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Combine cache ref counter and valid flag into ocf_refcnt

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Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
Adam Rutkowski
2019-04-10 15:59:21 -04:00
parent 4251cc63e7
commit aafc067fa5
3 changed files with 15 additions and 21 deletions
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7
src/mngt/ocf_mngt_cache.c
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@@ -561,7 +561,7 @@ static int _ocf_mngt_init_new_cache(struct ocf_cachemng_init_params *params)
INIT_LIST_HEAD(&cache->list);
list_add_tail(&cache->list, &params->ctx->caches);
env_atomic_set(&cache->ref_count, 1);
ocf_refcnt_inc(&cache->refcnt.cache);
cache->owner = params->ctx;
/* start with freezed metadata ref counter to indicate detached device*/
@@ -1221,7 +1221,7 @@ static int _ocf_mngt_cache_start(ocf_ctx_t ctx, ocf_cache_t *cache,
cache_unlock convention. User is expected to call
ocf_mngt_cache_unlock in future which would up the
semaphore as well as decrement ref_count. */
env_atomic_inc(&(*cache)->ref_count);
ocf_refcnt_inc(&(*cache)->refcnt.cache);
} else {
/* User did not request to lock cache instance after creation -
up the semaphore here since we have acquired the lock to
@@ -1244,7 +1244,6 @@ static void _ocf_mng_cache_set_valid(ocf_cache_t cache)
* Clear initialization state and set the valid bit so we know
* its in use.
*/
cache->valid_ocf_cache_device_t = 1;
env_bit_clear(ocf_cache_state_initializing, &cache->cache_state);
env_bit_set(ocf_cache_state_running, &cache->cache_state);
}
@@ -2000,7 +1999,7 @@ static void ocf_mngt_cache_stop_finish(ocf_pipeline_t pipeline,
if (!error) {
env_mutex_lock(&ctx->lock);
/* Mark device uninitialized */
cache->valid_ocf_cache_device_t = 0;
ocf_refcnt_freeze(&cache->refcnt.cache);
/* Remove cache from the list */
list_del(&cache->list);
env_mutex_unlock(&ctx->lock);