if (lqe->lqe_id.qid_uid == 0)
RETURN(0);
- lqe_def = pool->qpi_grace_lqe[lqe->lqe_site->lqs_qtype];
+ lqe_def = pool->qpi_grace_lqe[lqe_qtype(lqe)];
LQUOTA_DEBUG(lqe, "inherit default quota");
* \param env - the environment passed by the caller
* \param lqe - is the quota entry to refresh
* \param arg - is the pointer to the qmt_pool_info structure
+ * \param find - don't create lqe on disk in case of ENOENT if true
*/
static int qmt_lqe_read(const struct lu_env *env, struct lquota_entry *lqe,
- void *arg)
+ void *arg, bool find)
{
struct qmt_thread_info *qti = qmt_info(env);
struct qmt_pool_info *pool = (struct qmt_pool_info *)arg;
switch (rc) {
case -ENOENT:
+ if (find)
+ RETURN(-ENOENT);
qmt_lqe_set_default(env, pool, lqe, true);
break;
case 0:
else
lqe->lqe_enforced = true;
+ if (qmt_pool_global(pool))
+ lqe->lqe_is_global = 1;
+
LQUOTA_DEBUG(lqe, "read");
RETURN(0);
}
*
* \param env - is the environment passed by the caller
* \param lqe - is the quota entry associated with the identifier
- * subject to the change
+ * subject to the change. If it is NULL lqes array is
+ * taken from env with qti_lqes_env(env).
* \param slv_obj - is the dt_object associated with the index file
- * \param restore - is a temporary storage for current quota settings which will
- * be restored if something goes wrong at index update time.
+ * \param sync - make transaction sync if true
*/
struct thandle *qmt_trans_start_with_slv(const struct lu_env *env,
struct lquota_entry *lqe,
struct dt_object *slv_obj,
- struct qmt_lqe_restore *restore)
+ bool sync)
{
struct qmt_device *qmt;
struct thandle *th;
- int rc;
+ struct lquota_entry **lqes;
+ struct qmt_lqe_restore *restore;
+ int rc, i, lqes_cnt;
ENTRY;
- LASSERT(lqe != NULL);
- LASSERT(lqe_is_master(lqe));
+ restore = qti_lqes_rstr(env);
+ if (!lqe) {
+ lqes_cnt = qti_lqes_cnt(env);
+ lqes = qti_lqes(env);
+ } else {
+ lqes_cnt = 1;
+ lqes = &lqe;
+ }
- qmt = lqe2qpi(lqe)->qpi_qmt;
+ /* qmt is the same for all lqes, so take it from the 1st */
+ qmt = lqe2qpi(lqes[0])->qpi_qmt;
if (slv_obj != NULL)
- LQUOTA_DEBUG(lqe, "declare write for slv "DFID,
+ LQUOTA_DEBUG(lqes[0], "declare write for slv "DFID,
PFID(lu_object_fid(&slv_obj->do_lu)));
/* start transaction */
if (IS_ERR(th))
RETURN(th);
- if (slv_obj == NULL)
+ if (sync)
/* quota settings on master are updated synchronously for the
* time being */
th->th_sync = 1;
/* reserve credits for global index update */
- rc = lquota_disk_declare_write(env, th, LQE_GLB_OBJ(lqe), &lqe->lqe_id);
- if (rc)
- GOTO(out, rc);
+ for (i = 0; i < lqes_cnt; i++) {
+ rc = lquota_disk_declare_write(env, th,
+ LQE_GLB_OBJ(lqes[i]),
+ &lqes[i]->lqe_id);
+ if (rc)
+ GOTO(out, rc);
+ }
if (slv_obj != NULL) {
/* reserve credits for slave index update */
", rc:%d", PFID(lu_object_fid(&slv_obj->do_lu)),
rc);
} else {
- restore->qlr_hardlimit = lqe->lqe_hardlimit;
- restore->qlr_softlimit = lqe->lqe_softlimit;
- restore->qlr_gracetime = lqe->lqe_gracetime;
- restore->qlr_granted = lqe->lqe_granted;
- restore->qlr_qunit = lqe->lqe_qunit;
+ for (i = 0; i < lqes_cnt; i++) {
+ restore[i].qlr_hardlimit = lqes[i]->lqe_hardlimit;
+ restore[i].qlr_softlimit = lqes[i]->lqe_softlimit;
+ restore[i].qlr_gracetime = lqes[i]->lqe_gracetime;
+ restore[i].qlr_granted = lqes[i]->lqe_granted;
+ restore[i].qlr_qunit = lqes[i]->lqe_qunit;
+ }
}
return th;
}
* be restored if something goes wrong at index update time.
