[PATCH 5.8 191/633] selftests: vm: add fragment CONFIG_GUP_BENCHMARK

[Greg Kroah-Hartman]

From: Anatoly Pugachev <matorola@xxxxxxxxx>

[ Upstream commit cae1d5a2c5a491141faa747e9944ba40ab4ab786 ]

When running gup_benchmark test the following output states that
the config options is missing.

$ sudo ./gup_benchmark
open: No such file or directory

$ sudo strace -e trace=file ./gup_benchmark 2>&1 | tail -3
openat(AT_FDCWD, "/sys/kernel/debug/gup_benchmark", O_RDWR) = -1 ENOENT
(No such file or directory)
open: No such file or directory
+++ exited with 1 +++

Fix it by adding config option fragment.

Fixes: 64c349f4ae78 ("mm: add infrastructure for get_user_pages_fast() benchmarking")
Signed-off-by: Anatoly Pugachev <matorola@xxxxxxxxx>
CC: Jiri Kosina <trivial@xxxxxxxxxx>
CC: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 tools/testing/selftests/vm/config | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/vm/config b/tools/testing/selftests/vm/config
index 3ba674b64fa9f..69dd0d1aa30b2 100644
--- a/tools/testing/selftests/vm/config
+++ b/tools/testing/selftests/vm/config
@@ -3,3 +3,4 @@ CONFIG_USERFAULTFD=y
 CONFIG_TEST_VMALLOC=m
 CONFIG_DEVICE_PRIVATE=y
 CONFIG_TEST_HMM=m
+CONFIG_GUP_BENCHMARK=y
-- 
2.25.1