1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index 3d754a394e92..9978b614a1aa 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -119,8 +119,10 @@ struct dma_buf {
        struct file *file;
        struct list_head attachments;
        const struct dma_buf_ops *ops;
-        /* mutex to serialize list manipulation and attach/detach */
+        /* mutex to serialize list manipulation, attach/detach and vmap/unmap */
        struct mutex lock;
+        unsigned vmapping_counter;
+        void *vmap_ptr;
        void *priv;
 };