[CRIU] [PATCH] img: Warn about absolute paths for parent images dir

[Pavel Emelyanov]

When working with mntns, the absolute path in parent symlink will
not be open-able on restore. However, completely banning this case
is not good.

Affects #116

Signed-off-by: Pavel Emelyanov <xemul at parallels.com>

---

diff --git a/criu/image.c b/criu/image.c
index 4349210..595e1a2 100644
--- a/criu/image.c
+++ b/criu/image.c
@@ -415,6 +415,10 @@ int open_image_dir(char *dir)
 			pr_perror("Can't link parent snapshot");
 			goto err;
 		}
+
+		if (opts.img_parent[0] == '/')
+			pr_warn("Absolute paths for parent links "
+					"may not work on restore!\n");
 	}
 
 	return 0;