Index: /trunk/src/VBox/Runtime/r3/fs.cpp
===================================================================
--- /trunk/src/VBox/Runtime/r3/fs.cpp	(revision 23621)
+++ /trunk/src/VBox/Runtime/r3/fs.cpp	(revision 23622)
@@ -36,4 +36,5 @@
 # define RTTIME_INCL_TIMESPEC
 # include <sys/time.h>
+# include <sys/param.h>
 #endif
 
@@ -196,5 +197,5 @@
 {
     pObjInfo->cbObject    = pStat->st_size;
-    pObjInfo->cbAllocated = pStat->st_blocks * 512;
+    pObjInfo->cbAllocated = pStat->st_blocks * DEV_BSIZE;
 
 #ifdef HAVE_STAT_NSEC