dmu_replay_record
const struct dmu_replay_record *, int, uint64_t *, uint64_t *,
struct dmu_replay_record;
boolean_t, boolean_t, int, const struct dmu_replay_record *);
struct dmu_replay_record *drc_drr_begin;
struct dmu_replay_record *drr_begin, boolean_t force, boolean_t resumable,
struct dmu_replay_record;