*/
static int qmt_get(const struct lu_env *env, struct qmt_device *qmt,
__u16 pool_id, __u8 restype, __u8 qtype, union lquota_id *id,
- __u64 *hard, __u64 *soft, __u64 *time)
+ __u64 *hard, __u64 *soft, __u64 *time, bool is_default)
{
struct lquota_entry *lqe;
ENTRY;
+ LASSERT(!is_default || id->qid_uid == 0);
+
/* look-up lqe structure containing quota settings */
lqe = qmt_pool_lqe_lookup(env, qmt, pool_id, restype, qtype, id);
if (IS_ERR(lqe))
*hard = lqe->lqe_hardlimit;
if (soft != NULL)
*soft = lqe->lqe_softlimit;
- if (time != NULL)
+ if (time != NULL) {
*time = lqe->lqe_gracetime;
+ if (lqe->lqe_is_default)
+ *time |= (__u64)LQUOTA_FLAG_DEFAULT <<
+ LQUOTA_GRACE_BITS;
+ }
lqe_read_unlock(lqe);
lqe_putref(lqe);
RETURN(0);
}
+struct qmt_entry_iter_data {
+ const struct lu_env *qeid_env;
+ struct qmt_device *qeid_qmt;
+};
+
+static int qmt_entry_iter_cb(struct cfs_hash *hs, struct cfs_hash_bd *bd,
+ struct hlist_node *hnode, void *d)
+{
+ struct qmt_entry_iter_data *iter = (struct qmt_entry_iter_data *)d;
+ struct lquota_entry *lqe;
+
+ lqe = hlist_entry(hnode, struct lquota_entry, lqe_hash);
+ LASSERT(atomic_read(&lqe->lqe_ref) > 0);
+
+ if (lqe->lqe_id.qid_uid == 0 || !lqe->lqe_is_default)
+ return 0;
+
+ return qmt_set_with_lqe(iter->qeid_env, iter->qeid_qmt, lqe, 0, 0, 0, 0,
+ true, true);
+}
+
/*
- * Update quota settings for a given identifier.
+ * Update quota settings for a given lqe.
*
- * \param env - is the environment passed by the caller
- * \param qmt - is the quota master target
- * \param pool_id - is the 16-bit pool identifier
- * \param restype - is the pool type, either block (i.e. LQUOTA_RES_DT) or inode
- * (i.e. LQUOTA_RES_MD)
- * \param qtype - is the quota type
- * \param id - is the quota indentifier for which we want to modify quota
- * settings.
- * \param hard - is the new hard limit
- * \param soft - is the new soft limit
- * \param time - is the new grace time
- * \param valid - is the list of settings to change
+ * \param env - is the environment passed by the caller
+ * \param qmt - is the quota master target
+ * \param lqe - is the lquota_entry for which we want to modify quota
+ * settings.
+ * \param hard - is the new hard limit
+ * \param soft - is the new soft limit
+ * \param time - is the new grace time
+ * \param valid - is the list of settings to change
+ * \param is_default - true for default quota setting
+ * \param is_updated - true if the lqe is updated and no need to write back
*/
-static int qmt_set(const struct lu_env *env, struct qmt_device *qmt,
- __u16 pool_id, __u8 restype, __u8 qtype,
- union lquota_id *id, __u64 hard, __u64 soft, __u64 time,
- __u32 valid)
+
+int qmt_set_with_lqe(const struct lu_env *env, struct qmt_device *qmt,
+ struct lquota_entry *lqe, __u64 hard, __u64 soft,
+ __u64 time, __u32 valid, bool is_default, bool is_updated)
{
struct qmt_thread_info *qti = qmt_info(env);
- struct lquota_entry *lqe;
struct thandle *th = NULL;
time64_t now;
__u64 ver;
int rc = 0;
ENTRY;
- /* look-up quota entry associated with this ID */
- lqe = qmt_pool_lqe_lookup(env, qmt, pool_id, restype, qtype, id);
- if (IS_ERR(lqe))
- RETURN(PTR_ERR(lqe));
-
- /* allocate & start transaction with enough credits to update quota
- * settings in the global index file */
