f2fs: fix iget/iput of dir during recovery

It is possible that iput is skipped after iget during the recovery.

In recover_dentry(),
 dir = f2fs_iget();
 ...
 if (de && inode->i_ino == le32_to_cpu(de->ino))
	goto out;

In this case, this dir is not able to be added in dirty_dir_inode_list.
The actual linking is done only when set_page_dirty() is called.

So let's add this newly got inode into the list explicitly, and put it at the
end of the recovery routine.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 539ca32..ddde14f 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -58,6 +58,7 @@
 			goto out;
 		}
 		set_inode_flag(F2FS_I(dir), FI_DELAY_IPUT);
+		add_dirty_dir_inode(dir);
 	}
 
 	name.len = le32_to_cpu(raw_inode->i_namelen);