objset_phys_t
static int objset_get_dnode(const spa_t *, const objset_phys_t *, uint64_t,
vdev_indirect_mapping_t *vdev_indirect_mapping_open(spa_t *, objset_phys_t *,
vdev_indirect_mapping_open(spa_t *spa, objset_phys_t *os,
objset_get_dnode(const spa_t *spa, const objset_phys_t *os, uint64_t objnum,
zfs_mount_dataset(const spa_t *spa, uint64_t objnum, objset_phys_t *objset)
objset_phys_t objset;
objset_phys_t *vim_objset;
objset_phys_t *spa_mos; /* MOS for this pool */
objset_phys_t spa_mos_master; /* MOS for this pool */
objset_phys_t spa_mos_checkpoint; /* Checkpoint MOS */
objset_phys_t *phys;
os->osblksz = sizeof(objset_phys_t);