OpenZFS 7004 - dmu_tx_hold_zap() does dnode_hold() 7x on same object

[mirror_zfs.git] / module / zfs / dbuf.c

diff --git a/module/zfs/dbuf.c b/module/zfs/dbuf.c
index d89d030d34dfd845a1383e69d2ea997cd4217c61..d297506e97ffa94a8b3094f9b46e1f6b416c101e 100644 (file)
--- a/module/zfs/dbuf.c
+++ b/module/zfs/dbuf.c
@@ -21,7 +21,7 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
- * Copyright (c) 2012, 2015 by Delphix. All rights reserved.
+ * Copyright (c) 2012, 2016 by Delphix. All rights reserved.
  * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
  * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
  */
@@ -2843,6 +2843,21 @@ dmu_buf_get_objset(dmu_buf_t *db)
        return (dbi->db_objset);
 }
 
+dnode_t *
+dmu_buf_dnode_enter(dmu_buf_t *db)
+{
+       dmu_buf_impl_t *dbi = (dmu_buf_impl_t *)db;
+       DB_DNODE_ENTER(dbi);
+       return (DB_DNODE(dbi));
+}
+
+void
+dmu_buf_dnode_exit(dmu_buf_t *db)
+{
+       dmu_buf_impl_t *dbi = (dmu_buf_impl_t *)db;
+       DB_DNODE_EXIT(dbi);
+}
+
 static void
 dbuf_check_blkptr(dnode_t *dn, dmu_buf_impl_t *db)
 {