diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 77615aabc7e2..19d2102b6a69 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -226,7 +226,6 @@ static struct inode *alloc_gcinode(struct the_nilfs *nilfs, ino_t ino,
 	ii->i_flags = 0;
 	ii->i_state = 1 << NILFS_I_GCINODE;
 	ii->i_bh = NULL;
-	ii->i_dtime = 0;
 	nilfs_bmap_init_gc(ii->i_bmap);
 
 	return inode;
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index a1922b17662c..49ab4a49bb4f 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -306,7 +306,6 @@ struct inode *nilfs_new_inode(struct inode *dir, int mode)
 
 	/* ii->i_file_acl = 0; */
 	/* ii->i_dir_acl = 0; */
-	ii->i_dtime = 0;
 	ii->i_dir_start_lookup = 0;
 #ifdef CONFIG_NILFS_FS_POSIX_ACL
 	ii->i_acl = NULL;
@@ -390,11 +389,10 @@ int nilfs_read_inode_common(struct inode *inode,
 	inode->i_atime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
 	inode->i_ctime.tv_sec = le64_to_cpu(raw_inode->i_ctime);
 	inode->i_mtime.tv_sec = le64_to_cpu(raw_inode->i_mtime);
-	inode->i_atime.tv_nsec = 0;
-	inode->i_ctime.tv_nsec = 0;
-	inode->i_mtime.tv_nsec = 0;
-	ii->i_dtime = le64_to_cpu(raw_inode->i_dtime);
-	if (inode->i_nlink == 0 && (inode->i_mode == 0 || ii->i_dtime))
+	inode->i_atime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
+	inode->i_ctime.tv_nsec = le32_to_cpu(raw_inode->i_ctime_nsec);
+	inode->i_mtime.tv_nsec = le32_to_cpu(raw_inode->i_mtime_nsec);
+	if (inode->i_nlink == 0 && inode->i_mode == 0)
 		return -EINVAL; /* this inode is deleted */
 
 	inode->i_blocks = le64_to_cpu(raw_inode->i_blocks);
@@ -505,9 +503,10 @@ void nilfs_write_inode_common(struct inode *inode,
 	raw_inode->i_size = cpu_to_le64(inode->i_size);
 	raw_inode->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
 	raw_inode->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
+	raw_inode->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
+	raw_inode->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
 	raw_inode->i_blocks = cpu_to_le64(inode->i_blocks);
 
-	raw_inode->i_dtime = cpu_to_le64(ii->i_dtime);
 	raw_inode->i_flags = cpu_to_le32(ii->i_flags);
 	raw_inode->i_generation = cpu_to_le32(inode->i_generation);
 
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 19af5ab86275..7558c977db02 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -48,7 +48,6 @@ struct nilfs_inode_info {
 	struct nilfs_bmap *i_bmap;
 	union nilfs_bmap_union i_bmap_union;
 	__u64 i_xattr;	/* sector_t ??? */
-	__u32 i_dtime;
 	__u32 i_dir_start_lookup;
 	__u64 i_cno;		/* check point number for GC inode */
 	struct address_space i_btnode_cache;
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index e2ced824c624..e117e1ea9bff 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -792,6 +792,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent,
 	sb->s_op = &nilfs_sops;
 	sb->s_export_op = &nilfs_export_ops;
 	sb->s_root = NULL;
+	sb->s_time_gran = 1;
 
 	if (!nilfs_loaded(nilfs)) {
 		err = load_nilfs(nilfs, sbi);
diff --git a/include/linux/nilfs2_fs.h b/include/linux/nilfs2_fs.h
index 1275b3099535..79fec6af3f9f 100644
--- a/include/linux/nilfs2_fs.h
+++ b/include/linux/nilfs2_fs.h
@@ -67,9 +67,10 @@
  * struct nilfs_inode - structure of an inode on disk
  * @i_blocks: blocks count
  * @i_size: size in bytes
- * @i_ctime: creation time
- * @i_mtime: modification time
- * @i_dtime: deletion time
+ * @i_ctime: creation time (seconds)
+ * @i_mtime: modification time (seconds)
+ * @i_ctime_nsec: creation time (nano seconds)
+ * @i_mtime_nsec: modification time (nano seconds)
  * @i_uid: user id
  * @i_gid: group id
  * @i_mode: file mode
@@ -85,7 +86,8 @@ struct nilfs_inode {
 	__le64	i_size;
 	__le64	i_ctime;
 	__le64	i_mtime;
-	__le64	i_dtime;
+	__le32	i_ctime_nsec;
+	__le32	i_mtime_nsec;
 	__le32	i_uid;
 	__le32	i_gid;
 	__le16	i_mode;