static dmu_buf_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, uint64_t parent,
struct osd_thandle *oh)
{
dmu_buf_t *db;
int rc;
struct osd_device *osd = osd_obj2dev(obj);
LASSERT(S_ISREG(la->la_mode));
rc = __osd_object_create(env, obj, &db, oh->ot_tx, la, parent);
if (rc)
return ERR_PTR(rc);
/*
* XXX: This heuristic is non-optimal. It would be better to
* increase the blocksize up to osd->od_max_blksz during the write.
* This is exactly how the ZPL behaves and it ensures that the right
* blocksize is selected based on the file size rather than the
* making broad assumptions based on the osd type.
*/
if (!lu_device_is_md(osd2lu_dev(osd))) {
rc = -dmu_object_set_blocksize(osd->od_os, db->db_object,
osd->od_max_blksz, 0, oh->ot_tx);
if (unlikely(rc)) {
CERROR("%s: can't change blocksize: %d\n",
osd->od_svname, rc);
return ERR_PTR(rc);
}
}
return db;
}
static dmu_buf_t* osd_mkreg(const struct lu_env *env, struct osd_device *osd,
struct lu_attr *la, struct osd_thandle *oh)
{
dmu_buf_t *db;
int rc;
LASSERT(S_ISREG(la->la_mode));
rc = __osd_object_create(env, &osd->od_objset, &db, oh->ot_tx, la,
osd_obj_tag);
if (rc)
return ERR_PTR(rc);
/*
* XXX: a hack, OST to use bigger blocksize. we need
* a method in OSD API to control this from OFD/MDD
*/
if (!lu_device_is_md(osd2lu_dev(osd))) {
rc = -dmu_object_set_blocksize(osd->od_objset.os,
db->db_object,
128 << 10, 0, oh->ot_tx);
if (unlikely(rc)) {
CERROR("%s: can't change blocksize: %d\n",
osd->od_svname, rc);
return ERR_PTR(rc);
}
}
return db;
}
static dmu_buf_t *osd_mkreg(const struct lu_env *env, struct osd_object *obj,
struct lu_attr *la, uint64_t parent,
struct osd_thandle *oh)
{
dmu_buf_t *db;
int rc;
struct osd_device *osd = osd_obj2dev(obj);
LASSERT(S_ISREG(la->la_mode));
rc = __osd_object_create(env, obj, &db, oh->ot_tx, la, parent);
if (rc)
return ERR_PTR(rc);
if (!lu_device_is_md(osd2lu_dev(osd))) {
/* uses 4K as default block size because clients write data
* with page size that is 4K at minimum */
rc = -dmu_object_set_blocksize(osd->od_os, db->db_object,
4096, 0, oh->ot_tx);
if (unlikely(rc)) {
CERROR("%s: can't change blocksize: %d\n",
osd->od_svname, rc);
return ERR_PTR(rc);
}
}
return db;
}
/*
* Initialize on-disk structures in order to manage quota enforcement for
* the target associated with the qsd instance \qsd and starts the reintegration
* procedure for each quota type as soon as possible.
* The last step of the reintegration will be completed once qsd_start() is
* called, at which points the space reconciliation with the master will be
* executed.
* This function must be called when the server stack is fully configured,
* typically when ->ldo_prepare is called across the stack.
*
* \param env - the environment passed by the caller
* \param qsd - is qsd_instance to prepare
*
* \retval - 0 on success, appropriate error on failure
*/
int qsd_prepare(const struct lu_env *env, struct qsd_instance *qsd)
{
struct qsd_thread_info *qti = qsd_info(env);
int qtype, rc = 0;
ENTRY;
if (unlikely(qsd == NULL))
RETURN(0);
read_lock(&qsd->qsd_lock);
if (qsd->qsd_prepared) {
CERROR("%s: qsd instance already prepared\n", qsd->qsd_svname);
rc = -EALREADY;
}
read_unlock(&qsd->qsd_lock);
if (rc)
RETURN(rc);
/* Record whether this qsd instance is managing quota enforcement for a
* MDT (i.e. inode quota) or OST (block quota) */
if (lu_device_is_md(qsd->qsd_dev->dd_lu_dev.ld_site->ls_top_dev)) {
qsd->qsd_is_md = true;
qsd->qsd_sync_threshold = LQUOTA_LEAST_QUNIT(LQUOTA_RES_MD);
} else {
qsd->qsd_sync_threshold = LQUOTA_LEAST_QUNIT(LQUOTA_RES_DT);
}
/* look-up on-disk directory for the quota slave */
qsd->qsd_root = lquota_disk_dir_find_create(env, qsd->qsd_dev, NULL,
QSD_DIR);
if (IS_ERR(qsd->qsd_root)) {
rc = PTR_ERR(qsd->qsd_root);
qsd->qsd_root = NULL;
CERROR("%s: failed to create quota slave root dir (%d)\n",
qsd->qsd_svname, rc);
RETURN(rc);
}
/* initialize per-quota type data */
