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-rw-r--r--module/zfs/dmu_recv.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/module/zfs/dmu_recv.c b/module/zfs/dmu_recv.c
index 976b1bd46..65a031b42 100644
--- a/module/zfs/dmu_recv.c
+++ b/module/zfs/dmu_recv.c
@@ -158,9 +158,16 @@ recv_begin_check_existing_impl(dmu_recv_begin_arg_t *drba, dsl_dataset_t *ds,
} else {
/*
* If we are not forcing, there must be no
- * changes since fromsnap.
+ * changes since fromsnap. Raw sends have an
+ * additional constraint that requires that
+ * no "noop" snapshots exist between fromsnap
+ * and tosnap for the IVset checking code to
+ * work properly.
*/
- if (dsl_dataset_modified_since_snap(ds, snap)) {
+ if (dsl_dataset_modified_since_snap(ds, snap) ||
+ (raw &&
+ dsl_dataset_phys(ds)->ds_prev_snap_obj !=
+ snap->ds_object)) {
dsl_dataset_rele(snap, FTAG);
return (SET_ERROR(ETXTBSY));
}