fs: ext2: Test removing indirect blocks
This commit adds test for the situation when all blocks referenced from the top-level indirect block are removed. Signed-off-by: Franciszek Pindel <fpindel@antmicro.com>
This commit is contained in:
Franciszek Pindel
Alberto Escolar
parent
8cc2d90123
commit
ff0cc742c1
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@ -39,41 +39,17 @@ uint32_t calculate_blocks(uint32_t freeb, uint32_t B)
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/* TODO: revisit this and extend when 3rd level blocks will be possible */
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}
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void writing_test(struct ext2_cfg *config)
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static void write_to_file(const char *file_path, uint32_t bytes_to_write)
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{
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int64_t ret = 0;
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struct fs_file_t file;
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struct fs_statvfs sbuf;
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struct fs_dirent entry;
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struct fs_mount_t *mp = &testfs_mnt;
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static const char *file_path = "/sml/file";
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ret = fs_mkfs(FS_EXT2, (uintptr_t)mp->storage_dev, config, 0);
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zassert_equal(ret, 0, "Failed to mkfs with 2K blocks");
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mp->flags = FS_MOUNT_FLAG_NO_FORMAT;
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ret = fs_mount(mp);
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zassert_equal(ret, 0, "Mount failed (ret=%d)", ret);
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fs_file_t_init(&file);
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ret = fs_open(&file, file_path, FS_O_RDWR | FS_O_CREATE);
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zassert_equal(ret, 0, "File open failed (ret=%d)", ret);
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ret = fs_statvfs(mp->mnt_point, &sbuf);
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zassert_equal(ret, 0, "Expected success (ret=%d)", ret);
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/* Calculate how many numbers will be written (use all available memory) */
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uint32_t freeb = sbuf.f_bfree;
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uint32_t bsize = sbuf.f_bsize;
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uint32_t available_blocks = calculate_blocks(freeb, bsize / sizeof(uint32_t));
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uint32_t bytes_to_write = bsize * available_blocks;
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TC_PRINT("Available blocks: %d\nBlock size: %d\nBytes_to_write: %d\n",
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available_blocks, bsize, bytes_to_write);
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ret = testfs_write_incrementing(&file, 0, available_blocks * bsize);
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ret = testfs_write_incrementing(&file, 0, bytes_to_write);
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zassert_equal(ret, bytes_to_write, "Different number of bytes written %ld (expected %ld)",
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ret, bytes_to_write);
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@ -93,40 +69,121 @@ void writing_test(struct ext2_cfg *config)
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zassert_equal(ret, 0, "File open failed (ret=%d)", ret);
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ret = testfs_verify_incrementing(&file, 0, available_blocks * bsize);
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ret = testfs_verify_incrementing(&file, 0, bytes_to_write);
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zassert_equal(ret, bytes_to_write, "Different number of bytes read %ld (expected %ld)",
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ret, bytes_to_write);
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ret = fs_close(&file);
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zassert_equal(ret, 0, "File close failed (ret=%d)", ret);
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}
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static void truncate_file(const char *file_path, uint32_t new_size)
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{
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int64_t ret = 0;
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struct fs_file_t file;
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struct fs_dirent entry;
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fs_file_t_init(&file);
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TC_PRINT("Truncating to %d\n", new_size);
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ret = fs_open(&file, file_path, FS_O_RDWR);
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zassert_equal(ret, 0, "File open failed (ret=%d)", ret);
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ret = fs_truncate(&file, new_size);
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zassert_equal(ret, 0, "File truncate failed (ret=%d)", ret);
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ret = fs_stat(file_path, &entry);
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zassert_equal(ret, 0, "File stat failed (ret=%d)", ret);
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zassert_equal(entry.size, new_size,
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"Wrong file size %d (expected %d)", entry.size, new_size);
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ret = fs_seek(&file, 0, FS_SEEK_SET);
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zassert_equal(ret, 0, "File seek failed (ret=%d)", ret);
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ret = testfs_verify_incrementing(&file, 0, new_size);
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zassert_equal(ret, new_size, "Different number of bytes read %ld (expected %ld)",
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ret, new_size);
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ret = fs_close(&file);
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zassert_equal(ret, 0, "File close failed (ret=%d)", ret);
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}
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void writing_test(struct ext2_cfg *config)