- th = qmt_trans_start(env, lqe, &qti->qti_restore);
- if (IS_ERR(th))
- GOTO(out_nolock, rc = PTR_ERR(th));
+ /* need to write back to global quota file? */
+ if (!is_updated) {
+ /* allocate & start transaction with enough credits to update
+ * quota settings in the global index file */
+ th = qmt_trans_start(env, lqe, &qti->qti_restore);
+ if (IS_ERR(th))
+ GOTO(out_nolock, rc = PTR_ERR(th));
+ }
now = ktime_get_real_seconds();
LQUOTA_DEBUG(lqe, "changing quota settings valid:%x hard:%llu soft:"
"%llu time:%llu", valid, hard, soft, time);
+ if (is_default && lqe->lqe_id.qid_uid != 0) {
+ LQUOTA_DEBUG(lqe, "set qid %llu to use default quota setting",
+ lqe->lqe_id.qid_uid);
+
+ qmt_lqe_set_default(env, lqe->lqe_site->lqs_parent, lqe, false);
+ GOTO(quota_set, 0);
+ }
+
if ((valid & QIF_TIMES) != 0 && lqe->lqe_gracetime != time) {
/* change time settings */
lqe->lqe_gracetime = time;
if (rc)
GOTO(out, rc);
- /* recompute qunit in case it was never initialized */
- qmt_revalidate(env, lqe);
-
/* change quota limits */
lqe->lqe_hardlimit = hard;
lqe->lqe_softlimit = soft;
+quota_set:
+ /* recompute qunit in case it was never initialized */
+ qmt_revalidate(env, lqe);
+
/* clear grace time */
if (lqe->lqe_softlimit == 0 ||
lqe->lqe_granted <= lqe->lqe_softlimit)
lqe->lqe_gracetime = now + qmt_lqe_grace(lqe);
/* change enforced status based on new parameters */
- if (lqe->lqe_hardlimit == 0 && lqe->lqe_softlimit == 0)
+ if (lqe->lqe_id.qid_uid == 0 || (lqe->lqe_hardlimit == 0 &&
+ lqe->lqe_softlimit == 0))
lqe->lqe_enforced = false;
else
lqe->lqe_enforced = true;
}
if (dirtied) {
- /* write new quota settings to disk */
- rc = qmt_glb_write(env, th, lqe, LQUOTA_BUMP_VER, &ver);
- if (rc) {
- /* restore initial quota settings */
- qmt_restore(lqe, &qti->qti_restore);
- GOTO(out, rc);
+ if (!is_default && lqe->lqe_is_default) {
+ LQUOTA_DEBUG(lqe, "the qid %llu has been set quota"
+ " explicitly, clear the default flag",
+ lqe->lqe_id.qid_uid);
+
+ qmt_lqe_clear_default(lqe);
+ }
+
+ if (!is_updated) {
+ /* write new quota settings to disk */
+ rc = qmt_glb_write(env, th, lqe, LQUOTA_BUMP_VER, &ver);
+ if (rc) {
+ /* restore initial quota settings */
+ qmt_restore(lqe, &qti->qti_restore);
+ GOTO(out, rc);
+ }
}
/* compute new qunit value now that we have modified the quota
EXIT;
out:
lqe_write_unlock(lqe);
-out_nolock:
- lqe_putref(lqe);
+out_nolock:
if (th != NULL && !IS_ERR(th))
dt_trans_stop(env, qmt->qmt_child, th);
- if (rc == 0 && dirtied)
+ if (rc == 0 && dirtied) {
qmt_glb_lock_notify(env, lqe, ver);
+ if (lqe->lqe_id.qid_uid == 0) {
+ struct qmt_entry_iter_data iter_data;
+
+ LQUOTA_DEBUG(lqe, "notify all lqe with default quota");
+ iter_data.qeid_env = env;
+ iter_data.qeid_qmt = qmt;
+ cfs_hash_for_each_safe(lqe->lqe_site->lqs_hash,
+ qmt_entry_iter_cb, &iter_data);
+ }
+ }
return rc;
}
/*
+ * Update quota settings for a given identifier.
+ *
+ * \param env - is the environment passed by the caller
+ * \param qmt - is the quota master target
+ * \param pool_id - is the 16-bit pool identifier
+ * \param restype - is the pool type, either block (i.e. LQUOTA_RES_DT) or
+ * inode (i.e. LQUOTA_RES_MD)
+ * \param qtype - is the quota type
+ * \param id - is the quota indentifier for which we want to modify
+ * quota settings.
