[PATCH v2] xfstests: generic/255: Execute only if blocksize is 4k

[PATCH v2] xfstests: generic/255: Execute only if blocksize is 4k

[chandan]

This patch adds the function _require_4k_blocksize() to perform the
block size check on the filesystem hosted by $TEST_DEV and $SCRATCH_DEV.

Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
---
 common/rc         | 10 ++++++++++
 tests/generic/255 |  1 +
 2 files changed, 11 insertions(+)

diff --git a/common/rc b/common/rc
index 77e96c4..fa2bbe0 100644
--- a/common/rc
+++ b/common/rc
@@ -2118,6 +2118,16 @@ _require_dumpe2fs()
 	fi
 }
 
+_require_4k_blocksize()
+{
+	test_dev_bs=`stat -f $TEST_DIR | grep "Block size" | cut -d " " -f3`
+	scratch_dev_bs=`stat -f $SCRATCH_MNT | grep "Block size" | cut -d " " -f3`
+
+	if (( $test_dev_bs != 4096 || $scratch_dev_bs != 4096 )); then
+		_notrun "This test requires a filesystem with 4k block size."
+	fi
+}
+
 _create_loop_device()
 {
 	file=$1
diff --git a/tests/generic/255 b/tests/generic/255
index dd329b4..ce617dc 100755
--- a/tests/generic/255
+++ b/tests/generic/255
@@ -49,6 +49,7 @@ _supported_os Linux
 _require_xfs_io_falloc_punch
 _require_xfs_io_falloc
 _require_xfs_io_fiemap
+_require_4k_blocksize
 
 testfile=$TEST_DIR/255.$$
 
-- 
1.8.3.1


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