*/
struct thandle *qmt_trans_start(const struct lu_env *env,
- struct lquota_entry *lqe,
- struct qmt_lqe_restore *restore)
+ struct lquota_entry *lqe)
{
LQUOTA_DEBUG(lqe, "declare write");
- return qmt_trans_start_with_slv(env, lqe, NULL, restore);
+ return qmt_trans_start_with_slv(env, lqe, NULL, true);
+}
+
+int qmt_glb_write_lqes(const struct lu_env *env, struct thandle *th,
+ __u32 flags, __u64 *ver)
+{
+ int i, rc;
+ rc = 0;
+
+ for (i = 0; i < qti_lqes_cnt(env); i++) {
+ rc = qmt_glb_write(env, th, qti_lqes(env)[i], flags, ver);
+ if (rc)
+ break;
+ }
+ return rc;
}
/*
* The entry must be at least read locked.
*
* \param env - the environment passed by the caller
- * \param lqe - is the quota entry associated with the identifier to look-up
+ * \param lqe_id - is the quota id associated with the identifier to look-up
* in the slave index
* \param slv_obj - is the dt_object associated with the slave index
* \param granted - is the output parameter where to return how much space
*
* \retval - 0 on success, appropriate error on failure
*/
-int qmt_slv_read(const struct lu_env *env, struct lquota_entry *lqe,
+int qmt_slv_read(const struct lu_env *env, union lquota_id *qid,
struct dt_object *slv_obj, __u64 *granted)
{
struct qmt_thread_info *qti = qmt_info(env);
int rc;
ENTRY;
- LASSERT(lqe != NULL);
- LASSERT(lqe_is_master(lqe));
- LASSERT(lqe_is_locked(lqe));
-
- LQUOTA_DEBUG(lqe, "read slv "DFID,
- PFID(lu_object_fid(&slv_obj->do_lu)));
+ CDEBUG(D_QUOTA, "read id:%llu form slv "DFID"\n",
+ qid->qid_uid, PFID(lu_object_fid(&slv_obj->do_lu)));
/* read slave record from disk */
- rc = lquota_disk_read(env, slv_obj, &lqe->lqe_id,
+ rc = lquota_disk_read(env, slv_obj, qid,
(struct dt_rec *)slv_rec);
switch (rc) {
case -ENOENT:
*granted = slv_rec->qsr_granted;
break;
default:
- LQUOTA_ERROR(lqe, "failed to read slave record "DFID,
- PFID(lu_object_fid(&slv_obj->do_lu)));
+ CERROR("Failed to read slave record for %llu from "DFID"\n",
+ qid->qid_uid, PFID(lu_object_fid(&slv_obj->do_lu)));
RETURN(rc);
}
- LQUOTA_DEBUG(lqe, "successful slv read %llu", *granted);
+ CDEBUG(D_QUOTA, "Successful slv read %llu\n", *granted);
RETURN(0);
}
* \param lqe - is the quota entry to check
* \param now - is the current time in second used for grace time managment
*/
-void qmt_adjust_edquot(struct lquota_entry *lqe, __u64 now)
+bool qmt_adjust_edquot(struct lquota_entry *lqe, __u64 now)
{
struct qmt_pool_info *pool = lqe2qpi(lqe);
ENTRY;
if (!lqe->lqe_enforced || lqe->lqe_id.qid_uid == 0)
- RETURN_EXIT;
+ RETURN(false);
if (!lqe->lqe_edquot) {
/* space exhausted flag not set, let's check whether it is time
if (!qmt_space_exhausted(lqe, now))
/* the qmt still has available space */
- RETURN_EXIT;
+ RETURN(false);
/* See comment in qmt_adjust_qunit(). LU-4139 */
if (qmt_hard_exhausted(lqe) ||
* still hope that the rebalancing process might free
* up some quota space */
if (lqe->lqe_qunit != pool->qpi_least_qunit)
- RETURN_EXIT;
+ RETURN(false);
/* least qunit value not sent to all slaves yet */
if (lqe->lqe_revoke_time == 0)
- RETURN_EXIT;
+ RETURN(false);
/* Let's give more time to slave to release space */
lapse = ktime_get_seconds() - QMT_REBA_TIMEOUT;
if (lqe->lqe_may_rel != 0 && lqe->lqe_revoke_time > lapse)
- RETURN_EXIT;
+ RETURN(false);
} else {
if (lqe->lqe_qunit > pool->qpi_soft_least_qunit)
- RETURN_EXIT;
+ RETURN(false);
}
/* set edquot flag */
if (qmt_space_exhausted(lqe, now))
/* the qmt still has not space */
- RETURN_EXIT;
+ RETURN(false);
if (lqe->lqe_hardlimit != 0 &&
lqe->lqe_granted + pool->qpi_least_qunit >
lqe->lqe_hardlimit)
/* we clear the flag only once at least one least qunit
* is available */
- RETURN_EXIT;
+ RETURN(false);
/* clear edquot flag */
lqe->lqe_edquot = false;
/* let's notify slave by issuing glimpse on per-ID lock.
