linux-kernel - [PATCH v4 5/5] selftests: vm: add /dev/userfaultfd test cases to run

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Message-Id: <20220719195628.3415852-6-axelrasmussen@google.com>
Date:   Tue, 19 Jul 2022 12:56:28 -0700
From:   Axel Rasmussen <axelrasmussen@...gle.com>
To:     Alexander Viro <viro@...iv.linux.org.uk>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        "Dmitry V . Levin" <ldv@...linux.org>,
        Gleb Fotengauer-Malinovskiy <glebfm@...linux.org>,
        Hugh Dickins <hughd@...gle.com>, Jan Kara <jack@...e.cz>,
        Jonathan Corbet <corbet@....net>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Mike Kravetz <mike.kravetz@...cle.com>,
        Mike Rapoport <rppt@...nel.org>, Nadav Amit <namit@...are.com>,
        Peter Xu <peterx@...hat.com>, Shuah Khan <shuah@...nel.org>,
        Suren Baghdasaryan <surenb@...gle.com>,
        Vlastimil Babka <vbabka@...e.cz>, zhangyi <yi.zhang@...wei.com>
Cc:     Axel Rasmussen <axelrasmussen@...gle.com>,
        linux-doc@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        linux-kselftest@...r.kernel.org,
        Shuah Khan <skhan@...uxfoundation.org>
Subject: [PATCH v4 5/5] selftests: vm: add /dev/userfaultfd test cases to run_vmtests.sh

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@...uxfoundation.org>
Acked-by: Peter Xu <peterx@...hat.com>
Signed-off-by: Axel Rasmussen <axelrasmussen@...gle.com>
---
 tools/testing/selftests/vm/run_vmtests.sh | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/testing/selftests/vm/run_vmtests.sh b/tools/testing/selftests/vm/run_vmtests.sh
index e70ae0f3aaf6..156f864030fc 100755
--- a/tools/testing/selftests/vm/run_vmtests.sh
+++ b/tools/testing/selftests/vm/run_vmtests.sh
@@ -121,12 +121,17 @@ run_test ./gup_test -a
 run_test ./gup_test -ct -F 0x1 0 19 0x1000
 
 run_test ./userfaultfd anon 20 16
+run_test ./userfaultfd anon:dev 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:dev "$half_ufd_size_MB" 32
 run_test ./userfaultfd hugetlb_shared "$half_ufd_size_MB" 32 "$mnt"/uffd-test
 rm -f "$mnt"/uffd-test
+run_test ./userfaultfd hugetlb_shared:dev "$half_ufd_size_MB" 32 "$mnt"/uffd-test
+rm -f "$mnt"/uffd-test
 run_test ./userfaultfd shmem 20 16
+run_test ./userfaultfd shmem:dev 20 16
 
 #cleanup
 umount "$mnt"
-- 
2.37.0.170.g444d1eabd0-goog