[PATCH] change fallocate to xfs_io falloc

[WuBo]

Thanks to Ben for pointing it that the fallocate maybe uninstall 
without checking it, and change fallocate to xfs_io as Christoph
suggested.

Signed-off-by: Wu Bo <Wu.Bo at cn.fujitsu.com>
---
 274 |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/274 b/274
index b658004..bcf5a11 100755
--- a/274
+++ b/274
@@ -46,6 +46,7 @@ _cleanup()
 _supported_fs generic
 _supported_os IRIX Linux
 _require_scratch
+_require_xfs_io_falloc
 
 echo "------------------------------"
 echo "preallocation test"
@@ -67,7 +68,7 @@ then
 	exit
 fi
 
-fallocate -n -o 4K -l 1M test >/dev/null 2>&1
+$XFS_IO_PROG -F -f -c 'falloc 4096 1m' test >/dev/null
 if [ $? -ne 0 ]
 then
 	echo "fallocate file err"
-- 
1.7.3.1