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Fix upgrading from pre-0.7.1 systemd units O_o

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This commit is contained in:
Vitaliy Filippov
2025-03-14 01:37:16 +03:00
parent 263a3b5ad6
commit 3634f005f1
4 changed files with 67 additions and 24 deletions
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src/blockstore/blockstore_disk.cpp
+12 -8
View File
@@ -172,10 +172,6 @@ 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));
}
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);
clean_entry_size = sizeof(clean_disk_entry) + clean_dyn_size + 4 /*entry_csum*/;
}
void blockstore_disk_t::calc_lengths(bool skip_meta_check)
@@ -224,9 +220,13 @@ void blockstore_disk_t::calc_lengths(bool skip_meta_check)
}
// required metadata size
block_count = data_len / data_block_size;
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);
clean_entry_size = sizeof(clean_disk_entry) + clean_dyn_size + 4 /*entry_csum*/;
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)
bool new_doesnt_fit = (!meta_format && !skip_meta_check && meta_area_size < meta_len && !data_csum_type);
if (meta_format == BLOCKSTORE_META_FORMAT_V1 || new_doesnt_fit)
{
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)
@@ -234,7 +234,11 @@ void blockstore_disk_t::calc_lengths(bool skip_meta_check)
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");
if (new_doesnt_fit)
{
printf("Warning: Using old metadata format without checksums because the new format"
" doesn't fit into provided area (%lu bytes required, %lu bytes available)\n", meta_len, meta_area_size);
}
clean_entry_size = clean_entry_v0_size;
meta_len = meta_v0_len;
meta_format = BLOCKSTORE_META_FORMAT_V1;
@@ -246,7 +250,7 @@ void blockstore_disk_t::calc_lengths(bool skip_meta_check)
meta_format = BLOCKSTORE_META_FORMAT_V2;
if (!skip_meta_check && 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, have only "+std::to_string(meta_area_size)+" bytes");
}
// requested journal size
if (!skip_meta_check && cfg_journal_size > journal_len)
src/blockstore/blockstore_disk.h
+2 -2
View File
@@ -40,8 +40,8 @@ struct blockstore_disk_t
uint64_t data_offset, data_device_sect, data_device_size, data_len;
uint64_t journal_offset, journal_device_sect, journal_device_size, journal_len;
uint32_t block_order;
uint64_t block_count;
uint32_t block_order = 0;
uint64_t block_count = 0;
uint32_t clean_entry_bitmap_size = 0, clean_entry_size = 0, clean_dyn_size = 0;
void parse_config(std::map<std::string, std::string> & config);
src/blockstore/blockstore_init.cpp
+15 -7
View File
@@ -138,7 +138,11 @@ resume_1:
exit(1);
}
hdr->header_csum = csum;
bs->dsk.meta_format = BLOCKSTORE_META_FORMAT_V2;
if (bs->dsk.meta_format != BLOCKSTORE_META_FORMAT_V2)
{
bs->dsk.meta_format = BLOCKSTORE_META_FORMAT_V2;
bs->dsk.calc_lengths();
}
}
else if (hdr->version == BLOCKSTORE_META_FORMAT_V1)
{
@@ -146,11 +150,15 @@ resume_1:
hdr->csum_block_size = 0;
hdr->header_csum = 0;
// Enable compatibility mode - entries without checksums
bs->dsk.clean_entry_size = sizeof(clean_disk_entry) + bs->dsk.clean_entry_bitmap_size*2;
bs->dsk.meta_len = (1 + (bs->dsk.block_count - 1 + bs->dsk.meta_block_size / bs->dsk.clean_entry_size)
/ (bs->dsk.meta_block_size / bs->dsk.clean_entry_size)) * bs->dsk.meta_block_size;
bs->dsk.meta_format = BLOCKSTORE_META_FORMAT_V1;
printf("Warning: Starting with metadata in the old format without checksums, as stored on disk\n");
if (bs->dsk.meta_format != BLOCKSTORE_META_FORMAT_V1 ||
bs->dsk.data_csum_type != 0 || bs->dsk.csum_block_size != 0)
{
bs->dsk.data_csum_type = 0;
bs->dsk.csum_block_size = 0;
bs->dsk.meta_format = BLOCKSTORE_META_FORMAT_V1;
bs->dsk.calc_lengths();
printf("Warning: Starting with metadata in the old format without checksums, as stored on disk\n");
}
}
else if (hdr->version > BLOCKSTORE_META_FORMAT_V2)
{
@@ -338,7 +346,7 @@ bool blockstore_init_meta::handle_meta_block(uint8_t *buf, uint64_t entries_per_
uint32_t *entry_csum = (uint32_t*)((uint8_t*)entry + bs->dsk.clean_entry_size - 4);
if (*entry_csum != crc32c(0, entry, bs->dsk.clean_entry_size - 4))
{
printf("Metadata entry %ju is corrupt (checksum mismatch), skipping\n", done_cnt+i);
printf("Metadata entry %ju is corrupt (checksum mismatch: %08x vs %08x), skipping\n", done_cnt+i, *entry_csum, crc32c(0, entry, bs->dsk.clean_entry_size - 4));
// zero out the invalid entry, otherwise we'll hit "tried to overwrite non-zero metadata entry" later
if (bs->inmemory_meta)
{