spa_history_phys_t
spa_history_phys_t *shp = data;
ASSERT(dbp->db_size >= sizeof (spa_history_phys_t));
spa_history_advance_bof(spa_t *spa, spa_history_phys_t *shpp)
spa_history_write(spa_t *spa, void *buf, uint64_t len, spa_history_phys_t *shpp,
spa_history_phys_t *shpp;
spa_history_phys_t *shpp;
spa_history_log_to_phys(uint64_t log_off, spa_history_phys_t *shpp)
spa_history_phys_t *shpp;
sizeof (spa_history_phys_t), tx);