1 files changed, 4 insertions, 0 deletions

diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 33400cf0bbe2..7f65b3be4aa9 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -115,6 +115,7 @@ void put_nilfs(struct the_nilfs *nilfs)
 static int nilfs_load_super_root(struct the_nilfs *nilfs,
                                  struct nilfs_sb_info *sbi, sector_t sr_block)
 {
+        static struct lock_class_key dat_lock_key;
         struct buffer_head *bh_sr;
         struct nilfs_super_root *raw_sr;
         struct nilfs_super_block **sbp = nilfs->ns_sbp;
@@ -163,6 +164,9 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs,
         if (unlikely(err))
                 goto failed_sufile;
 
+        lockdep_set_class(&NILFS_MDT(nilfs->ns_dat)->mi_sem, &dat_lock_key);
+        lockdep_set_class(&NILFS_MDT(nilfs->ns_gc_dat)->mi_sem, &dat_lock_key);
+
         nilfs_mdt_set_shadow(nilfs->ns_dat, nilfs->ns_gc_dat);
         nilfs_mdt_set_entry_size(nilfs->ns_cpfile, checkpoint_size,
                                  sizeof(struct nilfs_cpfile_header));