+{
+ struct xfs_quotainfo *qi = mp->m_quotainfo;
+
+ return clamp_t(time64_t, timeout, qi->qi_expiry_min,
+ qi->qi_expiry_max);
+}
+
/*
* 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_mount *mp,
struct xfs_dquot_res *res,
struct xfs_quota_limits *qlim)
{
@@ -112,7 +125,8 @@ xfs_qm_adjust_res_timer(
if ((res->softlimit && res->count > res->softlimit) ||
(res->hardlimit && res->count > res->hardlimit)) {
if (res->timer == 0)
- res->timer = ktime_get_real_seconds() + qlim->time;
+ res->timer = xfs_dquot_set_timeout(mp,
+ ktime_get_real_seconds() + qlim->time);
} else {
if (res->timer == 0)
res->warnings = 0;
@@ -145,9 +159,9 @@ xfs_qm_adjust_dqtimers(
ASSERT(dq->q_id);
defq = xfs_get_defquota(qi, xfs_dquot_type(dq));
- xfs_qm_adjust_res_timer(&dq->q_blk, &defq->blk);
- xfs_qm_adjust_res_timer(&dq->q_ino, &defq->ino);
- xfs_qm_adjust_res_timer(&dq->q_rtb, &defq->rtb);
+ xfs_qm_adjust_res_timer(dq->q_mount, &dq->q_blk, &defq->blk);
+ xfs_qm_adjust_res_timer(dq->q_mount, &dq->q_ino, &defq->ino);
+ xfs_qm_adjust_res_timer(dq->q_mount, &dq->q_rtb, &defq->rtb);
}
/*
@@ -237,4 +237,6 @@ typedef int (*xfs_qm_dqiterate_fn)(struct xfs_dquot *dq,
int xfs_qm_dqiterate(struct xfs_mount *mp, xfs_dqtype_t type,
xfs_qm_dqiterate_fn iter_fn, void *priv);
+time64_t xfs_dquot_set_timeout(struct xfs_mount *mp, time64_t timeout);
+
#endif /* __XFS_DQUOT_H__ */
@@ -661,6 +661,8 @@ xfs_qm_init_quotainfo(
/* Precalc some constants */
qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(qinf->qi_dqchunklen);
+ qinf->qi_expiry_min = XFS_DQ_LEGACY_EXPIRY_MIN;
+ qinf->qi_expiry_max = XFS_DQ_LEGACY_EXPIRY_MAX;
mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD);
@@ -65,6 +65,10 @@ struct xfs_quotainfo {
struct xfs_def_quota qi_grp_default;
struct xfs_def_quota qi_prj_default;
struct shrinker qi_shrinker;
+
+ /* Minimum and maximum quota expiration timestamp values. */
+ time64_t qi_expiry_min;
+ time64_t qi_expiry_max;
};
static inline struct radix_tree_root *
@@ -479,13 +479,19 @@ xfs_setqlim_warns(
static inline void
xfs_setqlim_timer(
+ struct xfs_mount *mp,
struct xfs_dquot_res *res,
struct xfs_quota_limits *qlim,
s64 timer)
{
- res->timer = timer;
- if (qlim)
+ if (qlim) {
+ /* Set the length of the default grace period. */
+ res->timer = timer;
qlim->time = timer;
+ } else {
+ /* Set the grace period expiration on a quota. */
+ res->timer = xfs_dquot_set_timeout(mp, timer);
+ }
}
/*
@@ -574,7 +580,7 @@ xfs_qm_scall_setqlim(
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);
+ xfs_setqlim_timer(mp, res, qlim, newlim->d_spc_timer);
/* Blocks on the realtime device. */
hard = (newlim->d_fieldmask & QC_RT_SPC_HARD) ?
@@ -590,7 +596,7 @@ xfs_qm_scall_setqlim(
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);
+ xfs_setqlim_timer(mp, res, qlim, newlim->d_rt_spc_timer);
/* Inodes */
hard = (newlim->d_fieldmask & QC_INO_HARD) ?
@@ -606,7 +612,7 @@ xfs_qm_scall_setqlim(
if (newlim->d_fieldmask & QC_INO_WARNS)
xfs_setqlim_warns(res, qlim, newlim->d_ino_warns);
if (newlim->d_fieldmask & QC_INO_TIMER)
- xfs_setqlim_timer(res, qlim, newlim->d_ino_timer);
+ xfs_setqlim_timer(mp, res, qlim, newlim->d_ino_timer);
if (id != 0) {
/*