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Parse empty meta_format in superblock as v2 (fix updating from 2.x)

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:42 +03:00
parent 216707f101
commit a5768a8ef6
7 changed files with 38 additions and 16 deletions
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src/blockstore/blockstore_disk.cpp
+24 -6
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@@ -203,10 +203,6 @@ void blockstore_disk_t::parse_config(std::map<std::string, std::string> & config
{
throw std::runtime_error("journal_offset must be a multiple of journal_block_size = "+std::to_string(journal_block_size));
}
if (!meta_format)
{
meta_format = BLOCKSTORE_META_FORMAT_HEAP;
}
if (meta_device == data_device)
{
disable_meta_fsync = disable_data_fsync;
@@ -217,7 +213,7 @@ void blockstore_disk_t::parse_config(std::map<std::string, std::string> & config
}
}
void blockstore_disk_t::calc_lengths()
void blockstore_disk_t::calc_lengths(bool skip_meta_check)
{
// data
data_len = data_device_size - data_offset;
@@ -266,6 +262,7 @@ void blockstore_disk_t::calc_lengths()
clean_entry_bitmap_size = data_block_size / bitmap_granularity / 8;
clean_dyn_size = clean_entry_bitmap_size*2 + (csum_block_size
? data_block_size/csum_block_size*(data_csum_type & 0xFF) : 0);
recalc:
if (meta_format == BLOCKSTORE_META_FORMAT_HEAP)
{
uint32_t entries_per_block = meta_block_size / (sizeof(heap_big_write_t) + clean_dyn_size);
@@ -276,11 +273,32 @@ void blockstore_disk_t::calc_lengths()
clean_entry_size = 24 /*sizeof(clean_disk_entry)*/ + 2*clean_entry_bitmap_size;
min_meta_len = (1 + (block_count - 1 + meta_block_size / clean_entry_size)
/ (meta_block_size / clean_entry_size)) * meta_block_size;
if (!skip_meta_check && meta_area_size < min_meta_len)
{
too_small:
throw std::runtime_error("Metadata area is too small, need at least "+std::to_string(min_meta_len)+
" bytes, have only "+std::to_string(meta_area_size)+" bytes");
}
}
else if (meta_format == BLOCKSTORE_META_FORMAT_V2)
else if (meta_format == BLOCKSTORE_META_FORMAT_V2 || !meta_format)
{
meta_format = BLOCKSTORE_META_FORMAT_V2;
clean_entry_size = 24 /*sizeof(clean_disk_entry)*/ + clean_dyn_size + 4 /*entry_csum*/;
min_meta_len = (1 + (block_count - 1 + meta_block_size / clean_entry_size) / (meta_block_size / clean_entry_size)) * meta_block_size;
if (!skip_meta_check && meta_area_size < min_meta_len)
{
if (!data_csum_type)
{
printf("Warning: Using old metadata format without checksums because the new format"
" doesn't fit into provided area (%ju bytes required, %ju bytes available)\n", min_meta_len, meta_area_size);
meta_format = BLOCKSTORE_META_FORMAT_V1;
goto recalc;
}
else
{
goto too_small;
}
}
}
else
{