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Lru populate unsafe

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The unsafe mode is useful if the metadata of added cores is incomplete.

Such scenario is possible when starting cache to standby mode from partially
vaild metadata.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk
2021-11-16 10:31:27 +01:00
parent 4deaa1e133
commit 8f58add152
3 changed files with 21 additions and 9 deletions
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15
src/mngt/ocf_mngt_cache.c
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@@ -210,12 +210,19 @@ static void __init_parts_attached(ocf_cache_t cache)
ocf_lru_init(cache, &cache->free);
}
static void __populate_free(ocf_cache_t cache)
static void __populate_free_unsafe(ocf_cache_t cache)
{
uint64_t free_clines = ocf_metadata_collision_table_entries(cache);
ocf_lru_populate(cache, free_clines, false);
}
static void __populate_free_safe(ocf_cache_t cache)
{
uint64_t free_clines = ocf_metadata_collision_table_entries(cache) -
ocf_get_cache_occupancy(cache);
ocf_lru_populate(cache, free_clines);
ocf_lru_populate(cache, free_clines, true);
}
static ocf_error_t __init_cleaning_policy(ocf_cache_t cache)
@@ -307,7 +314,7 @@ static ocf_error_t init_attached_data_structures(ocf_cache_t cache)
ocf_metadata_init_hash_table(cache);
ocf_metadata_init_collision(cache);
__init_parts_attached(cache);
__populate_free(cache);
__populate_free_safe(cache);
result = __init_cleaning_policy(cache);
if (result) {
@@ -536,7 +543,7 @@ static void _ocf_mngt_load_post_metadata_load(ocf_pipeline_t pipeline,
if (context->metadata.shutdown_status != ocf_metadata_clean_shutdown) {
_ocf_mngt_recovery_rebuild_metadata(cache);
__populate_free(cache);
__populate_free_safe(cache);
}
cleaning_policy = cache->conf_meta->cleaning_policy_type;