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-rw-r--r--tools/blktap/lib/blktaplib.h2
-rw-r--r--tools/blktap2/include/blktaplib.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/tools/blktap/lib/blktaplib.h b/tools/blktap/lib/blktaplib.h
index d54ae3e57b..47dcdff05b 100644
--- a/tools/blktap/lib/blktaplib.h
+++ b/tools/blktap/lib/blktaplib.h
@@ -42,7 +42,7 @@
#include <sys/types.h>
#include <unistd.h>
-#define BLK_RING_SIZE __RING_SIZE((blkif_sring_t *)0, XC_PAGE_SIZE)
+#define BLK_RING_SIZE __CONST_RING_SIZE(blkif, XC_PAGE_SIZE)
/* size of the extra VMA area to map in attached pages. */
#define BLKTAP_VMA_PAGES BLK_RING_SIZE
diff --git a/tools/blktap2/include/blktaplib.h b/tools/blktap2/include/blktaplib.h
index b928240911..d91a29b25f 100644
--- a/tools/blktap2/include/blktaplib.h
+++ b/tools/blktap2/include/blktaplib.h
@@ -45,7 +45,7 @@
#define EPRINTF(_f, _a...) syslog(LOG_ERR, "tap-err:%s: " _f, __func__, ##_a)
#define PERROR(_f, _a...) EPRINTF(_f ": %s", ##_a, strerror(errno))
-#define BLK_RING_SIZE __RING_SIZE((blkif_sring_t *)0, XC_PAGE_SIZE)
+#define BLK_RING_SIZE __CONST_RING_SIZE(blkif, XC_PAGE_SIZE)
/* size of the extra VMA area to map in attached pages. */
#define BLKTAP_VMA_PAGES BLK_RING_SIZE