diff options
Diffstat (limited to 'migration')
| -rw-r--r-- | migration/page_cache.c | 56 | ||||
| -rw-r--r-- | migration/page_cache.h | 11 |
2 files changed, 0 insertions, 67 deletions
diff --git a/migration/page_cache.c b/migration/page_cache.c index 5f8578736e..ba984c4858 100644 --- a/migration/page_cache.c +++ b/migration/page_cache.c @@ -178,59 +178,3 @@ int cache_insert(PageCache *cache, uint64_t addr, const uint8_t *pdata, return 0; } - -int64_t cache_resize(PageCache *cache, int64_t new_num_pages) -{ - PageCache *new_cache; - int64_t i; - - CacheItem *old_it, *new_it; - - g_assert(cache); - - /* cache was not inited */ - if (cache->page_cache == NULL) { - return -1; - } - - /* same size */ - if (pow2floor(new_num_pages) == cache->max_num_items) { - return cache->max_num_items; - } - - new_cache = cache_init(new_num_pages, cache->page_size); - if (!(new_cache)) { - DPRINTF("Error creating new cache\n"); - return -1; - } - - /* move all data from old cache */ - for (i = 0; i < cache->max_num_items; i++) { - old_it = &cache->page_cache[i]; - if (old_it->it_addr != -1) { - /* check for collision, if there is, keep MRU page */ - new_it = cache_get_by_addr(new_cache, old_it->it_addr); - if (new_it->it_data && new_it->it_age >= old_it->it_age) { - /* keep the MRU page */ - g_free(old_it->it_data); - } else { - if (!new_it->it_data) { - new_cache->num_items++; - } - g_free(new_it->it_data); - new_it->it_data = old_it->it_data; - new_it->it_age = old_it->it_age; - new_it->it_addr = old_it->it_addr; - } - } - } - - g_free(cache->page_cache); - cache->page_cache = new_cache->page_cache; - cache->max_num_items = new_cache->max_num_items; - cache->num_items = new_cache->num_items; - - g_free(new_cache); - - return cache->max_num_items; -} diff --git a/migration/page_cache.h b/migration/page_cache.h index 10ed53274c..4fadd0c501 100644 --- a/migration/page_cache.h +++ b/migration/page_cache.h @@ -72,15 +72,4 @@ uint8_t *get_cached_data(const PageCache *cache, uint64_t addr); int cache_insert(PageCache *cache, uint64_t addr, const uint8_t *pdata, uint64_t current_age); -/** - * cache_resize: resize the page cache. In case of size reduction the extra - * pages will be freed - * - * Returns -1 on error new cache size on success - * - * @cache pointer to the PageCache struct - * @num_pages: new page cache size (in pages) - */ -int64_t cache_resize(PageCache *cache, int64_t num_pages); - #endif |