* the rebalance thread will take care of this */
- qmt_id_lock_notify(pool->qpi_qmt, lqe);
- EXIT;
+ RETURN(true);
}
/* Using least_qunit when over block softlimit will seriously impact the
LASSERT(lqe->lqe_enforced && lqe->lqe_qunit != 0);
- slv_cnt = lqe2qpi(lqe)->qpi_slv_nr[lqe->lqe_site->lqs_qtype];
- qunit = lqe->lqe_qunit;
+ slv_cnt = qpi_slv_nr(lqe2qpi(lqe), lqe_qtype(lqe));
+ qunit = lqe->lqe_qunit;
/* See comment in qmt_adjust_qunit(). LU-4139. */
if (lqe->lqe_softlimit != 0) {
*
* \param env - the environment passed by the caller
* \param lqe - is the qid entry to be adjusted
+ * \retval true - need reseed glbe array
*/
-void qmt_adjust_qunit(const struct lu_env *env, struct lquota_entry *lqe)
+bool qmt_adjust_qunit(const struct lu_env *env, struct lquota_entry *lqe)
{
struct qmt_pool_info *pool = lqe2qpi(lqe);
+ bool need_reseed = false;
int slv_cnt;
__u64 qunit, limit, qunit2 = 0;
ENTRY;
if (!lqe->lqe_enforced || lqe->lqe_id.qid_uid == 0)
/* no quota limits */
- RETURN_EXIT;
+ RETURN(need_reseed);
/* record how many slaves have already registered */
- slv_cnt = pool->qpi_slv_nr[lqe->lqe_site->lqs_qtype];
- if (slv_cnt == 0)
+ slv_cnt = qpi_slv_nr(pool, lqe_qtype(lqe));
+ if (slv_cnt == 0) {
+ /* Pool hasn't slaves anymore. Qunit will be adjusted
+ * again when new slaves would be added. */
+ if (lqe->lqe_qunit) {
+ qunit = 0;
+ GOTO(done, qunit);
+ }
/* wait for at least one slave to join */
- RETURN_EXIT;
+ RETURN(need_reseed);
+ }
/* Qunit calculation is based on soft limit, if any, hard limit
* otherwise. This means that qunit is shrunk to the minimum when
} else {
LQUOTA_ERROR(lqe, "enforced bit set, but neither hard nor soft "
"limit are set");
- RETURN_EXIT;
+ RETURN(need_reseed);
}
qunit = lqe->lqe_qunit == 0 ? pool->qpi_least_qunit : lqe->lqe_qunit;
done:
if (lqe->lqe_qunit == qunit)
/* keep current qunit */
- RETURN_EXIT;
+ RETURN(need_reseed);
LQUOTA_DEBUG(lqe, "%s qunit to %llu",
lqe->lqe_qunit < qunit ? "increasing" : "decreasing",
/* store new qunit value */
swap(lqe->lqe_qunit, qunit);
+ /* reseed glbe array and notify
+ * slave if qunit was shrinked */
+ need_reseed = true;
/* reset revoke time */
lqe->lqe_revoke_time = 0;
- if (lqe->lqe_qunit < qunit)
- /* let's notify slave of qunit shrinking */
- qmt_id_lock_notify(pool->qpi_qmt, lqe);
- else if (lqe->lqe_qunit == pool->qpi_least_qunit)
+ if (lqe->lqe_qunit >= qunit &&
+ (lqe->lqe_qunit == pool->qpi_least_qunit)) {
/* initial qunit value is the smallest one */
lqe->lqe_revoke_time = ktime_get_seconds();
- EXIT;
+ }
+ RETURN(need_reseed);
}
+bool qmt_adjust_edquot_qunit_notify(const struct lu_env *env,
+ struct qmt_device *qmt,
+ __u64 now, bool edquot,
+ bool qunit, __u32 qb_flags)
+{
+ struct lquota_entry *lqe_gl, *lqe;
