btrfs: tests: add cleanup functions for test specific functions

Add auto-cleanup helper functions for btrfs_free_dummy_fs_info and
btrfs_free_dummy_block_group.

Signed-off-by: Naohiro Aota <naohiro.aota@wdc.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

Author: naota

fs/btrfs/tests/btrfs-tests.h

@@ -7,8 +7,10 @@
 #define BTRFS_TESTS_H
 
 #include <linux/types.h>
+#include <linux/cleanup.h>
 
 #ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+
 int btrfs_run_sanity_tests(void);
 
 #define test_msg(fmt, ...) pr_info("BTRFS: selftest: " fmt "\n", ##__VA_ARGS__)
@@ -49,10 +51,14 @@ int btrfs_test_chunk_allocation(u32 sectorsize, u32 nodesize);
 struct inode *btrfs_new_test_inode(void);
 struct btrfs_fs_info *btrfs_alloc_dummy_fs_info(u32 nodesize, u32 sectorsize);
 void btrfs_free_dummy_fs_info(struct btrfs_fs_info *fs_info);
+DEFINE_FREE(btrfs_free_dummy_fs_info, struct btrfs_fs_info *,
+	    btrfs_free_dummy_fs_info(_T))
 void btrfs_free_dummy_root(struct btrfs_root *root);
 struct btrfs_block_group *
 btrfs_alloc_dummy_block_group(struct btrfs_fs_info *fs_info, unsigned long length);
 void btrfs_free_dummy_block_group(struct btrfs_block_group *cache);
+DEFINE_FREE(btrfs_free_dummy_block_group, struct btrfs_block_group *,
+	    btrfs_free_dummy_block_group(_T));
 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);