[PATCH AUTOSEL 4.20 26/77] selftests/vm/gup_benchmark.c: match gup struct to kernel

Sasha Levin
2019-02-15T02:41:23Z

From: Alison Schofield <alison.schofield@intel.com>

[ Upstream commit 91cd63d320f84dcbf21d4327f31f7e1f85adebd0 ]

An expansion field was added to the kernel copy of this structure for
future use. See mm/gup_benchmark.c.

Add the same expansion field here, so that the IOCTL command decodes
correctly. Otherwise, it fails with EINVAL.

Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Shuah Khan <shuah@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/testing/selftests/vm/gup_benchmark.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/vm/gup_benchmark.c b/tools/testing/selftests/vm/gup_benchmark.c
index 880b96fc80d4..c0534e298b51 100644
--- a/tools/testing/selftests/vm/gup_benchmark.c
+++ b/tools/testing/selftests/vm/gup_benchmark.c
@@ -25,6 +25,7 @@ struct gup_benchmark {
__u64 size;
__u32 nr_pages_per_call;
__u32 flags;
+ __u64 expansion[10]; /* For future use */
};

int main(int argc, char **argv)
--
2.19.1