From: Xuehan Xu <xuxuehan@qianxin.com>
Date: Wed, 3 Jun 2026 02:09:12 +0000 (+0800)
Subject: crimson/os/seastore/btree: correct the sync search of leaf nodes to do
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=f6518525cd836ad1f9b7f3b1e532b33570e92bc3;p=ceph.git

crimson/os/seastore/btree: correct the sync search of leaf nodes to do
lower_bound instead of upper_bound

Signed-off-by: Xuehan Xu <xuxuehan@qianxin.com>
---

diff --git a/src/crimson/os/seastore/btree/fixed_kv_btree.h b/src/crimson/os/seastore/btree/fixed_kv_btree.h
index c31b713ecff..8e65e9e4e68 100644
--- a/src/crimson/os/seastore/btree/fixed_kv_btree.h
+++ b/src/crimson/os/seastore/btree/fixed_kv_btree.h
@@ -577,7 +577,7 @@ public:
         iter.leaf.node = child;
       }
     }
-    auto it = iter.leaf.node->upper_bound(addr);
+    auto it = iter.leaf.node->lower_bound(addr);
     iter.leaf.pos = it->get_offset();
     SUBTRACET(
       seastore_fixedkv_tree,
diff --git a/src/crimson/os/seastore/lba/btree_lba_manager.cc b/src/crimson/os/seastore/lba/btree_lba_manager.cc
index f6e415c0e82..8dcb294be44 100644
--- a/src/crimson/os/seastore/lba/btree_lba_manager.cc
+++ b/src/crimson/os/seastore/lba/btree_lba_manager.cc
@@ -1139,6 +1139,7 @@ void BtreeLBAManager::update_paddr_sync(
   auto iter = btree.lower_bound_sync(c, laddr);
   assert(iter.get_leaf_node()->is_pending());
   auto cursor = iter.get_cursor(c);
+  assert(cursor->get_laddr() == laddr);
   btree.update(
     c,
     std::move(iter),