Haoqian, > + if (!sdkp->lbpvpd) > + /* Disable discard if LBP VPD page not provided */ > + return SD_LBP_DISABLE; That is not a valid assumption. Many devices which support thin provisioning either predate the LBP VPD being defined or have decided not to support that page. The current heuristics are very deliberate. -- Martin K. Petersen Oracle Linux Engineering
