[PATCH v6 5/5] selftests: vm: add /dev/userfaultfd test cases to run_vmtests.sh

[Axel Rasmussen]

This new mode was recently added to the userfaultfd selftest. We want to
exercise both userfaultfd(2) as well as /dev/userfaultfd, so add both
test cases to the script.

Reviewed-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Acked-by: Peter Xu <peterx@xxxxxxxxxx>
Signed-off-by: Axel Rasmussen <axelrasmussen@xxxxxxxxxx>
---
 tools/testing/selftests/vm/run_vmtests.sh | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/tools/testing/selftests/vm/run_vmtests.sh b/tools/testing/selftests/vm/run_vmtests.sh
index b8e7f6f38d64..e780e76c26b8 100755
--- a/tools/testing/selftests/vm/run_vmtests.sh
+++ b/tools/testing/selftests/vm/run_vmtests.sh
@@ -120,13 +120,16 @@ run_test ./gup_test -a
 # Dump pages 0, 19, and 4096, using pin_user_pages:
 run_test ./gup_test -ct -F 0x1 0 19 0x1000
 
-run_test ./userfaultfd anon 20 16
-# Hugetlb tests require source and destination huge pages. Pass in half the
-# size ($half_ufd_size_MB), which is used for *each*.
-run_test ./userfaultfd hugetlb "$half_ufd_size_MB" 32
-run_test ./userfaultfd hugetlb_shared "$half_ufd_size_MB" 32 "$mnt"/uffd-test
-rm -f "$mnt"/uffd-test
-run_test ./userfaultfd shmem 20 16
+uffd_mods=("" ":dev")
+for mod in "${uffd_mods[@]}"; do
+	run_test ./userfaultfd anon${mod} 20 16
+	# Hugetlb tests require source and destination huge pages. Pass in half
+	# the size ($half_ufd_size_MB), which is used for *each*.
+	run_test ./userfaultfd hugetlb${mod} "$half_ufd_size_MB" 32
+	run_test ./userfaultfd hugetlb_shared${mod} "$half_ufd_size_MB" 32 "$mnt"/uffd-test
+	rm -f "$mnt"/uffd-test
+	run_test ./userfaultfd shmem${mod} 20 16
+done
 
 #cleanup
 umount "$mnt"
-- 
2.37.1.595.g718a3a8f04-goog