svn commit: r284314 - stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs

[Andriy Gapon]

Author: avg
Date: Fri Jun 12 11:52:32 2015
New Revision: 284314
URL: https://svnweb.freebsd.org/changeset/base/284314

Log:
  MFC r283525: zfs: fixes for a full stream received into an existing dataset

Modified:
  stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/cddl/contrib/opensolaris/   (props changed)

Modified: stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c
==============================================================================
--- stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c	Fri Jun 12 11:49:05 2015	(r284313)
+++ stable/9/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dmu_send.c	Fri Jun 12 11:52:32 2015	(r284314)
@@ -858,10 +858,12 @@ recv_begin_check_existing_impl(dmu_recv_
 
 		dsl_dataset_rele(snap, FTAG);
 	} else {
-		/* if full, most recent snapshot must be $ORIGIN */
-		if (ds->ds_phys->ds_prev_snap_txg >= TXG_INITIAL)
-			return (SET_ERROR(ENODEV));
-		drba->drba_snapobj = ds->ds_phys->ds_prev_snap_obj;
+		/* if full, then must be forced */
+		if (!drba->drba_cookie->drc_force)
+			return (SET_ERROR(EEXIST));
+		/* start from $ORIGIN@$ORIGIN, if supported */
+		drba->drba_snapobj = dp->dp_origin_snap != NULL ?
+		    dp->dp_origin_snap->ds_object : 0;
 	}
 
 	return (0);