btrfs-progs: tests: enable check lowmem in travis CI

[platform/upstream/btrfs-progs.git] / cmds-check.c

diff --git a/cmds-check.c b/cmds-check.c
index 791fab6..e746ee7 100644 (file)
--- a/cmds-check.c
+++ b/cmds-check.c
@@ -12518,11 +12518,17 @@ static int check_extent_data_backref(struct btrfs_fs_info *fs_info,
                 * Except normal disk bytenr and disk num bytes, we still
                 * need to do extra check on dbackref offset as
                 * dbackref offset = file_offset - file_extent_offset
+                *
+                * Also, we must check the leaf owner.
+                * In case of shared tree blocks (snapshots) we can inherit
+                * leaves from source snapshot.
+                * In that case, reference from source snapshot should not
+                * count.
                 */
                if (btrfs_file_extent_disk_bytenr(leaf, fi) == bytenr &&
                    btrfs_file_extent_disk_num_bytes(leaf, fi) == len &&
                    (u64)(key.offset - btrfs_file_extent_offset(leaf, fi)) ==
-                   offset)
+                   offset && btrfs_header_owner(leaf) == root_id)
                        found_count++;
 
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