Add getter function for cache->device->concurrency.cache_line

The purpose of this change is to facilitate unit testing.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>

src/cleaning/acp.c

@@ -398,7 +398,7 @@ static ocf_cache_line_t _acp_trylock_dirty(struct ocf_cache *cache,
 	if (info.status == LOOKUP_HIT &&
 			metadata_test_dirty(cache, info.coll_idx)) {
 		locked = ocf_cache_line_try_lock_rd(
-				cache->device->concurrency.cache_line,
+				ocf_cache_line_concurrency(cache),
 				info.coll_idx);
 	}
 
@@ -474,7 +474,7 @@ static void _acp_flush_end(void *priv, int error)
 
 	for (i = 0; i < flush->size; i++) {
 		ocf_cache_line_unlock_rd(
-				cache->device->concurrency.cache_line,
+				ocf_cache_line_concurrency(cache),
 				flush->data[i].cache_line);
 		ACP_DEBUG_END(acp, flush->data[i].cache_line);
 	}

src/cleaning/alru.c

@@ -682,8 +682,7 @@ static bool block_is_busy(struct ocf_cache *cache,
 	if (!cache->core[core_id].opened)
 		return true;
 
-	if (ocf_cache_line_is_used(
-			cache->device->concurrency.cache_line,
+	if (ocf_cache_line_is_used(ocf_cache_line_concurrency(cache),
 			cache_line)) {
 		return true;
 	}