+ bool need_reseed = false;
+ int i;
+
+ lqe_gl = qti_lqes_glbl(env);
+
+ for (i = 0; i < qti_lqes_cnt(env); i++) {
+ lqe = qti_lqes(env)[i];
+ if (qunit)
+ need_reseed |= qmt_adjust_qunit(env, lqe);
+ if (edquot)
+ need_reseed |= qmt_adjust_edquot(lqe, now);
+ }
+
+ LASSERT(lqe_gl);
+ if (!lqe_gl->lqe_glbl_data &&
+ (req_has_rep(qb_flags) || req_is_rel(qb_flags))) {
+ if (need_reseed)
+ CWARN("%s: can't notify - lge_glbl_data is not set",
+ qmt->qmt_svname);
+ return need_reseed;
+ }
+
+ if (lqe_gl->lqe_glbl_data && need_reseed) {
+ qmt_seed_glbe_all(env, lqe_gl->lqe_glbl_data, qunit, edquot);
+ qmt_id_lock_notify(qmt, lqe_gl);
+ }
+ return need_reseed;
+}
+
+
/*
* Adjust qunit & edquot flag in case it wasn't initialized already (e.g.
* limit set while no slaves were connected yet)
*/
-void qmt_revalidate(const struct lu_env *env, struct lquota_entry *lqe)
+bool qmt_revalidate(const struct lu_env *env, struct lquota_entry *lqe)
{
+ bool need_notify = false;
+
if (lqe->lqe_qunit == 0) {
/* lqe was read from disk, but neither qunit, nor edquot flag
* were initialized */
- qmt_adjust_qunit(env, lqe);
+ need_notify = qmt_adjust_qunit(env, lqe);
if (lqe->lqe_qunit != 0)
- qmt_adjust_edquot(lqe, ktime_get_real_seconds());
+ need_notify |= qmt_adjust_edquot(lqe,
+ ktime_get_real_seconds());
+ }
+
+ return need_notify;
+}
+
+void qmt_revalidate_lqes(const struct lu_env *env,
+ struct qmt_device *qmt, __u32 qb_flags)
+{
+ struct lquota_entry *lqe_gl = qti_lqes_glbl(env);
+ bool need_notify = false;
+ int i;
+
+ for (i = 0; i < qti_lqes_cnt(env); i++)
+ need_notify |= qmt_revalidate(env, qti_lqes(env)[i]);
+
+ /* There could be no ID lock to the moment of reconciliation.
+ * As a result lqe global data is not initialised yet. It is ok
+ * for release and report requests. */
+ if (!lqe_gl->lqe_glbl_data &&
+ (req_is_rel(qb_flags) || req_has_rep(qb_flags)))
+ return;
+
+ if (need_notify) {
+ qmt_seed_glbe(env, lqe_gl->lqe_glbl_data);
+ qmt_id_lock_notify(qmt, lqe_gl);
+ }
+}
+
+inline void qti_lqes_init(const struct lu_env *env)
+{
+ struct qmt_thread_info *qti = qmt_info(env);
+
+ qti->qti_lqes_cnt = 0;
+ qti->qti_glbl_lqe_idx = 0;
+ qti->qti_lqes_num = QMT_MAX_POOL_NUM;
+}
+
+inline int qti_lqes_add(const struct lu_env *env, struct lquota_entry *lqe)
+{
+ struct qmt_thread_info *qti = qmt_info(env);
+
+ if (qti->qti_lqes_cnt > qti->qti_lqes_num) {
+ struct lquota_entry **lqes;
+ lqes = qti->qti_lqes;
+ OBD_ALLOC(lqes, sizeof(lqe) * qti->qti_lqes_num * 2);
+ if (!lqes)
+ return -ENOMEM;
+ memcpy(lqes, qti_lqes(env), qti->qti_lqes_cnt * sizeof(lqe));
+ /* Don't need to free, if it is the very 1st allocation */
+ if (qti->qti_lqes_num > QMT_MAX_POOL_NUM)
+ OBD_FREE(qti->qti_lqes,
