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; }