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Recovery on passive start

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Adjust recovery procedure to allow rebuilding metadata from partialy valid
metadata

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk 2021-11-16 14:36:13 +01:00
parent 11dacd6a84
commit 6d4e6af5b6
1 changed files with 29 additions and 15 deletions
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44
src/mngt/ocf_mngt_cache.c
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@ -500,34 +500,35 @@ static void _recovery_reset_cline_metadata(struct ocf_cache *cache,
ocf_cleaning_init_cache_block(cache, cline);
}
static void _ocf_mngt_recovery_rebuild_metadata(ocf_cache_t cache)
static void _ocf_mngt_rebuild_metadata(ocf_cache_t cache, bool initialized)
{
ocf_cache_line_t cline;
ocf_core_id_t core_id;
uint64_t core_line;
unsigned char step = 0;
bool dirty_only = !ocf_volume_is_atomic(ocf_cache_get_volume(cache));
const uint64_t collision_table_entries =
ocf_metadata_collision_table_entries(cache);
ocf_metadata_start_exclusive_access(&cache->metadata.lock);
for (cline = 0; cline < collision_table_entries; cline++) {
ocf_metadata_get_core_info(cache, cline, &core_id, &core_line);
if (core_id != OCF_CORE_MAX &&
(!dirty_only || metadata_test_dirty(cache,
cline))) {
/* Rebuild metadata for mapped cache line */
ocf_cline_rebuild_metadata(cache, core_id,
core_line, cline);
if (dirty_only)
metadata_clear_valid_if_clean(cache, cline);
} else {
/* Reset metadata for not mapped or clean cache line */
_recovery_reset_cline_metadata(cache, cline);
}
bool any_valid = true;
OCF_COND_RESCHED(step, 128);
ocf_metadata_get_core_info(cache, cline, &core_id, &core_line);
if (!initialized)
metadata_clear_dirty_if_invalid(cache, cline);
any_valid = metadata_clear_valid_if_clean(cache, cline);
if (!any_valid || core_id >= OCF_CORE_MAX) {
/* Reset metadata for not mapped or clean cache line */
_recovery_reset_cline_metadata(cache, cline);
continue;
}
/* Rebuild metadata for mapped cache line */
ocf_cline_rebuild_metadata(cache, core_id, core_line, cline);
}
ocf_metadata_end_exclusive_access(&cache->metadata.lock);
@ -2035,6 +2036,18 @@ static void _ocf_mngt_bind_init_attached_structures(ocf_pipeline_t pipeline,
ocf_pipeline_next(context->pipeline);
}
static void _ocf_mngt_bind_recovery_unsafe(ocf_pipeline_t pipeline,
void *priv, ocf_pipeline_arg_t arg)
{
struct ocf_cache_attach_context *context = priv;
ocf_cache_t cache = context->cache;
_ocf_mngt_bind_rebuild_metadata(cache);
__populate_free_unsafe(cache);
ocf_pipeline_next(pipeline);
}
static void _ocf_mngt_bind_post_init(ocf_pipeline_t pipeline,
void *priv, ocf_pipeline_arg_t arg)
{
@ -2060,6 +2073,7 @@ struct ocf_pipeline_properties _ocf_mngt_cache_standby_pipeline_properties = {
OCF_PL_STEP(_ocf_mngt_attach_prepare_metadata),
OCF_PL_STEP(_ocf_mngt_load_metadata_unsafe),
OCF_PL_STEP(_ocf_mngt_bind_init_attached_structures),
OCF_PL_STEP(_ocf_mngt_bind_recovery_unsafe),
OCF_PL_STEP(_ocf_mngt_bind_post_init),
OCF_PL_STEP_TERMINATOR(),
},