Evict from overflown pinned ioclass
If an ioclass is pinned but it exceeded its occupancy limit, it should be
evicted anyway.
@@ -62,7 +62,7 @@ static inline uint32_t ocf_evict_part_do(ocf_cache_t cache,
static inline uint32_t ocf_evict_partitions(ocf_cache_t cache,
ocf_queue_t io_queue, uint32_t evict_cline_no,
- bool overflown_only, uint32_t max_priority)
+ bool overflown_only, int16_t max_priority)
{
uint32_t to_evict = 0, evicted = 0;
struct ocf_user_part *part;
@@ -84,8 +84,9 @@ static inline uint32_t ocf_evict_partitions(ocf_cache_t cache,
*/
break;
}
- if (!part->config->flags.eviction) {
- /* no more partitions available for viction
+ if (!overflown_only && !part->config->flags.eviction) {
+ /* If partition is overflown it should be evcited
+ * even if its pinned
*/
break;
}
@@ -132,8 +133,9 @@ static inline uint32_t ocf_evict_do(ocf_cache_t cache,
* priority in this case, as overflown partitions should
* free its cachelines regardless of destination partition
* priority. */
+
evicted = ocf_evict_partitions(cache, io_queue, evict_cline_no,
- true, OCF_IO_CLASS_PRIO_HIGHEST);
+ true, OCF_IO_CLASS_PRIO_PINNED);
if (evicted >= evict_cline_no)
return evicted;
/* Not enough cachelines in overflown partitions. Go through