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{
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int64_t ret = 0;
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struct fs_statvfs sbuf;
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struct fs_mount_t *mp = &testfs_mnt;
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static const char *file_path = "/sml/file";
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ret = fs_mkfs(FS_EXT2, (uintptr_t)mp->storage_dev, config, 0);
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zassert_equal(ret, 0, "Failed to mkfs with 2K blocks");
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mp->flags = FS_MOUNT_FLAG_NO_FORMAT;
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ret = fs_mount(mp);
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zassert_equal(ret, 0, "Mount failed (ret=%d)", ret);
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ret = fs_statvfs(mp->mnt_point, &sbuf);
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zassert_equal(ret, 0, "Expected success (ret=%d)", ret);
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/* Calculate how many numbers will be written (use all available memory) */
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uint32_t freeb = sbuf.f_bfree;
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uint32_t bsize = sbuf.f_bsize;
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uint32_t available_blocks = calculate_blocks(freeb, bsize / sizeof(uint32_t));
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uint32_t bytes_to_write = bsize * available_blocks;
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TC_PRINT("Available blocks: %d\nBlock size: %d\nBytes_to_write: %d\n",
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available_blocks, bsize, bytes_to_write);
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write_to_file(file_path, bytes_to_write);
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uint32_t new_size = bytes_to_write;
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while (new_size > 1) {
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new_size = new_size / 8 * 3;
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truncate_file(file_path, new_size);
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}
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TC_PRINT("Truncating to %d\n", new_size);
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ret = fs_unmount(mp);
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zassert_equal(ret, 0, "Unmount failed (ret=%d)", ret);
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}
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ret = fs_open(&file, file_path, FS_O_RDWR);
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zassert_equal(ret, 0, "File open failed (ret=%d)", ret);
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ZTEST(ext2tests, test_indirect_block_removal)
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{
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int64_t ret = 0;
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struct fs_statvfs sbuf;
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struct fs_mount_t *mp = &testfs_mnt;
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static const char *file_path = "/sml/file";
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ret = fs_truncate(&file, new_size);
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zassert_equal(ret, 0, "File truncate failed (ret=%d)", ret);
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ret = fs_mkfs(FS_EXT2, (uintptr_t)mp->storage_dev, NULL, 0);
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zassert_equal(ret, 0, "Failed to mkfs with 2K blocks");
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ret = fs_stat(file_path, &entry);
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zassert_equal(ret, 0, "File stat failed (ret=%d)", ret);
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zassert_equal(entry.size, new_size,
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"Wrong file size %d (expected %d)", entry.size, new_size);
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mp->flags = FS_MOUNT_FLAG_NO_FORMAT;
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ret = fs_mount(mp);
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zassert_equal(ret, 0, "Mount failed (ret=%d)", ret);
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ret = fs_seek(&file, 0, FS_SEEK_SET);
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zassert_equal(ret, 0, "File seek failed (ret=%d)", ret);
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ret = fs_statvfs(mp->mnt_point, &sbuf);
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zassert_equal(ret, 0, "Expected success (ret=%d)", ret);
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ret = testfs_verify_incrementing(&file, 0, new_size);
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zassert_equal(ret, new_size, "Different number of bytes read %ld (expected %ld)",
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ret, new_size);
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uint32_t bsize = sbuf.f_bsize;
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ret = fs_close(&file);
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zassert_equal(ret, 0, "File close failed (ret=%d)", ret);
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uint32_t bytes_to_write = bsize * 13;
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TC_PRINT("Block size: %d\nBytes_to_write: %d\n", bsize, bytes_to_write);
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write_to_file(file_path, bytes_to_write);
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/* First truncate will remove all blocks under first indirect block.
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* Second truncate will remove rest of blocks;
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* it will check if first indirect block was removed properly.
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*/
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uint32_t sizes[] = {12 * bsize, 0};
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for (int i = 0; i < ARRAY_SIZE(sizes); i++) {
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uint32_t new_size = sizes[i];
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truncate_file(file_path, new_size);
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}
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ret = fs_unmount(mp);
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