Add kick function for cleaner

ocf_kick_cleaner() allows to perfom cleaning immediately.

Nop cleaning policy now returns new 'OCF_CLEANER_DISABLE' macro which indicates
that cleaing shouldn't be performed. To enable it back, ocf_kick_cleaner()
should be called.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>

src/cleaning/acp.c

@@ -316,6 +316,7 @@ int cleaning_policy_acp_initialize(struct ocf_cache *cache,
 	}
 
 	_acp_rebuild(cache);
+	ocf_kick_cleaner(cache);
 
 	return 0;
 }
@@ -336,6 +337,7 @@ int cleaning_policy_acp_set_cleaning_param(ocf_cache_t cache,
 		config->thread_wakeup_time = param_value;
 		ocf_cache_log(cache, log_info, "Write-back flush thread "
 			"wake-up time: %d\n", config->thread_wakeup_time);
+		ocf_kick_cleaner(cache);
 		break;
 	case ocf_acp_flush_max_buffers:
 		OCF_CLEANING_CHECK_PARAM(cache, param_value,

src/cleaning/alru.c

@@ -470,6 +470,8 @@ int cleaning_policy_alru_initialize(ocf_cache_t cache, int init_metadata)
 	if (init_metadata)
 		_alru_rebuild(cache);
 
+	ocf_kick_cleaner(cache);
+
 	return 0;
 }
 
@@ -495,6 +497,7 @@ int cleaning_policy_alru_set_cleaning_param(ocf_cache_t cache,
 		config->thread_wakeup_time = param_value;
 		ocf_cache_log(cache, log_info, "Write-back flush thread "
 			"wake-up time: %d\n", config->thread_wakeup_time);
+		ocf_kick_cleaner(cache);
 		break;
 	case ocf_alru_stale_buffer_time:
 		OCF_CLEANING_CHECK_PARAM(cache, param_value,

src/cleaning/cleaning.c

@@ -59,6 +59,11 @@ void ocf_stop_cleaner(ocf_cache_t cache)
 	ctx_cleaner_stop(cache->owner, &cache->cleaner);
 }
 
+void ocf_kick_cleaner(ocf_cache_t cache)
+{
+	ctx_cleaner_kick(cache->owner, &cache->cleaner);
+}
+
 void ocf_cleaner_set_cmpl(ocf_cleaner_t cleaner, ocf_cleaner_end_t fn)
 {
 	cleaner->end = fn;

src/cleaning/cleaning.h

@@ -68,6 +68,8 @@ struct ocf_cleaner {
 
 int ocf_start_cleaner(ocf_cache_t cache);
 
+void ocf_kick_cleaner(ocf_cache_t cache);
+
 void ocf_stop_cleaner(ocf_cache_t cache);
 
 #endif

src/cleaning/nop.c

@@ -9,6 +9,5 @@
 
 void cleaning_nop_perform_cleaning(ocf_cache_t cache, ocf_cleaner_end_t cmpl)
 {
-	uint32_t interval = SLEEP_TIME_MS;
-	cmpl(&cache->cleaner, interval);
+	cmpl(&cache->cleaner, OCF_CLEANER_DISABLE);
 }