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Switching mechanism for promotion policies

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Signed-off-by: Jan Musial <jan.musial@intel.com>
This commit is contained in:
Jan Musial
2019-08-26 13:52:11 +02:00
parent e3a20c0da0
commit a1d3cf0c4d
12 changed files with 252 additions and 26 deletions
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29
src/promotion/promotion.c
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@@ -55,6 +55,35 @@ void ocf_promotion_deinit(ocf_promotion_policy_t policy)
env_vfree(policy);
}
ocf_error_t ocf_promotion_set_policy(ocf_promotion_policy_t policy,
ocf_promotion_t type)
{
ocf_error_t result = 0;
ocf_cache_t cache = policy->owner;
ocf_promotion_t prev_policy;
prev_policy = cache->conf_meta->promotion_policy_type;
if (ocf_promotion_policies[prev_policy].deinit)
ocf_promotion_policies[prev_policy].deinit(policy);
cache->conf_meta->promotion_policy_type = type;
if (ocf_promotion_policies[type].init)
result = ocf_promotion_policies[type].init(cache, policy);
if (result) {
ocf_cache_log(cache, log_err,
"Error switching to new promotion policy\n");
ocf_cache_log(cache, log_err,
"Falling back to 'always' promotion policy\n");
cache->conf_meta->promotion_policy_type = ocf_promotion_always;
policy->type = ocf_promotion_always;
}
return result;
}
ocf_error_t ocf_promotion_set_param(ocf_promotion_policy_t policy,
uint8_t param_id, uint64_t param_value)
{