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Additional cleaning policy info outside of the SB

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Starting cache in a standby mode requires access to a valid cleaning policy
type. If the policy is stored only in the superblock, it may be overridden by
one of the metadata passive updates.

To prevent losing the information it should be stored in cache's runtime
metadata.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk
2021-10-14 18:41:30 +02:00
parent 0e529479d6
commit 52824adaaf
8 changed files with 39 additions and 27 deletions
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1
src/cleaning/cleaning.h
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@@ -41,6 +41,7 @@ struct cleaning_policy_meta {
struct ocf_cleaner {
struct ocf_refcnt refcnt __attribute__((aligned(64)));
ocf_cleaning_t policy;
void *cleaning_policy_context;
ocf_queue_t io_queue;
ocf_cleaner_end_t end;

16
src/cleaning/cleaning_ops.h
View File

@@ -91,7 +91,7 @@ static inline void ocf_cleaning_deinitialize(ocf_cache_t cache)
{
ocf_cleaning_t policy;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
@@ -110,7 +110,7 @@ static inline int ocf_cleaning_add_core(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return -OCF_ERR_NO_LOCK;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
@@ -133,7 +133,7 @@ static inline void ocf_cleaning_remove_core(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
@@ -154,7 +154,7 @@ static inline void ocf_cleaning_init_cache_block(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
if (unlikely(!cleaning_policy_ops[policy].init_cache_block))
@@ -174,7 +174,7 @@ static inline void ocf_cleaning_purge_cache_block(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
if (unlikely(!cleaning_policy_ops[policy].purge_cache_block))
@@ -194,7 +194,7 @@ static inline void ocf_cleaning_purge_range(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
if (unlikely(!cleaning_policy_ops[policy].purge_range))
@@ -215,7 +215,7 @@ static inline void ocf_cleaning_set_hot_cache_line(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
if (unlikely(!cleaning_policy_ops[policy].set_hot_cache_line))
@@ -259,7 +259,7 @@ static inline void ocf_cleaning_perform_cleaning(ocf_cache_t cache,
if (unlikely(!ocf_refcnt_inc(&cache->cleaner.refcnt)))
return;
policy = cache->conf_meta->cleaning_policy_type;
policy = cache->cleaner.policy;
ENV_BUG_ON(policy >= ocf_cleaning_max);
if (unlikely(!cleaning_policy_ops[policy].perform_cleaning))