fs/zfs/dmu_send.c

83 static void byteswap_record(dmu_replay_record_t *drr);
738 	dmu_replay_record_t *drr;
751 	drr = kmem_zalloc(sizeof (dmu_replay_record_t), KM_SLEEP);
752 	drr->drr_type = DRR_BEGIN;
753 	drr->drr_u.drr_begin.drr_magic = DMU_BACKUP_MAGIC;
754 	DMU_SET_STREAM_HDRTYPE(drr->drr_u.drr_begin.drr_versioninfo,
761 			kmem_free(drr, sizeof (dmu_replay_record_t));
784 	DMU_SET_FEATUREFLAGS(drr->drr_u.drr_begin.drr_versioninfo,
787 	drr->drr_u.drr_begin.drr_creation_time =
789 	drr->drr_u.drr_begin.drr_type = dmu_objset_type(os);
791 		drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_CLONE;
792 	drr->drr_u.drr_begin.drr_toguid = dsl_dataset_phys(to_ds)->ds_guid;
794 		drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_CI_DATA;
796 		drr->drr_u.drr_begin.drr_flags |= DRR_FLAG_FREERECORDS;
799 		drr->drr_u.drr_begin.drr_fromguid =
803 	dsl_dataset_name(to_ds, drr->drr_u.drr_begin.drr_toname);
805 		(void) strlcat(drr->drr_u.drr_begin.drr_toname, "@--head--",
806 		    sizeof (drr->drr_u.drr_begin.drr_toname));
811 	dsp->dsa_drr = drr;
845 		drr->drr_payloadlen = payload_len;
902 	bzero(drr, sizeof (dmu_replay_record_t));
903 	drr->drr_type = DRR_END;
904 	drr->drr_u.drr_end.drr_checksum = dsp->dsa_zc;
905 	drr->drr_u.drr_end.drr_toguid = dsp->dsa_toguid;
915 	kmem_free(drr, sizeof (dmu_replay_record_t));
1872 byteswap_record(dmu_replay_record_t *drr)
1874 #define	DO64(X) (drr->drr_u.X = BSWAP_64(drr->drr_u.X))
1875 #define	DO32(X) (drr->drr_u.X = BSWAP_32(drr->drr_u.X))
1876 	drr->drr_type = BSWAP_32(drr->drr_type);
1877 	drr->drr_payloadlen = BSWAP_32(drr->drr_payloadlen);
1879 	switch (drr->drr_type) {
1908 		ZIO_CHECKSUM_BSWAP(&drr->drr_u.drr_write.drr_key.ddk_cksum);
1919 		ZIO_CHECKSUM_BSWAP(&drr->drr_u.drr_write_byref.
1944 		ZIO_CHECKSUM_BSWAP(&drr->drr_u.drr_end.drr_checksum);
1948 	if (drr->drr_type != DRR_BEGIN) {
1949 		ZIO_CHECKSUM_BSWAP(&drr->drr_u.drr_checksum.drr_checksum);