+ qti->qti_lqes_num * sizeof(lqe));
+ qti->qti_lqes = lqes;
+ qti->qti_lqes_num *= 2;
}
+
+ if (lqe->lqe_is_global)
+ qti->qti_glbl_lqe_idx = qti->qti_lqes_cnt;
+ qti_lqes(env)[qti->qti_lqes_cnt++] = lqe;
+
+ /* The pool could be accessed directly from lqe, so take
+ * extra reference that is put in qti_lqes_fini */
+ qpi_getref(lqe2qpi(lqe));
+
+ CDEBUG(D_QUOTA, "LQE %p %lu is added, lqe_cnt %d lqes_num %d\n",
+ lqe, (long unsigned)lqe->lqe_id.qid_uid,
+ qti->qti_lqes_cnt, qti->qti_lqes_num);
+ LASSERT(qti->qti_lqes_num != 0);
+
+ return 0;
+}
+
+inline void qti_lqes_del(const struct lu_env *env, int index)
+{
+ struct lquota_entry **lqes;
+ int lqes_cnt = qti_lqes_cnt(env);
+ int lqep_size = sizeof(struct lquota_entry *);
+
+ if (index == 0) {
+ /* We can't handle non global lqes correctly without
+ * global lqe located at index 0. If we try to do so,
+ * something goes wrong. */
+ LQUOTA_ERROR(qti_lqes_glbl(env),
+ "quota: cannot remove lqe at index 0 as it is global");
+ LASSERT(qti_lqes_glbl(env)->lqe_is_global);
+ return;
+ }
+ lqes = qti_lqes(env);
+ qpi_putref(env, lqe2qpi(lqes[index]));
+ lqe_putref(lqes[index]);
+ memcpy((unsigned char *)lqes + index * lqep_size,
+ (unsigned char *)lqes + (index + 1) * lqep_size,
+ (lqes_cnt - index - 1) * lqep_size);
+ qti_lqes_cnt(env)--;
+}
+
+inline void qti_lqes_fini(const struct lu_env *env)
+{
+ struct qmt_thread_info *qti = qmt_info(env);
+ struct lquota_entry **lqes = qti->qti_lqes;
+ int i;
+
+ lqes = qti_lqes(env);
+ for (i = 0; i < qti->qti_lqes_cnt; i++) {
+ qpi_putref(env, lqe2qpi(lqes[i]));
+ lqe_putref(lqes[i]);
+ }
+
+ if (qti->qti_lqes_num > QMT_MAX_POOL_NUM)
+ OBD_FREE(qti->qti_lqes,
+ qti->qti_lqes_num * sizeof(struct lquota_entry *));
+}
+
+inline int qti_lqes_min_qunit(const struct lu_env *env)
+{
+ int i, min, qunit;
+
+ for (i = 1, min = qti_lqe_qunit(env, 0); i < qti_lqes_cnt(env); i++) {
+ qunit = qti_lqe_qunit(env, i);
+ if (qunit < min)
+ min = qunit;
+ }
+
+ return min;
+}
+
+inline int qti_lqes_edquot(const struct lu_env *env)
+{
+ int i;
+
+ for (i = 0; i < qti_lqes_cnt(env); i++) {
+ if (qti_lqes(env)[i]->lqe_edquot)
+ return 1;
+ }
+
+ return 0;
+}
+
+inline int qti_lqes_restore_init(const struct lu_env *env)
+{
+ int rc = 0;
+
+ if (qti_lqes_cnt(env) > QMT_MAX_POOL_NUM) {
+ OBD_ALLOC(qmt_info(env)->qti_lqes_rstr,
+ qti_lqes_cnt(env) * sizeof(struct qmt_lqe_restore));
+ if (!qti_lqes_rstr(env))
+ rc = -ENOMEM;
+ }
+
+ return rc;
+}
+
+inline void qti_lqes_restore_fini(const struct lu_env *env)
+{
+ if (qti_lqes_cnt(env) > QMT_MAX_POOL_NUM)
+ OBD_FREE(qmt_info(env)->qti_lqes_rstr,
+ qti_lqes_cnt(env) * sizeof(struct qmt_lqe_restore));
+}
+
+inline void qti_lqes_write_lock(const struct lu_env *env)
+{
+ int i;
+
