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[block-cache] Add check_raw() to bcache::validator

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Ming-Hung Tsai
2016-02-27 15:21:13 +08:00
parent 45e9916428
commit 778c153c1e
9 changed files with 74 additions and 1 deletions
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10
persistent-data/validators.cc
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@@ -31,6 +31,16 @@ namespace {
}
}
virtual bool check_raw(void const *raw) const {
disk_node const *data = reinterpret_cast<disk_node const *>(raw);
node_header const *n = &data->header;
crc32c sum(BTREE_CSUM_XOR);
sum.append(&n->flags, MD_BLOCK_SIZE - sizeof(uint32_t));
if (sum.get_sum() != to_cpu<uint32_t>(n->csum))
return false;
return true;
}
virtual void prepare(void *raw, block_address location) const {
disk_node *data = reinterpret_cast<disk_node *>(raw);
node_header *n = &data->header;