btrfs: tests: zoned: add tests cases for zoned code

Add a test function for the zoned code, for now it tests
btrfs_load_block_group_by_raid_type() with various test cases. The
load_zone_info_tests[] array defines the test cases.

Signed-off-by: Naohiro Aota <[email protected]>
Signed-off-by: David Sterba <[email protected]>

Author: naota

fs/btrfs/Makefile

@@ -45,3 +45,7 @@ btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o \
 	tests/free-space-tree-tests.o tests/extent-map-tests.o \
 	tests/raid-stripe-tree-tests.o tests/delayed-refs-tests.o \
 	tests/chunk-allocation-tests.o
+
+ifeq ($(CONFIG_BLK_DEV_ZONED),y)
+btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/zoned-tests.o
+endif

fs/btrfs/tests/btrfs-tests.c

@@ -303,6 +303,9 @@ int btrfs_run_sanity_tests(void)
 		}
 	}
 	ret = btrfs_test_extent_map();
+	if (ret)
+		goto out;
+	ret = btrfs_test_zoned();
 
 out:
 	btrfs_destroy_test_fs();

fs/btrfs/tests/btrfs-tests.h

@@ -63,6 +63,16 @@ void btrfs_init_dummy_trans(struct btrfs_trans_handle *trans,
 			    struct btrfs_fs_info *fs_info);
 void btrfs_init_dummy_transaction(struct btrfs_transaction *trans, struct btrfs_fs_info *fs_info);
 struct btrfs_device *btrfs_alloc_dummy_device(struct btrfs_fs_info *fs_info);
+
+#ifdef CONFIG_BLK_DEV_ZONED
+int btrfs_test_zoned(void);
+#else
+static inline int btrfs_test_zoned(void)
+{
+	return 0;
+}
+#endif
+
 #else
 static inline int btrfs_run_sanity_tests(void)
 {