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Allow to forcibly set meta_format

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This commit is contained in:
Vitaliy Filippov
2023-07-13 01:49:45 +03:00
parent 3b9873b9a9
commit 0641b06fb1
2 changed files with 29 additions and 31 deletions
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src/blockstore_disk.cpp
+21 -18
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@@ -44,6 +44,7 @@ void blockstore_disk_t::parse_config(std::map<std::string, std::string> & config
journal_block_size = parse_size(config["journal_block_size"]);
meta_block_size = parse_size(config["meta_block_size"]);
bitmap_granularity = parse_size(config["bitmap_granularity"]);
meta_format = stoull_full(config["meta_format"]);
if (config["data_csum_type"] == "crc32c")
{
data_csum_type = BLOCKSTORE_CSUM_CRC32C;
@@ -191,26 +192,28 @@ void blockstore_disk_t::calc_lengths(bool skip_meta_check)
// required metadata size
block_count = data_len / data_block_size;
meta_len = (1 + (block_count - 1 + meta_block_size / clean_entry_size) / (meta_block_size / clean_entry_size)) * meta_block_size;
if (meta_format == BLOCKSTORE_META_FORMAT_V1 ||
!meta_format && !skip_meta_check && meta_area_size < meta_len && !data_csum_type)
{
uint64_t clean_entry_v0_size = sizeof(clean_disk_entry) + 2*clean_entry_bitmap_size;
uint64_t meta_v0_len = (1 + (block_count - 1 + meta_block_size / clean_entry_v0_size)
/ (meta_block_size / clean_entry_v0_size)) * meta_block_size;
if (meta_format == BLOCKSTORE_META_FORMAT_V1 || meta_area_size >= meta_v0_len)
{
// Old metadata fits.
printf("Warning: Using old metadata format without checksums because the new format doesn't fit into provided area\n");
clean_entry_size = clean_entry_v0_size;
meta_len = meta_v0_len;
meta_format = BLOCKSTORE_META_FORMAT_V1;
}
else
meta_format = BLOCKSTORE_META_FORMAT_V2;
}
else
meta_format = BLOCKSTORE_META_FORMAT_V2;
if (!skip_meta_check && meta_area_size < meta_len)
{
if (!data_csum_type && !meta_format)
{
uint64_t clean_entry_v0_size = sizeof(clean_disk_entry) + 2*clean_entry_bitmap_size;
uint64_t meta_v0_len = (1 + (block_count - 1 + meta_block_size / clean_entry_v0_size)
/ (meta_block_size / clean_entry_v0_size)) * meta_block_size;
if (meta_area_size >= meta_v0_len)
{
// Old metadata fits.
printf("Warning: Forcing metadata format without checksums because the new format doesn't fit into provided area\n");
clean_entry_size = clean_entry_v0_size;
meta_len = meta_v0_len;
meta_format = BLOCKSTORE_META_FORMAT_V1;
}
}
if (meta_area_size < meta_len)
{
throw std::runtime_error("Metadata area is too small, need at least "+std::to_string(meta_len)+" bytes");
}
throw std::runtime_error("Metadata area is too small, need at least "+std::to_string(meta_len)+" bytes");
}
// requested journal size
if (!skip_meta_check && cfg_journal_size > journal_len)