1 files changed, 10 insertions, 1 deletions

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index cbd3a7d6fa68..88d1b1eedc9c 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -5376,6 +5376,8 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
         int advance_right;
         u64 left_blockptr;
         u64 right_blockptr;
+        u64 left_gen;
+        u64 right_gen;
         u64 left_start_ctransid;
         u64 right_start_ctransid;
         u64 ctransid;
@@ -5640,7 +5642,14 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
                                 right_blockptr = btrfs_node_blockptr(
                                                 right_path->nodes[right_level],
                                                 right_path->slots[right_level]);
-                                if (left_blockptr == right_blockptr) {
+                                left_gen = btrfs_node_ptr_generation(
+                                                left_path->nodes[left_level],
+                                                left_path->slots[left_level]);
+                                right_gen = btrfs_node_ptr_generation(
+                                                right_path->nodes[right_level],
+                                                right_path->slots[right_level]);
+                                if (left_blockptr == right_blockptr &&
+                                    left_gen == right_gen) {
                                         /*
                                          * As we're on a shared block, don't
                                          * allow to go deeper.