svn commit: r282630 - vendor-sys/illumos/dist/uts/common/fs/zfs

[Andriy Gapon]

Author: avg
Date: Fri May  8 13:55:24 2015
New Revision: 282630
URL: https://svnweb.freebsd.org/changeset/base/282630

Log:
  5809 Blowaway full receive in v1 pool causes kernel panic
  
  Author: Paul Dagnelie <pcd at delphix.com>
  Reviewed by: Matthew Ahrens <mahrens at delphix.com>
  Reviewed by: Alex Reece <alex at delphix.com>
  Reviewed by: Will Andrews <will at freebsd.org>
  Approved by: Gordon Ross <gwr at nexenta.com>
  
  illumos/illumos-gate at f40b29ce2a815bcc0787acf6f520a2b74258b785

Modified:
  vendor-sys/illumos/dist/uts/common/fs/zfs/dmu_send.c

Modified: vendor-sys/illumos/dist/uts/common/fs/zfs/dmu_send.c
==============================================================================
--- vendor-sys/illumos/dist/uts/common/fs/zfs/dmu_send.c	Fri May  8 12:55:25 2015	(r282629)
+++ vendor-sys/illumos/dist/uts/common/fs/zfs/dmu_send.c	Fri May  8 13:55:24 2015	(r282630)
@@ -1108,7 +1108,8 @@ dmu_recv_begin_sync(void *arg, dmu_tx_t 
 		}
 		dsobj = dsl_dataset_create_sync(ds->ds_dir, recv_clone_name,
 		    snap, crflags, drba->drba_cred, tx);
-		dsl_dataset_rele(snap, FTAG);
+		if (drba->drba_snapobj != 0)
+			dsl_dataset_rele(snap, FTAG);
 		dsl_dataset_rele(ds, FTAG);
 	} else {
 		dsl_dir_t *dd;