Btrfs: add correct parent to check_dirs when dir got moved

We only added the parent for the new position of a moved dir.
We also need to add the old parent of the moved dir.

Reported-by: Alex Lyakas <alex.bolshoy.btrfs@gmail.com>
Signed-off-by: Alexander Block <ablock84@googlemail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 9e3f6d127d82..328654ea4400 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -2805,6 +2805,17 @@ verbose_printk("btrfs: process_recorded_refs %llu\n", sctx->cur_ino);
                         if (ret < 0)
                                 goto out;
                 }
+        } else if (S_ISDIR(sctx->cur_inode_mode) &&
+                   !list_empty(&sctx->deleted_refs)) {
+                /*
+                 * We have a moved dir. Add the old parent to check_dirs
+                 */
+                cur = list_entry(sctx->deleted_refs.next, struct recorded_ref,
+                                list);
+                ret = ulist_add(check_dirs, cur->dir, cur->dir_gen,
+                                GFP_NOFS);
+                if (ret < 0)
+                        goto out;
         } else if (!S_ISDIR(sctx->cur_inode_mode)) {
                 /*
                  * We have a non dir inode. Go through all deleted refs and