3525 Persistent L2ARC

@@ -20,10 +20,11 @@
  */
 /*
  * 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 2013 Saso Kiselkov. All rights reserved.
  */
 
 #ifndef _SYS_SPA_H
 #define _SYS_SPA_H
 

@@ -290,10 +291,21 @@
         (0 == (((zc1).zc_word[0] - (zc2).zc_word[0]) | \
         ((zc1).zc_word[1] - (zc2).zc_word[1]) | \
         ((zc1).zc_word[2] - (zc2).zc_word[2]) | \
         ((zc1).zc_word[3] - (zc2).zc_word[3])))
 
+#define ZIO_CHECKSUM_BSWAP(_zc) \
+        do { \
+                zio_cksum_t *zc = (_zc); \
+                zc->zc_word[0] = BSWAP_64(zc->zc_word[0]); \
+                zc->zc_word[1] = BSWAP_64(zc->zc_word[1]); \
+                zc->zc_word[2] = BSWAP_64(zc->zc_word[2]); \
+                zc->zc_word[3] = BSWAP_64(zc->zc_word[3]); \
+                _NOTE(NOTREACHED) \
+                _NOTE(CONSTCOND) \
+        } while (0)
+
 #define DVA_IS_VALID(dva)       (DVA_GET_ASIZE(dva) != 0)
 
 #define ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3)   \
 {                                               \
         (zcp)->zc_word[0] = w0;                 \