In xfstest 285/286 we don't check whether the target file system

supports seek data/hole operation or not.  Here _require_seek_data_hole
is defined to do this work.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Reviewed-by: Rich Johnston <rjohnston@sgi.com>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>

common/rc

@@ -1283,6 +1283,18 @@ _require_fail_make_request()
  not found. Seems that CONFIG_FAIL_MAKE_REQUEST kernel config option not enabled"
 }
 
+#
+# Check if the file system supports seek_data/hole
+#
+_require_seek_data_hole()
+{
+    testfile=$TEST_DIR/$$.seek
+    testseek=`$here/src/seek_sanity_test -t $testfile 2>&1`
+    rm -f $testfile &>/dev/null
+    echo $testseek | grep -q "Kernel does not support" && \
+        _notrun "File system does not support llseek(2) SEEK_DATA/HOLE"
+}
+
 # check that a FS on a device is mounted
 # if so, return mount point
 #

src/seek_sanity_test.c

@@ -660,6 +660,8 @@ int main(int argc, char **argv)
 {
 	int ret = -1;
 	int i = 0;
+	int opt;
+	int check_support = 0;
 	int numtests = sizeof(seek_tests) / sizeof(struct testrec);
 
 	if (argc != 2) {
@@ -667,10 +669,22 @@ int main(int argc, char **argv)
 		return ret;
 	}
 
-	base_file_path = (char *)strdup(argv[1]);
+	while ((opt = getopt(argc, argv, "t")) != -1) {
+		switch (opt) {
+		case 't':
+			check_support++;
+			break;
+		default:
+			fprintf(stderr, "Usage: %s [-t] base_file_path\n",
+				argv[0]);
+			return ret;
+		}
+	}
+
+	base_file_path = (char *)strdup(argv[optind]);
 
 	ret = test_basic_support();
-	if (ret)
+	if (ret || check_support)
 		goto out;
 
 	for (i = 0; i < numtests; ++i) {

tests/generic/285

@@ -40,6 +40,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fs generic
 _supported_os Linux
 
+_require_seek_data_hole
+
 BASE_TEST_FILE=$TEST_DIR/seek_sanity_testfile
 
 [ -x $here/src/seek_sanity_test ] || _notrun "seek_sanitfy_tester not built"

tests/generic/286

@@ -38,6 +38,8 @@ trap "_cleanup; exit \$status" 0 1 2 3 15
 _supported_fs generic
 _supported_os Linux
 
+_require_seek_data_hole
+
 src=$TEST_DIR/seek_copy_testfile
 dest=$TEST_DIR/seek_copy_testfile.dest