linux-kernel - [PATCH] selftests/overlayfs: fix compilation error in overlayfs

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Date: Mon, 19 Feb 2024 15:50:29 +0800
From: Meng Li <li.meng@....com>
To: Shuah Khan <skhan@...uxfoundation.org>, Andrei Vagin <avagin@...gle.com>,
	Huang Rui <ray.huang@....com>, <linux-pm@...r.kernel.org>
CC: Nathan Fontenot <nathan.fontenot@....com>, Deepak Sharma
	<deepak.sharma@....com>, Alex Deucher <alexander.deucher@....com>, "Mario
 Limonciello" <mario.limonciello@....com>, Jinzhou Su <Jinzhou.Su@....com>,
	Perry Yuan <Perry.Yuan@....com>, Xiaojian Du <Xiaojian.Du@....com>, "Viresh
 Kumar" <viresh.kumar@...aro.org>, Borislav Petkov <bp@...en8.de>,
	<linux-kernel@...r.kernel.org>, Meng Li <li.meng@....com>
Subject: [PATCH] selftests/overlayfs: fix compilation error in overlayfs

make -C tools/testing/selftests, compiling dev_in_maps fail.
In file included from dev_in_maps.c:10:
/usr/include/x86_64-linux-gnu/sys/mount.h:35:3: error: expected identifier before numeric constant
   35 |   MS_RDONLY = 1,                /* Mount read-only.  */
      |   ^~~~~~~~~

That sys/mount.h has to be included before linux/mount.h.

Signed-off-by: Meng Li <li.meng@....com>
---
 tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c b/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
index e19ab0e85709..871a0923c06e 100644
--- a/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
+++ b/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
@@ -7,11 +7,11 @@
 
 #include <linux/unistd.h>
 #include <linux/types.h>
-#include <linux/mount.h>
 #include <sys/syscall.h>
 #include <sys/stat.h>
 #include <sys/mount.h>
 #include <sys/mman.h>
+#include <linux/mount.h>
 #include <sched.h>
 #include <fcntl.h>
 
-- 
2.34.1