Btrfs: Make sure i_nlink doesn't hit zero too soon during log replay
[linux-3.10.git] / fs / btrfs / tree-log.c
index a93934f..405439c 100644 (file)
@@ -1532,6 +1532,17 @@ static int replay_one_buffer(struct btrfs_root *log, struct extent_buffer *eb,
                                        root, inode, inode->i_size,
                                        BTRFS_EXTENT_DATA_KEY);
                                BUG_ON(ret);
+
+                               /* if the nlink count is zero here, the iput
+                                * will free the inode.  We bump it to make
+                                * sure it doesn't get freed until the link
+                                * count fixup is done
+                                */
+                               if (inode->i_nlink == 0) {
+                                       btrfs_inc_nlink(inode);
+                                       btrfs_update_inode(wc->trans,
+                                                          root, inode);
+                               }
                                iput(inode);
                        }
                        ret = link_to_fixup_dir(wc->trans, root,