vtoc_ds5ext 167 arch/s390/include/uapi/asm/vtoc.h struct vtoc_ds5ext DS5AVEXT; /* first available (free-space) extent. */ vtoc_ds5ext 168 arch/s390/include/uapi/asm/vtoc.h struct vtoc_ds5ext DS5EXTAV[7]; /* seven available extents */ vtoc_ds5ext 170 arch/s390/include/uapi/asm/vtoc.h struct vtoc_ds5ext DS5MAVET[18]; /* eighteen available extents */