[LTP] [PATCH v1 01/10] lapi: Add a configure check and fallback for loop ioctl and flag

[Yang Xu]

Signed-off-by: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
---
 configure.ac        |  1 +
 include/lapi/loop.h | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)
 create mode 100644 include/lapi/loop.h

diff --git a/configure.ac b/configure.ac
index e1069b57e..e088cb564 100644
--- a/configure.ac
+++ b/configure.ac
@@ -50,6 +50,7 @@ AC_CHECK_HEADERS([ \
     linux/if_ether.h \
     linux/if_packet.h \
     linux/keyctl.h \
+    linux/loop.h \
     linux/mempolicy.h \
     linux/module.h \
     linux/netlink.h \
diff --git a/include/lapi/loop.h b/include/lapi/loop.h
new file mode 100644
index 000000000..bc6d9950d
--- /dev/null
+++ b/include/lapi/loop.h
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2020 FUJITSU LIMITED. All rights reserved.
+ * Author: Yang Xu <xuyang2018.jy@cn.fujitsu.com>
+ */
+#ifndef LAPI_LOOP_H
+#define LAPI_LOOP_H
+
+#include <linux/types.h>
+#ifdef HAVE_LINUX_LOOP_H
+# include <linux/loop.h>
+#endif
+
+#ifndef LO_FLAGS_PARTSCAN
+# define LO_FLAGS_PARTSCAN 8
+#endif
+
+#ifndef LO_FLAGS_DIRECT_IO
+# define LO_FLAGS_DIRECT_IO 16
+#endif
+
+#ifndef LOOP_SET_CAPACITY
+# define LOOP_SET_CAPACITY 0x4C07
+#endif
+
+#ifndef LOOP_SET_DIRECT_IO
+# define LOOP_SET_DIRECT_IO 0x4C08
+#endif
+
+#ifndef LOOP_SET_BLOCK_SIZE
+# define LOOP_SET_BLOCK_SIZE 0x4C09
+#endif
+
+#endif
+
-- 
2.23.0