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Commit 0e08eb9b authored by David Sterba's avatar David Sterba
Browse files

btrfs: tests: pass fs_info to extent_map tests 



Preparatory work to pass fs_info to btrfs_add_extent_mapping so we can
get a better tracepoint message. Extent maps do not need fs_info for
anything so we only add a dummy one without any other initialization.

Reviewed-by: default avatarNikolay Borisov <nborisov@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 2e63e62d

fs/btrfs/tests/extent-map-tests.c

+36 −16
Original line number Diff line number Diff line
@@ -47,7 +47,8 @@ static void free_extent_map_tree(struct extent_map_tree *em_tree) 
 *                                    ->add_extent_mapping(0, 16K)

 *                                    -> #handle -EEXIST

 */

static void test_case_1(struct extent_map_tree *em_tree)

static void test_case_1(struct btrfs_fs_info *fs_info,

		struct extent_map_tree *em_tree)

{

	struct extent_map *em;

	u64 start = 0;
@@ -112,7 +113,8 @@ static void test_case_1(struct extent_map_tree *em_tree) 
 * Reading the inline ending up with EEXIST, ie. read an inline

 * extent and discard page cache and read it again.

 */

static void test_case_2(struct extent_map_tree *em_tree)

static void test_case_2(struct btrfs_fs_info *fs_info,

		struct extent_map_tree *em_tree)

{

	struct extent_map *em;

	int ret;
@@ -169,7 +171,8 @@ static void test_case_2(struct extent_map_tree *em_tree) 
	free_extent_map_tree(em_tree);

}



static void __test_case_3(struct extent_map_tree *em_tree, u64 start)

static void __test_case_3(struct btrfs_fs_info *fs_info,

		struct extent_map_tree *em_tree, u64 start)

{

	struct extent_map *em;

	u64 len = SZ_4K;
@@ -235,14 +238,16 @@ static void __test_case_3(struct extent_map_tree *em_tree, u64 start) 
 *   -> add_extent_mapping()

 *                            -> add_extent_mapping()

 */

static void test_case_3(struct extent_map_tree *em_tree)

static void test_case_3(struct btrfs_fs_info *fs_info,

		struct extent_map_tree *em_tree)

{

	__test_case_3(em_tree, 0);

	__test_case_3(em_tree, SZ_8K);

	__test_case_3(em_tree, (12 * 1024ULL));

	__test_case_3(fs_info, em_tree, 0);

	__test_case_3(fs_info, em_tree, SZ_8K);

	__test_case_3(fs_info, em_tree, (12 * 1024ULL));

}



static void __test_case_4(struct extent_map_tree *em_tree, u64 start)

static void __test_case_4(struct btrfs_fs_info *fs_info,

		struct extent_map_tree *em_tree, u64 start)

{

	struct extent_map *em;

	u64 len = SZ_4K;
@@ -324,30 +329,45 @@ static void __test_case_4(struct extent_map_tree *em_tree, u64 start) 
 *                                             # handle -EEXIST when adding

 *                                             # [0, 32K)

 */

static void test_case_4(struct extent_map_tree *em_tree)

static void test_case_4(struct btrfs_fs_info *fs_info,

		struct extent_map_tree *em_tree)

{

	__test_case_4(em_tree, 0);

	__test_case_4(em_tree, SZ_4K);

	__test_case_4(fs_info, em_tree, 0);

	__test_case_4(fs_info, em_tree, SZ_4K);

}



int btrfs_test_extent_map(void)

{

	struct btrfs_fs_info *fs_info = NULL;

	struct extent_map_tree *em_tree;



	test_msg("Running extent_map tests\n");



	/*

	 * Note: the fs_info is not set up completely, we only need

	 * fs_info::fsid for the tracepoint.

	 */

	fs_info = btrfs_alloc_dummy_fs_info(PAGE_SIZE, PAGE_SIZE);

	if (!fs_info) {

		test_msg("Couldn't allocate dummy fs info\n");

		return -ENOMEM;

	}



	em_tree = kzalloc(sizeof(*em_tree), GFP_KERNEL);

	if (!em_tree)

		/* Skip the test on error. */

		return 0;

		goto out;



	extent_map_tree_init(em_tree);



	test_case_1(em_tree);

	test_case_2(em_tree);

	test_case_3(em_tree);

	test_case_4(em_tree);

	test_case_1(fs_info, em_tree);

	test_case_2(fs_info, em_tree);

	test_case_3(fs_info, em_tree);

	test_case_4(fs_info, em_tree);



	kfree(em_tree);

out:

	btrfs_free_dummy_fs_info(fs_info);



	return 0;

}