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Merge pull request #220 from arutk/metadata_offset_hash

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New hash function formula
This commit is contained in:
Kamil Łepek
2019-07-29 13:03:04 +02:00
committed by GitHub
parent fa14d6a4b5 9b8815935a
commit 05be67a72b
6 changed files with 90 additions and 26 deletions
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10
src/engine/engine_common.c
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@@ -38,19 +38,19 @@ void ocf_engine_lookup_map_entry(struct ocf_cache *cache,
uint64_t core_line)
{
ocf_cache_line_t line;
ocf_cache_line_t hash_key;
ocf_cache_line_t hash;
hash_key = ocf_metadata_hash_func(cache, core_line, core_id);
hash = ocf_metadata_hash_func(cache, core_line, core_id);
/* Initially assume that we have cache miss.
* Hash points to proper bucket.
*/
entry->hash_key = hash_key;
entry->hash = hash;
entry->status = LOOKUP_MISS;
entry->coll_idx = cache->device->collision_table_entries;
entry->core_line = core_line;
line = ocf_metadata_get_hash(cache, hash_key);
line = ocf_metadata_get_hash(cache, hash);
while (line != cache->device->collision_table_entries) {
ocf_core_id_t curr_core_id;
@@ -347,7 +347,7 @@ void ocf_engine_map(struct ocf_request *req)
if (entry->status != LOOKUP_HIT) {
ocf_engine_map_cache_line(req, entry->core_line,
entry->hash_key, &entry->coll_idx);
entry->hash, &entry->coll_idx);
if (req->info.mapping_error) {
/*