for (qtype = USRQUOTA; qtype < MAXQUOTAS; qtype++) {
rc = qsd_qtype_init(env, qsd, qtype);
if (rc)
RETURN(rc);
}
/* pools successfully setup, mark the qsd as prepared */
write_lock(&qsd->qsd_lock);
qsd->qsd_prepared = true;
write_unlock(&qsd->qsd_lock);
/* start reintegration thread for each type, if required */
for (qtype = USRQUOTA; qtype < MAXQUOTAS; qtype++) {
struct qsd_qtype_info *qqi = qsd->qsd_type_array[qtype];
if (qsd_type_enabled(qsd, qtype) && qsd->qsd_acct_failed) {
LCONSOLE_ERROR("%s: can't enable quota enforcement "
"since space accounting isn't functional"
". Please run tunefs.lustre --quota on "
"an unmounted filesystem if not done "
"already\n", qsd->qsd_svname);
break;
}
rc = qsd_start_reint_thread(qqi);
if (rc) {
CERROR("%s: failed to start reint thread for type %s "
"(%d)\n", qsd->qsd_svname, QTYPE_NAME(qtype),
rc);
RETURN(rc);
}
}
/* start writeback thread */
rc = qsd_start_upd_thread(qsd);
if (rc) {
CERROR("%s: failed to start writeback thread (%d)\n",
qsd->qsd_svname, rc);
RETURN(rc);
}
/* generate osp name */
rc = tgt_name2lwp_name(qsd->qsd_svname, qti->qti_buf,
MTI_NAME_MAXLEN, 0);
if (rc) {
CERROR("%s: failed to generate ospname (%d)\n",
qsd->qsd_svname, rc);
RETURN(rc);
}
/* the connection callback will start the reintegration
* procedure if quota is enabled */
rc = lustre_register_lwp_item(qti->qti_buf, &qsd->qsd_exp,
qsd_conn_callback, (void *)qsd);
if (rc) {
CERROR("%s: fail to get connection to master (%d)\n",
qsd->qsd_svname, rc);
RETURN(rc);
}
RETURN(0);
}
/*
* Helper routine to retrieve slave information.
* This function converts a quotactl request into quota/accounting object
* operations. It is independant of the slave stack which is only accessible
* from the OSD layer.
*
* \param env - is the environment passed by the caller
* \param dev - is the dt_device this quotactl is executed on
* \param oqctl - is the quotactl request
*/
int lquotactl_slv(const struct lu_env *env, struct dt_device *dev,
struct obd_quotactl *oqctl)
{
struct lquota_thread_info *qti = lquota_info(env);
__u64 key;
struct dt_object *obj;
struct obd_dqblk *dqblk = &oqctl->qc_dqblk;
int rc;
ENTRY;
if (oqctl->qc_cmd != Q_GETOQUOTA) {
/* as in many other places, dev->dd_lu_dev.ld_obd->obd_name
* point to an invalid obd_name, to be fixed in LU-1574 */
CERROR("%s: Unsupported quotactl command: %x\n",
dev->dd_lu_dev.ld_obd->obd_name, oqctl->qc_cmd);
RETURN(-EOPNOTSUPP);
}
if (oqctl->qc_type < 0 || oqctl->qc_type >= LL_MAXQUOTAS)
RETURN(-EOPNOTSUPP);
/* qc_id is a 32-bit field while a key has 64 bits */
key = oqctl->qc_id;
/* Step 1: collect accounting information */
obj = acct_obj_lookup(env, dev, oqctl->qc_type);
if (IS_ERR(obj))
RETURN(-EOPNOTSUPP);
if (obj->do_index_ops == NULL)
GOTO(out, rc = -EINVAL);
/* lookup record storing space accounting information for this ID */
rc = dt_lookup(env, obj, (struct dt_rec *)&qti->qti_acct_rec,
(struct dt_key *)&key);
if (rc < 0)
GOTO(out, rc);
memset(&oqctl->qc_dqblk, 0, sizeof(struct obd_dqblk));
dqblk->dqb_curspace = qti->qti_acct_rec.bspace;
dqblk->dqb_curinodes = qti->qti_acct_rec.ispace;
dqblk->dqb_valid = QIF_USAGE;
dt_object_put(env, obj);
/* Step 2: collect enforcement information */
obj = quota_obj_lookup(env, dev, oqctl->qc_type);
if (IS_ERR(obj))
RETURN(0);
if (obj->do_index_ops == NULL)
GOTO(out, rc = 0);
memset(&qti->qti_slv_rec, 0, sizeof(qti->qti_slv_rec));
/* lookup record storing enforcement information for this ID */
rc = dt_lookup(env, obj, (struct dt_rec *)&qti->qti_slv_rec,
(struct dt_key *)&key);
if (rc < 0 && rc != -ENOENT)
GOTO(out, rc = 0);
if (lu_device_is_md(dev->dd_lu_dev.ld_site->ls_top_dev)) {
dqblk->dqb_ihardlimit = qti->qti_slv_rec.qsr_granted;
dqblk->dqb_bhardlimit = 0;
} else {
dqblk->dqb_ihardlimit = 0;
dqblk->dqb_bhardlimit = qti->qti_slv_rec.qsr_granted;
}
dqblk->dqb_valid |= QIF_LIMITS;
GOTO(out, rc = 0);
out:
dt_object_put(env, obj);
return rc;
}