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-rw-r--r--include/migration/page_cache.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/migration/page_cache.h b/include/migration/page_cache.h
index 87894fe..d156f0d 100644
--- a/include/migration/page_cache.h
+++ b/include/migration/page_cache.h
@@ -60,11 +60,13 @@ uint8_t *get_cached_data(const PageCache *cache, uint64_t addr);
* cache_insert: insert the page into the cache. the page cache
* will dup the data on insert. the previous value will be overwritten
*
+ * Returns -1 on error
+ *
* @cache pointer to the PageCache struct
* @addr: page address
* @pdata: pointer to the page
*/
-void cache_insert(PageCache *cache, uint64_t addr, uint8_t *pdata);
+int cache_insert(PageCache *cache, uint64_t addr, uint8_t *pdata);
/**
* cache_resize: resize the page cache. In case of size reduction the extra