Merge mskold@bk-internal.mysql.com:/home/bk/mysql-5.1-ndb

into  mysql.com:/windows/Linux_space/MySQL/mysql-5.1-new-ndb

configure.in

@@ -701,6 +701,8 @@ AC_CHECK_HEADERS(fcntl.h float.h floatingpoint.h ieeefp.h limits.h \
  sys/ioctl.h malloc.h sys/malloc.h sys/ipc.h sys/shm.h linux/config.h \
  sys/resource.h sys/param.h)
 
+AC_CHECK_HEADERS([xfs/xfs.h])
+
 #--------------------------------------------------------------------
 # Check for system libraries. Adds the library to $LIBS
 # and defines HAVE_LIBM etc

storage/ndb/src/kernel/blocks/ndbfs/AsyncFile.cpp

@@ -18,6 +18,10 @@
 #include <my_sys.h>
 #include <my_pthread.h>
 
+#ifdef HAVE_XFS_XFS_H
+#include <xfs/xfs.h>
+#endif
+
 #include "AsyncFile.hpp"
 
 #include <ErrorHandlingMacros.hpp>
@@ -459,6 +463,18 @@ void AsyncFile::openReq(Request* request)
     Uint32 index = 0;
     Uint32 block = refToBlock(request->theUserReference);
 
+#ifdef HAVE_XFS_XFS_H
+    if(platform_test_xfs_fd(theFd))
+    {
+      ndbout_c("Using xfsctl(XFS_IOC_RESVSP64) to allocate disk space");
+      xfs_flock64_t fl;
+      fl.l_whence= 0;
+      fl.l_start= 0;
+      fl.l_len= (off64_t)sz;
+      if(xfsctl(NULL, theFd, XFS_IOC_RESVSP64, &fl) < 0)
+        ndbout_c("failed to optimally allocate disk space");
+    }
+#endif
 #ifdef HAVE_POSIX_FALLOCATE
     posix_fallocate(theFd, 0, sz);
 #endif