From 3e151f025d86a04a321005ad3a657058662fe4bd Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@virtuozzo.com>
Date: Thu, 6 Jul 2017 12:38:48 +0300
Subject: [PATCH] page-read: Warn about async read w/o completion cb

Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
Signed-off-by: Andrei Vagin <avagin@virtuozzo.com>
---
 criu/pagemap.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/criu/pagemap.c b/criu/pagemap.c
index fec125d08..a61a95450 100644
--- a/criu/pagemap.c
+++ b/criu/pagemap.c
@@ -445,6 +445,8 @@ static int read_page_complete(unsigned long img_id, unsigned long vaddr, int nr_
 
 	if (pr->io_complete)
 		ret = pr->io_complete(pr, vaddr, nr_pages);
+	else
+		pr_warn_once("Remote page read w/o io_complete!\n");
 
 	return ret;
 }