rgw: fix gc may cause a large number of read traffic

fix http://tracker.ceph.com/issues/24767

Signed-off-by: Xin Liao <liaoxin01@baidu.com>
(cherry picked from commit afc3b1ab1f6b24267c5ab846e2e7a5de5ec9a5d0)

diff --git a/src/cls/rgw/cls_rgw.cc b/src/cls/rgw/cls_rgw.cc
index bb8876cf8a4fa620cb08c93714dfd09fcfae6bbe..ba2c3dad43de3acc5c80039b03aa95bf641f1385 100644 (file)
--- a/src/cls/rgw/cls_rgw.cc
+++ b/src/cls/rgw/cls_rgw.cc
@@ -3333,8 +3333,11 @@ static int gc_iterate_entries(cls_method_context_t hctx, const string& marker, b
 
     CLS_LOG(10, "gc_iterate_entries key=%s\n", key.c_str());
 
-    if (!end_key.empty() && key.compare(end_key) >= 0)
+    if (!end_key.empty() && key.compare(end_key) >= 0) {
+      if (truncated)
+        *truncated = false;
       return 0;
+    }
 
     if (!key_in_index(key, GC_OBJ_TIME_INDEX))
       return 0;