+ * \param hard - is the new hard limit
+ * \param soft - is the new soft limit
+ * \param time - is the new grace time
+ * \param valid - is the list of settings to change
+ * \param is_default - true for default quota setting
+ * \param is_updated - true if the lqe is updated and no need to write back
+ */
+static int qmt_set(const struct lu_env *env, struct qmt_device *qmt,
+ __u16 pool_id, __u8 restype, __u8 qtype,
+ union lquota_id *id, __u64 hard, __u64 soft, __u64 time,
+ __u32 valid, bool is_default, bool is_updated)
+{
+ struct lquota_entry *lqe;
+ int rc;
+ ENTRY;
+
+ /* look-up quota entry associated with this ID */
+ lqe = qmt_pool_lqe_lookup(env, qmt, pool_id, restype, qtype, id);
+ if (IS_ERR(lqe))
+ RETURN(PTR_ERR(lqe));
+
+ rc = qmt_set_with_lqe(env, qmt, lqe, hard, soft, time, valid,
+ is_default, is_updated);
+
+ lqe_putref(lqe);
+ RETURN(rc);
+}
+
+/*
* Handle quotactl request.
*
* \param env - is the environment passed by the caller
struct qmt_device *qmt = lu2qmt_dev(ld);
struct obd_dqblk *dqb = &oqctl->qc_dqblk;
int rc = 0;
+ bool is_default = false;
ENTRY;
LASSERT(qmt != NULL);
/* read inode grace time */
rc = qmt_get(env, qmt, 0, LQUOTA_RES_MD, oqctl->qc_type, id,
- NULL, NULL, &oqctl->qc_dqinfo.dqi_igrace);
+ NULL, NULL, &oqctl->qc_dqinfo.dqi_igrace, false);
if (rc)
break;
/* read block grace time */
rc = qmt_get(env, qmt, 0, LQUOTA_RES_DT, oqctl->qc_type, id,
- NULL, NULL, &oqctl->qc_dqinfo.dqi_bgrace);
+ NULL, NULL, &oqctl->qc_dqinfo.dqi_bgrace, false);
break;
case Q_SETINFO: /* modify grace times */
/* set inode grace time */
rc = qmt_set(env, qmt, 0, LQUOTA_RES_MD, oqctl->qc_type,
id, 0, 0, oqctl->qc_dqinfo.dqi_igrace,
- QIF_TIMES);
+ QIF_TIMES, false, false);
if (rc)
break;
}
/* set block grace time */
rc = qmt_set(env, qmt, 0, LQUOTA_RES_DT, oqctl->qc_type,
id, 0, 0, oqctl->qc_dqinfo.dqi_bgrace,
- QIF_TIMES);
+ QIF_TIMES, false, false);
break;
+ case LUSTRE_Q_GETDEFAULT:
+ is_default = true;
+
case Q_GETQUOTA: /* consult quota limit */
- /* There is no quota limit for root user & group */
- if (oqctl->qc_id == 0) {
- memset(dqb, 0, sizeof(*dqb));
- dqb->dqb_valid = QIF_LIMITS | QIF_TIMES;
- break;
- }
/* extract quota ID from quotactl request */
id->qid_uid = oqctl->qc_id;
/* look-up inode quota settings */
rc = qmt_get(env, qmt, 0, LQUOTA_RES_MD, oqctl->qc_type, id,
&dqb->dqb_ihardlimit, &dqb->dqb_isoftlimit,
- &dqb->dqb_itime);
+ &dqb->dqb_itime, is_default);
if (rc)
break;
/* look-up block quota settings */
rc = qmt_get(env, qmt, 0, LQUOTA_RES_DT, oqctl->qc_type, id,
&dqb->dqb_bhardlimit, &dqb->dqb_bsoftlimit,
- &dqb->dqb_btime);
+ &dqb->dqb_btime, is_default);
if (rc)
break;
dqb->dqb_curspace = 0;
break;
+ case LUSTRE_Q_SETDEFAULT:
+ is_default = true;
+
case Q_SETQUOTA: /* change quota limits */
- if (oqctl->qc_id == 0)
- /* can't enforce a quota limit for root user & group */
- RETURN(-EPERM);
/* extract quota ID from quotactl request */
id->qid_uid = oqctl->qc_id;
rc = qmt_set(env, qmt, 0, LQUOTA_RES_MD, oqctl->qc_type,
id, dqb->dqb_ihardlimit,
dqb->dqb_isoftlimit, dqb->dqb_itime,
- dqb->dqb_valid & QIF_IFLAGS);
+ dqb->dqb_valid & QIF_IFLAGS, is_default,
+ false);
if (rc)
break;
}
rc = qmt_set(env, qmt, 0, LQUOTA_RES_DT, oqctl->qc_type,
id, dqb->dqb_bhardlimit,
dqb->dqb_bsoftlimit, dqb->dqb_btime,
- dqb->dqb_valid & QIF_BFLAGS);
+ dqb->dqb_valid & QIF_BFLAGS, is_default,
+ false);
break;
default:
git://git.whamcloud.com / fs / lustre-release.git / blobdiff