crimson/os/seastore/FixedKVBtree: use min_max_t<>::min to build begin iterator

Signed-off-by: Zhang Song <zhangsong02@qianxin.com>
(cherry picked from commit 6ef9ee1697ddf528d53ce4ec92c45ea0bb32d851)

diff --git a/src/crimson/os/seastore/btree/fixed_kv_btree.h b/src/crimson/os/seastore/btree/fixed_kv_btree.h
index dd1ff0e1fe4aa07ff10d1d38a6d205d439437b1b..9db2d89ce6e4baf05e02dc8e47799d7c75317c94 100644 (file)
--- a/src/crimson/os/seastore/btree/fixed_kv_btree.h
+++ b/src/crimson/os/seastore/btree/fixed_kv_btree.h
@@ -465,7 +465,7 @@ public:
   }
 
   iterator_fut begin(op_context_t<node_key_t> c) const {
-    return lower_bound(c, 0);
+    return lower_bound(c, min_max_t<node_key_t>::min);
   }
   iterator_fut end(op_context_t<node_key_t> c) const {
     return upper_bound(c, min_max_t<node_key_t>::max);