Symbol: spa_get_last_removal_txg
usr/src/uts/common/fs/zfs/dmu_objset.c
1430
last_removed_txg = spa_get_last_removal_txg(dmu_objset_spa(os));
usr/src/uts/common/fs/zfs/sys/spa.h
1001
extern uint64_t spa_get_last_removal_txg(spa_t *spa);