+ for (i = 0; i < qti_lqes_cnt(env); i++)
+ lqe_write_lock(qti_lqes(env)[i]);
+}
+
+inline void qti_lqes_write_unlock(const struct lu_env *env)
+{
+ int i;
+
+ for (i = 0; i < qti_lqes_cnt(env); i++)
+ lqe_write_unlock(qti_lqes(env)[i]);
+}
+
+#define QMT_INIT_SLV_CNT 64
+struct lqe_glbl_data *qmt_alloc_lqe_gd(struct qmt_pool_info *pool, int qtype)
+{
+ struct lqe_glbl_data *lgd;
+ struct lqe_glbl_entry *lqeg_arr;
+ int slv_cnt, glbe_num;
+
+ OBD_ALLOC(lgd, sizeof(struct lqe_glbl_data));
+ if (!lgd)
+ RETURN(NULL);
+
+ slv_cnt = qpi_slv_nr_by_rtype(pool, qtype);
+
+ glbe_num = slv_cnt < QMT_INIT_SLV_CNT ? QMT_INIT_SLV_CNT : slv_cnt;
+ OBD_ALLOC(lqeg_arr, sizeof(struct lqe_glbl_entry) * glbe_num);
+ if (!lqeg_arr) {
+ OBD_FREE(lgd, sizeof(struct lqe_glbl_data));
+ RETURN(NULL);
+ }
+
+ CDEBUG(D_QUOTA, "slv_cnt %d glbe_num %d\n", slv_cnt, glbe_num);
+
+ lgd->lqeg_num_used = slv_cnt;
+ lgd->lqeg_num_alloc = glbe_num;
+ lgd->lqeg_arr = lqeg_arr;
+
+ RETURN(lgd);
+}
+
+void qmt_free_lqe_gd(struct lqe_glbl_data *lgd)
+{
+ OBD_FREE(lgd->lqeg_arr,
+ sizeof(struct lqe_glbl_entry) * lgd->lqeg_num_alloc);
+ OBD_FREE(lgd, sizeof(struct lqe_glbl_data));
+}
+
+void qmt_seed_glbe_all(const struct lu_env *env, struct lqe_glbl_data *lgd,
+ bool qunit, bool edquot)
+{
+ struct rw_semaphore *sem = NULL;
+ struct qmt_pool_info *qpi;
+ int i, j, idx;
+ ENTRY;
+
+ /* lqes array is sorted by qunit - the first entry has minimum qunit.
+ * Thus start seeding global qunit's array beginning from the 1st lqe
+ * and appropriate pool. If pools overlapped, slaves from this
+ * overlapping get minimum qunit value.
+ * user1: pool1, pool2, pool_glbl;
+ * pool1: OST1; user1_qunit = 10M;
+ * pool2: OST0, OST1, OST2; user1_qunit = 30M;
+ * pool_glbl: OST0, OST1, OST2, OST3; user1_qunit = 160M;
+ * qunit array after seeding should be:
+ * OST0: 30M; OST1: 10M; OST2: 30M; OST3: 160M; */
+
+ /* edquot resetup algorythm works fine
+ * with not sorted lqes */
+ if (qunit)
+ qmt_lqes_sort(env);
+
+ for (i = 0; i < lgd->lqeg_num_used; i++) {
+ lgd->lqeg_arr[i].lge_qunit_set = 0;
+ lgd->lqeg_arr[i].lge_qunit_nu = 0;
+ lgd->lqeg_arr[i].lge_edquot_nu = 0;
+ }
+
+ for (i = 0; i < qti_lqes_cnt(env); i++) {
+ struct lquota_entry *lqe = qti_lqes(env)[i];
+ int slaves_cnt;
+
+ CDEBUG(D_QUOTA, "lqes_cnt %d, i %d\n", qti_lqes_cnt(env), i);
+ qpi = lqe2qpi(lqe);
+ if (qmt_pool_global(qpi)) {
+ slaves_cnt = qpi_slv_nr_by_rtype(lqe2qpi(lqe),
+ lqe_qtype(lqe));
+ } else {
+ sem = qmt_sarr_rwsem(qpi);
+ down_read(sem);
+ slaves_cnt = qmt_sarr_count(qpi);
+ }
+
+ for (j = 0; j < slaves_cnt; j++) {
+ idx = qmt_sarr_get_idx(qpi, j);
+ LASSERT(idx >= 0);
+
+ if (edquot) {
+ int lge_edquot, new_edquot, edquot_nu;
+
+ lge_edquot = lgd->lqeg_arr[idx].lge_edquot;
