diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index 4c64daa..61b359d 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -438,8 +438,10 @@
 		/* Mark page dirty if it was possibly modified, which
 		 * is the case for a RDMA_READ which copies from remote
 		 * to local memory */
-		if (!ro->r_write)
+		if (!ro->r_write) {
+			BUG_ON(in_interrupt());
 			set_page_dirty(page);
+		}
 		put_page(page);
 	}