diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 948b1f8..06713ff 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -571,6 +571,8 @@
 {
 	struct nilfs_mdt_info *mdi = NILFS_MDT(inode);
 
+	if (mdi->mi_palloc_cache)
+		nilfs_palloc_destroy_cache(inode);
 	nilfs_mdt_clear(inode);
 
 	kfree(mdi->mi_bgl); /* kfree(NULL) is safe */