zfeature_register
zfeature_register(SPA_FEATURE_ASYNC_DESTROY,
zfeature_register(SPA_FEATURE_EMPTY_BPOBJ,
zfeature_register(SPA_FEATURE_LZ4_COMPRESS,
zfeature_register(SPA_FEATURE_MULTI_VDEV_CRASH_DUMP,
zfeature_register(SPA_FEATURE_SPACEMAP_HISTOGRAM,
zfeature_register(SPA_FEATURE_ENABLED_TXG,
zfeature_register(SPA_FEATURE_HOLE_BIRTH,
zfeature_register(SPA_FEATURE_POOL_CHECKPOINT,
zfeature_register(SPA_FEATURE_SPACEMAP_V2,
zfeature_register(SPA_FEATURE_EXTENSIBLE_DATASET,
zfeature_register(SPA_FEATURE_BOOKMARKS,
zfeature_register(SPA_FEATURE_FS_SS_LIMIT,
zfeature_register(SPA_FEATURE_EMBEDDED_DATA,
zfeature_register(SPA_FEATURE_LOG_SPACEMAP,
zfeature_register(SPA_FEATURE_LARGE_BLOCKS,
zfeature_register(SPA_FEATURE_LARGE_DNODE,
zfeature_register(SPA_FEATURE_SHA512,
zfeature_register(SPA_FEATURE_SKEIN,
zfeature_register(SPA_FEATURE_EDONR,
zfeature_register(SPA_FEATURE_DEVICE_REMOVAL,
zfeature_register(SPA_FEATURE_OBSOLETE_COUNTS,
zfeature_register(SPA_FEATURE_USEROBJ_ACCOUNTING,
zfeature_register(SPA_FEATURE_BOOKMARK_V2,
zfeature_register(SPA_FEATURE_ENCRYPTION,
zfeature_register(SPA_FEATURE_PROJECT_QUOTA,
zfeature_register(SPA_FEATURE_ALLOCATION_CLASSES,
zfeature_register(SPA_FEATURE_RESILVER_DEFER,