+ edquot_nu = lgd->lqeg_arr[idx].lge_edquot_nu;
+ new_edquot = lqe->lqe_edquot;
+
+ if (lge_edquot == new_edquot ||
+ (edquot_nu && lge_edquot == 1))
+ goto qunit_lbl;
+ lgd->lqeg_arr[idx].lge_edquot = new_edquot;
+ /* it is needed for the following case:
+ * initial values for idx i -
+ * lqe_edquot = 1, lqe_edquot_nu == 0;
+ * 1: new_edquot == 0 ->
+ * lqe_edquot = 0, lqe_edquot_nu = 1;
+ * 2: new_edquot == 1 ->
+ * lqe_edquot = 1, lqe_edquot_nu = 0;
+ * At the 2nd iteration lge_edquot comes back
+ * to 1, so no changes and we don't need
+ * to notify slave. */
+ lgd->lqeg_arr[idx].lge_edquot_nu = !edquot_nu;
+ }
+qunit_lbl:
+ if (qunit) {
+ __u64 lge_qunit, new_qunit;
+
+ CDEBUG(D_QUOTA,
+ "idx %d lge_qunit_set %d lge_qunit %llu new_qunit %llu\n",
+ idx, lgd->lqeg_arr[idx].lge_qunit_set,
+ lgd->lqeg_arr[idx].lge_qunit,
+ lqe->lqe_qunit);
+ /* lge for this idx is already set
+ * on previous iteration */
+ if (lgd->lqeg_arr[idx].lge_qunit_set)
+ continue;
+ lge_qunit = lgd->lqeg_arr[idx].lge_qunit;
+ new_qunit = lqe->lqe_qunit;
+ /* qunit could be not set,
+ * so use global lqe's qunit */
+ if (!new_qunit)
+ continue;
+
+ if (lge_qunit != new_qunit)
+ lgd->lqeg_arr[idx].lge_qunit =
+ new_qunit;
+
+ /* TODO: initially slaves notification was done
+ * only for qunit shrinking. Should we always
+ * notify slaves with new qunit ? */
+ if (lge_qunit > new_qunit)
+ lgd->lqeg_arr[idx].lge_qunit_nu = 1;
+ lgd->lqeg_arr[idx].lge_qunit_set = 1;
+ }
+ }
+
+ if (!qmt_pool_global(qpi))
+ up_read(sem);
+ }
+ /* TODO: only for debug purposes - remove it later */
+ for (i = 0; i < lgd->lqeg_num_used; i++)
+ CDEBUG(D_QUOTA,
+ "lgd ost %d, qunit %lu nu %d; edquot %d nu %d\n",
+ i, (long unsigned)lgd->lqeg_arr[i].lge_qunit,
+ lgd->lqeg_arr[i].lge_qunit_nu,
+ lgd->lqeg_arr[i].lge_edquot,
+ lgd->lqeg_arr[i].lge_edquot_nu);
+
+ EXIT;
+}
+
+void qmt_setup_lqe_gd(const struct lu_env *env, struct qmt_device *qmt,
+ struct lquota_entry *lqe, struct lqe_glbl_data *lgd,
+ int pool_type)
+{
+ __u64 qunit;
+ bool edquot;
+ int i;
+
+ qunit = lqe->lqe_qunit;
+ edquot = lqe->lqe_edquot;
+
+ /* Firstly set all elements in array with
+ * qunit and edquot of global pool */
+ for (i = 0; i < lgd->lqeg_num_used; i++) {
+ lgd->lqeg_arr[i].lge_qunit = qunit;
+ lgd->lqeg_arr[i].lge_edquot = edquot;
+ /* It is the very first lvb setup - qunit and other flags
+ * will be sent to slaves during qmt_lvbo_fill. */
+ lgd->lqeg_arr[i].lge_qunit_nu = 0;
+ lgd->lqeg_arr[i].lge_edquot_nu = 0;
+ }
+
+ qmt_pool_lqes_lookup_spec(env, qmt, pool_type,
+ lqe_qtype(lqe), &lqe->lqe_id);
+ qmt_seed_glbe(env, lgd);
+
+ lqe->lqe_glbl_data = lgd;
+ qmt_id_lock_notify(qmt, lqe);
+
+ qti_lqes_fini(env);
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff