crimson/os/seastore/btree: correct out-dated comments

Signed-off-by: Xuehan Xu <xuxuehan@qianxin.com>
(cherry picked from commit 0de50ca29e21d0e1e57df85316b231ac043ba8d5)

diff --git a/src/crimson/os/seastore/btree/fixed_kv_node.h b/src/crimson/os/seastore/btree/fixed_kv_node.h
index 79495cb35d129607e6719f27cbb4cff897ccd592..21fe5c72facb21e8c8b665b5c54925f26e22cf0e 100644 (file)
--- a/src/crimson/os/seastore/btree/fixed_kv_node.h
+++ b/src/crimson/os/seastore/btree/fixed_kv_node.h
@@ -130,7 +130,7 @@ struct FixedKVNode : ChildableCachedExtent {
       children[offset] = child;
       set_child_ptracker(child);
     } else {
-      // this can only happen when reserving lba spaces
+      // this can happen when reserving lba spaces and cloning mappings
       ceph_assert(is_leaf_and_has_children());
       // this is to avoid mistakenly copying pointers from
       // copy sources when committing this lba node, because