The LSPACE macro now allows the caller to have obtained the SYSVTOC ENQ resource on the volume prior to calling LSPACE for that volume. A new ENQHELD keyword on the LSPACE macro specifies whether or not the LSPACE caller's address space has already obtained the SYSVTOC resource.
For more information, refer to the topic about LSPACE in z/OS DFSMSdfp Advanced Services. For new diagnostic codes, refer to the topic about DADSM LSPACE return and diagnostic codes in z/OS DFSMSdfp Diagnosis.