[PATCH fstests v2 3/3] generic/578: only run on filesystems that support FIEMAP

[Jeff Layton <jlayton@kernel.org>]

Some filesystems (e.g. NFS) don't support FIEMAP. Limit generic/578 to
filesystems that do.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 common/rc         | 13 +++++++++++++
 tests/generic/578 |  1 +
 2 files changed, 14 insertions(+)

diff --git a/common/rc b/common/rc
index 33e74d20c28b..98d27890f6f7 100644
--- a/common/rc
+++ b/common/rc
@@ -3885,6 +3885,19 @@ _require_metadata_journaling()
 	fi
 }
 
+_require_fiemap()
+{
+	local testfile=$TEST_DIR/fiemaptest.$$
+
+	touch $testfile
+	$XFS_IO_PROG -r -c "fiemap" $testfile 1>$testfile.out 2>&1
+	if grep -q 'Operation not supported' $testfile.out; then
+	  _notrun "FIEMAP is not supported by this filesystem"
+	fi
+
+	rm -f $testfile $testfile.out
+}
+
 _count_extents()
 {
 	$XFS_IO_PROG -r -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l
diff --git a/tests/generic/578 b/tests/generic/578
index b024f6ff90b4..903055b2ca58 100755
--- a/tests/generic/578
+++ b/tests/generic/578
@@ -26,6 +26,7 @@ _require_test_program "mmap-write-concurrent"
 _require_command "$FILEFRAG_PROG" filefrag
 _require_test_reflink
 _require_cp_reflink
+_require_fiemap
 
 compare() {
 	for i in $(seq 1 8); do

-- 
2.41.0