Btrfs: Add lowest key information to back refs for extent tree blocks as well.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 4 insertions, 7 deletions

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 5b1f90f06e03..1cc4d285951c 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -545,13 +545,10 @@ next_slot:
                         u64 disk_num_bytes = 0;
                         u64 extent_num_bytes = 0;
                         u64 root_gen;
+                        u64 root_owner;
 
-                        if (leaf != root->node) {
-                                root_gen =
-                                        btrfs_header_generation(path->nodes[1]);
-                        } else {
-                                root_gen = btrfs_header_generation(leaf);
-                        }
+                        root_gen = btrfs_header_generation(leaf);
+                        root_owner = btrfs_header_owner(leaf);
                         if (found_extent) {
                                 disk_bytenr =
                                       btrfs_file_extent_disk_bytenr(leaf,
@@ -575,7 +572,7 @@ next_slot:
                                 ret = btrfs_free_extent(trans, root,
                                                 disk_bytenr,
                                                 disk_num_bytes,
-                                                root->root_key.objectid,
+                                                root_owner,
                                                 root_gen, inode->i_ino,
                                                 key.offset, 0);
                         }