diff --git a/src/fast_mblock.h b/src/fast_mblock.h
index fac9720..c18796b 100644
--- a/src/fast_mblock.h
+++ b/src/fast_mblock.h
@@ -263,6 +263,23 @@ return 0 for success, return none zero if fail
 int fast_mblock_batch_free(struct fast_mblock_man *mblock,
         struct fast_mblock_chain *chain);
 
+/**
+batch free objects
+parameters:
+	mblock: the mblock pointer
+	head: the head object
+	tail: the tail object
+return 0 for success, return none zero if fail
+*/
+static inline int fast_mblock_batch_free_objs(struct fast_mblock_man
+        *mblock, void *head, void *tail)
+{
+    struct fast_mblock_chain chain;
+    chain.head = fast_mblock_to_node_ptr(head);
+    chain.tail = fast_mblock_to_node_ptr(tail);
+    return fast_mblock_batch_free(mblock, &chain);
+}
+
 /**
 delay free a node (put a node to the mblock)
 parameters:
diff --git a/src/sorted_queue.c b/src/sorted_queue.c
index 58e8cdc..6e0bf03 100644
--- a/src/sorted_queue.c
+++ b/src/sorted_queue.c
@@ -102,16 +102,15 @@ void *sorted_queue_pop_ex(struct sorted_queue *sq,
 	return data;
 }
 
-void *sorted_queue_pop_all_ex(struct sorted_queue *sq,
-        void *less_equal, const bool blocked)
+void sorted_queue_pop_to_queue_ex(struct sorted_queue *sq,
+        void *less_equal, struct fc_queue_info *qinfo,
+        const bool blocked)
 {
-    struct fc_queue_info chain;
-
     PTHREAD_MUTEX_LOCK(&sq->queue.lc_pair.lock);
     do {
         if (sq->queue.head == NULL) {
             if (!blocked) {
-                chain.head = NULL;
+                qinfo->head = qinfo->tail = NULL;
                 break;
             }
 
@@ -120,27 +119,30 @@ void *sorted_queue_pop_all_ex(struct sorted_queue *sq,
         }
 
         if (sq->queue.head == NULL) {
-            chain.head = NULL;
+            qinfo->head = qinfo->tail = NULL;
         } else {
             if (sq->compare_func(sq->queue.head, less_equal) <= 0) {
-                chain.head = chain.tail = sq->queue.head;
-                sq->queue.head = FC_QUEUE_NEXT_PTR(&sq->queue, sq->queue.head);
-                while (sq->compare_func(sq->queue.head, less_equal) <= 0) {
-                    chain.tail = sq->queue.head;
-                    sq->queue.head = FC_QUEUE_NEXT_PTR(&sq->queue, sq->queue.head);
+                qinfo->head = qinfo->tail = sq->queue.head;
+                sq->queue.head = FC_QUEUE_NEXT_PTR(&sq->queue,
+                        sq->queue.head);
+                while (sq->queue.head != NULL && sq->compare_func(
+                            sq->queue.head, less_equal) <= 0)
+                {
+                    qinfo->tail = sq->queue.head;
+                    sq->queue.head = FC_QUEUE_NEXT_PTR(
+                            &sq->queue, sq->queue.head);
                 }
 
                 if (sq->queue.head == NULL) {
                     sq->queue.tail = NULL;
                 } else {
-                    FC_QUEUE_NEXT_PTR(&sq->queue, chain.tail) = NULL;
+                    FC_QUEUE_NEXT_PTR(&sq->queue, qinfo->tail) = NULL;
                 }
             } else {
-                chain.head = NULL;
+                qinfo->head = qinfo->tail = NULL;
             }
         }
     } while (0);
 
     PTHREAD_MUTEX_UNLOCK(&sq->queue.lc_pair.lock);
-	return chain.head;
 }
diff --git a/src/sorted_queue.h b/src/sorted_queue.h
index f9e1e88..0004226 100644
--- a/src/sorted_queue.h
+++ b/src/sorted_queue.h
@@ -75,8 +75,25 @@ void *sorted_queue_pop_ex(struct sorted_queue *sq,
 #define sorted_queue_try_pop(sq, less_equal) \
     sorted_queue_pop_ex(sq, less_equal, false)
 
-void *sorted_queue_pop_all_ex(struct sorted_queue *sq,
-        void *less_equal, const bool blocked);
+
+void sorted_queue_pop_to_queue_ex(struct sorted_queue *sq,
+        void *less_equal, struct fc_queue_info *qinfo,
+        const bool blocked);
+
+#define sorted_queue_pop_to_queue(sq, less_equal, qinfo) \
+    sorted_queue_pop_to_queue_ex(sq, less_equal, qinfo, true)
+
+#define sorted_queue_try_pop_to_queue(sq, less_equal, qinfo) \
+    sorted_queue_pop_to_queue_ex(sq, less_equal, qinfo, false)
+
+
+static inline void *sorted_queue_pop_all_ex(struct sorted_queue *sq,
+        void *less_equal, const bool blocked)
+{
+    struct fc_queue_info chain;
+    sorted_queue_pop_to_queue_ex(sq, less_equal, &chain, blocked);
+    return chain.head;
+}
 
 #define sorted_queue_pop_all(sq, less_equal)  \
     sorted_queue_pop_all_ex(sq, less_equal, true)