3756 want lz4 support for metadata compression

@@ -22,10 +22,11 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012 by Delphix. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
+ * Copyright (c) 2013 Martin Matuska. All rights reserved.
  */
 
 /* Portions Copyright 2010 Robert Milkowski */
 
 #ifndef _SYS_DMU_H

@@ -397,11 +398,11 @@
 #define WP_NOFILL       0x1
 #define WP_DMU_SYNC     0x2
 #define WP_SPILL        0x4
 
 void dmu_write_policy(objset_t *os, struct dnode *dn, int level, int wp,
-    struct zio_prop *zp);
+    struct zio_prop *zp, uint64_t txg);
 /*
  * The bonus data is accessed more or less like a regular buffer.
  * You must dmu_bonus_hold() to get the buffer, which will give you a
  * dmu_buf_t with db_offset==-1ULL, and db_size = the size of the bonus
  * data.  As with any normal buffer, you must call dmu_buf_read() to