Imported Upstream version 0.6.5.8

[mirror_zfs-debian.git] / include / sys / spa.h

diff --git a/include/sys/spa.h b/include/sys/spa.h
index 5dc9084dad6b5a5479abe399072db0d300e6ce33..bfd2e7902ea3cc52178d8e122c1c013533cfa702 100644 (file)
--- a/include/sys/spa.h
+++ b/include/sys/spa.h
@@ -446,6 +446,10 @@ _NOTE(CONSTCOND) } while (0)
        ((zc1).zc_word[2] - (zc2).zc_word[2]) | \
        ((zc1).zc_word[3] - (zc2).zc_word[3])))
 
+#define        ZIO_CHECKSUM_IS_ZERO(zc) \
+       (0 == ((zc)->zc_word[0] | (zc)->zc_word[1] | \
+       (zc)->zc_word[2] | (zc)->zc_word[3]))
+
 #define        DVA_IS_VALID(dva)       (DVA_GET_ASIZE(dva) != 0)
 
 #define        ZIO_SET_CHECKSUM(zcp, w0, w1, w2, w3)   \