Commit 28b95ee8 authored by Kemeng Shi's avatar Kemeng Shi Committed by Theodore Ts'o
Browse files

ext4: run mballoc test with different layouts setting 



Use KUNIT_CASE_PARAM to run mballoc test with different layouts setting.

Signed-off-by: default avatarKemeng Shi <shikemeng@huaweicloud.com>
Reviewed-by: default avatar"Ritesh Harjani (IBM)" <ritesh.list@gmail.com>
Link: https://lore.kernel.org/r/20230928160407.142069-13-shikemeng@huaweicloud.com


Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent 7c9fa399

fs/ext4/mballoc-test.c

+38 −14
Original line number Diff line number Diff line
@@ -199,21 +199,11 @@ ext4_mb_mark_context_stub(handle_t *handle, struct super_block *sb, bool state, 
	return 0;

}



#define TEST_BLOCKSIZE_BITS 10

#define TEST_CLUSTER_BITS 3

#define TEST_BLOCKS_PER_GROUP 8192

#define TEST_GROUP_COUNT 4

#define TEST_DESC_SIZE 64

#define TEST_GOAL_GROUP 1

static int mbt_kunit_init(struct kunit *test)

{

	struct mbt_ext4_block_layout layout = {

		.blocksize_bits = TEST_BLOCKSIZE_BITS,

		.cluster_bits = TEST_CLUSTER_BITS,

		.blocks_per_group = TEST_BLOCKS_PER_GROUP,

		.group_count = TEST_GROUP_COUNT,

		.desc_size = TEST_DESC_SIZE,

	};

	struct mbt_ext4_block_layout *layout =

		(struct mbt_ext4_block_layout *)(test->param_value);

	struct super_block *sb;

	int ret;
@@ -221,7 +211,7 @@ static int mbt_kunit_init(struct kunit *test) 
	if (sb == NULL)

		return -ENOMEM;



	mbt_init_sb_layout(sb, &layout);

	mbt_init_sb_layout(sb, layout);



	ret = mbt_ctx_init(sb);

	if (ret != 0) {
@@ -307,9 +297,43 @@ static void test_new_blocks_simple(struct kunit *test) 
		"unexpectedly get block when no block is available");

}



static const struct mbt_ext4_block_layout mbt_test_layouts[] = {

	{

		.blocksize_bits = 10,

		.cluster_bits = 3,

		.blocks_per_group = 8192,

		.group_count = 4,

		.desc_size = 64,

	},

	{

		.blocksize_bits = 12,

		.cluster_bits = 3,

		.blocks_per_group = 8192,

		.group_count = 4,

		.desc_size = 64,

	},

	{

		.blocksize_bits = 16,

		.cluster_bits = 3,

		.blocks_per_group = 8192,

		.group_count = 4,

		.desc_size = 64,

	},

};



static void mbt_show_layout(const struct mbt_ext4_block_layout *layout,

			    char *desc)

{

	snprintf(desc, KUNIT_PARAM_DESC_SIZE, "block_bits=%d cluster_bits=%d "

		 "blocks_per_group=%d group_count=%d desc_size=%d\n",

		 layout->blocksize_bits, layout->cluster_bits,

		 layout->blocks_per_group, layout->group_count,

		 layout->desc_size);

}

KUNIT_ARRAY_PARAM(mbt_layouts, mbt_test_layouts, mbt_show_layout);



static struct kunit_case mbt_test_cases[] = {

	KUNIT_CASE(test_new_blocks_simple),

	KUNIT_CASE_PARAM(test_new_blocks_simple, mbt_layouts_gen_params),

	{}

};