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Write recheck_modified_blocks to disk

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This commit is contained in:
Vitaliy Filippov
2025-12-02 01:52:12 +03:00
parent daf2cc3fb1
commit 378fff6f67
5 changed files with 58 additions and 1 deletions
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src/blockstore/blockstore_init.cpp
+42
View File
@@ -51,6 +51,8 @@ int blockstore_init_meta::loop()
else if (wait_state == 5) goto resume_5;
else if (wait_state == 6) goto resume_6;
else if (wait_state == 7) goto resume_7;
else if (wait_state == 8) goto resume_8;
else if (wait_state == 9) goto resume_9;
metadata_buffer = memalign(MEM_ALIGNMENT, 2*bs->metadata_buf_size);
if (!metadata_buffer)
throw std::runtime_error("Failed to allocate metadata read buffer");
@@ -283,6 +285,46 @@ resume_6:
}, bs->meta_write_recheck_parallelism);
return 1;
resume_7:
recheck_mod = bs->heap->get_recheck_modified_blocks();
if (bs->readonly)
{
recheck_mod.clear();
}
for (i = 0; i < recheck_mod.size(); i++)
{
resume_8:
if (wait_count >= bs->meta_write_recheck_parallelism || !(sqe = bs->get_sqe()))
{
bs->ringloop->submit();
wait_state = 8;
return 1;
}
data = ((ring_data_t*)sqe->user_data);
uint8_t *buf = (uint8_t*)malloc_or_die(bs->dsk.meta_block_size);
bs->heap->get_meta_block(recheck_mod[i], buf);
data->iov = { buf, bs->dsk.meta_block_size };
data->callback = [this, buf, block_num = i](ring_data_t *data)
{
wait_count--;
free(buf);
if (data->res != bs->dsk.meta_block_size)
{
throw std::runtime_error(
"write metadata failed at offset " + std::to_string(bs->dsk.meta_offset + (block_num+1)*bs->dsk.meta_block_size) +
": " + strerror(-data->res)
);
}
};
io_uring_prep_writev(sqe, bs->dsk.meta_fd, &data->iov, 1, bs->dsk.meta_offset + (i+1)*bs->dsk.meta_block_size);
wait_count++;
}
resume_9:
if (wait_count > 0)
{
bs->ringloop->submit();
wait_state = 9;
return 1;
}
if (bs->heap->finish_load() != 0)
{
exit(1);