int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
u64 valid, u32 flags)
{
int type;
int rc = 0;
ENTRY;
if ((valid & (OBD_MD_FLALLQUOTA)) == 0)
RETURN(0);
for (type = 0; type < LL_MAXQUOTAS; type++) {
struct osc_quota_info *oqi;
if ((valid & md_quota_flag(type)) == 0)
continue;
/* lookup the ID in the per-type hash table */
oqi = cfs_hash_lookup(cli->cl_quota_hash[type], &qid[type]);
if ((flags & fl_quota_flag(type)) != 0) {
/* This ID is getting close to its quota limit, let's
* switch to sync I/O */
if (oqi != NULL)
continue;
oqi = osc_oqi_alloc(qid[type]);
if (oqi == NULL) {
rc = -ENOMEM;
break;
}
rc = cfs_hash_add_unique(cli->cl_quota_hash[type],
&qid[type], &oqi->oqi_hash);
/* race with others? */
if (rc == -EALREADY) {
rc = 0;
OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
}
CDEBUG(D_QUOTA, "%s: setdq to insert for %s %d (%d)\n",
cli_name(cli), qtype_name(type), qid[type], rc);
} else {
/* This ID is now off the hook, let's remove it from
* the hash table */
if (oqi == NULL)
continue;
oqi = cfs_hash_del_key(cli->cl_quota_hash[type],
&qid[type]);
if (oqi)
OBD_SLAB_FREE_PTR(oqi, osc_quota_kmem);
CDEBUG(D_QUOTA, "%s: setdq to remove for %s %d (%p)\n",
cli_name(cli), qtype_name(type), qid[type], oqi);
}
}
RETURN(rc);
}
static struct lustre_qunit_size *
quota_create_lqs(unsigned long long lqs_key, struct lustre_quota_ctxt *qctxt)
{
struct lustre_qunit_size *lqs = NULL;
cfs_hash_t *hs = NULL;
int rc = 0;
OBD_ALLOC_PTR(lqs);
if (!lqs)
GOTO(out, rc = -ENOMEM);
lqs->lqs_key = lqs_key;
cfs_spin_lock_init(&lqs->lqs_lock);
lqs->lqs_bwrite_pending = 0;
lqs->lqs_iwrite_pending = 0;
lqs->lqs_ino_rec = 0;
lqs->lqs_blk_rec = 0;
lqs->lqs_id = LQS_KEY_ID(lqs->lqs_key);
lqs->lqs_flags = LQS_KEY_GRP(lqs->lqs_key) ? LQUOTA_FLAGS_GRP : 0;
lqs->lqs_bunit_sz = qctxt->lqc_bunit_sz;
lqs->lqs_iunit_sz = qctxt->lqc_iunit_sz;
lqs->lqs_btune_sz = qctxt->lqc_btune_sz;
lqs->lqs_itune_sz = qctxt->lqc_itune_sz;
lqs->lqs_ctxt = qctxt;
if (qctxt->lqc_handler) {
lqs->lqs_last_bshrink = 0;
lqs->lqs_last_ishrink = 0;
}
lqs_initref(lqs);
cfs_spin_lock(&qctxt->lqc_lock);
if (qctxt->lqc_valid)
hs = cfs_hash_getref(qctxt->lqc_lqs_hash);
cfs_spin_unlock(&qctxt->lqc_lock);
if (hs) {
lqs_getref(lqs);
rc = cfs_hash_add_unique(qctxt->lqc_lqs_hash,
&lqs->lqs_key, &lqs->lqs_hash);
if (rc)
lqs_putref(lqs);
cfs_hash_putref(hs);
} else {
rc = -EBUSY;
}
out:
if (rc && lqs)
OBD_FREE_PTR(lqs);
if (rc)
return ERR_PTR(rc);
else
return lqs;
}