pad struct to improve hazard performance, fix off-by-one error

[nbds] / include / common.h

diff --git a/include/common.h b/include/common.h
index 9abf743face43c88fd48a0be811ced272819e56b..c644bb5631f0ab480c0e756f62bb53aa4118f4dd 100644 (file)
--- a/include/common.h
+++ b/include/common.h
@@ -11,10 +11,6 @@
 #include <string.h>
 #include <sys/types.h>
 
-#define malloc "DON'T USE MALLOC" // use nbd_malloc() instead
-#define calloc "DON'T USE CALLOC" // use nbd_malloc() instead
-#define free   "DON'T USE FREE"   // use nbd_free() instead
-
 #define MAX_NUM_THREADS 4 // make this whatever you want, but make it a power of 2
 
 #define CACHE_LINE_SIZE 64
@@ -32,8 +28,13 @@
 #define TRUE  1
 #define FALSE 0
 
+#ifdef NBD32
+#define TAG1         (1U << 31)
+#define TAG2         (1U << 30)
+#else
 #define TAG1         (1ULL << 63)
 #define TAG2         (1ULL << 62)
+#endif
 #define TAG_VALUE(v, tag) ((v) |  tag)
 #define IS_TAGGED(v, tag) ((v) &  tag)
 #define STRIP_TAG(v, tag) ((v) & ~tag)
@@ -48,5 +49,7 @@ typedef unsigned long long uint64_t;
 typedef unsigned int       uint32_t;
 typedef unsigned char      uint8_t;
 
+typedef size_t markable_t;
+
 #include "lwt.h"
 #endif //COMMON_H