1 files changed, 18 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/src/include/cache_inline.h b/src/third_party/wiredtiger/src/include/cache_inline.h
index 4061d5b52f6..4015196fd6d 100644
--- a/src/third_party/wiredtiger/src/include/cache_inline.h
+++ b/src/third_party/wiredtiger/src/include/cache_inline.h
@@ -446,6 +446,24 @@ __wt_cache_full(WT_SESSION_IMPL *session)
 }
 
 /*
+ * __wt_cache_hs_dirty --
+ *     Return if a major portion of the cache is dirty due to history store content.
+ */
+static inline bool
+__wt_cache_hs_dirty(WT_SESSION_IMPL *session)
+{
+    WT_CACHE *cache;
+    WT_CONNECTION_IMPL *conn;
+    uint64_t bytes_max;
+    conn = S2C(session);
+    cache = conn->cache;
+    bytes_max = S2C(session)->cache_size;
+
+    return (__wt_cache_bytes_plus_overhead(cache, cache->bytes_hs_dirty) >=
+      ((uint64_t)(cache->eviction_dirty_trigger * bytes_max) / 100));
+}
+
+/*
  * __wt_cache_eviction_check --
  *     Evict pages if the cache crosses its boundaries.
  */