From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 65B24358372; Sat, 18 Apr 2026 10:57:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776509853; cv=none; b=tQxafMeR0s9AB7XLqlEv6HIU8Utois8GlvZHzS8Y7AeFNdl1bRBWb6Iqgxe3UjItdlcqcVf6VtcliOCWhILK/HDUZ3uV3nQi5/Ap0Q9xVaOD9c0hn5C/Gbe9l9P/AllhLr6eiIjxlsCyDljbzSVAB/VA3CZaGgbM3GZqcXufOqE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776509853; c=relaxed/simple; bh=W/Hu2qsaXpGRyFf0ATC603oNW1zzsqQgst2Eeo+Nd7k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=kqzycm2eK4294ncY50VP1GWrF8PkC52LPEjI3VnWyhuHIsIFO0kW3TLjWXuXqZBFEJBoP88SnJeVdlDwKT/qs6sJox7Ia9kuOZG6dCFnk2W+SQgJYYIZ+Xo14hPbeSAKBfBRP6Yg7McWidWVYBkNTUsHrZD6RLg+kAHxKDHDdQU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Y0ScbXni; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Y0ScbXni" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7594BC19424; Sat, 18 Apr 2026 10:57:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776509853; bh=W/Hu2qsaXpGRyFf0ATC603oNW1zzsqQgst2Eeo+Nd7k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y0ScbXniyzsFNYebjVotCaILdgbqhAIGBzp2R8i3jCLxPnDtOGD21cCfA9tBWs0GR +jIRXy/Qdfxxc1K9bUCKDr6Qgxf7gDOUwc6xMe7HDr7sTPCm2e3Xoax3Dm9+dfO7Ve hq9UyfQQiRBT8KfQY7CxdcAzVi9g4NfUqFPceACf7+9slxElQgo1vfQS5YG6jpOt54 3/YjL80/kSxq/JR9UQJT5O2fstFBK8rXrQz+kolQ/4WxUX4czwr+Dx+lYBhzMXTH85 sK41rg9yavX3dEb0lrTFHntVriZBvO2vej7DA93Fia6wJSvO66To4zvR7h+mUGUNCK vmxhDQfbJwCyw== From: Mike Rapoport To: Andrew Morton , David Hildenbrand Cc: Baolin Wang , Barry Song , Dev Jain , Donet Tom , Jason Gunthorpe , John Hubbard , "Liam R. Howlett" , Lance Yang , Leon Romanovsky , Lorenzo Stoakes , Mark Brown , Michal Hocko , Mike Rapoport , Nico Pache , Peter Xu , Ryan Roberts , Sarthak Sharma , Shuah Khan , Suren Baghdasaryan , Vlastimil Babka , Zi Yan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v2 17/53] selftests/mm: uffd-stress: use kselftest framework Date: Sat, 18 Apr 2026 13:55:02 +0300 Message-ID: <20260418105539.1261536-18-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260418105539.1261536-1-rppt@kernel.org> References: <20260418105539.1261536-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: "Mike Rapoport (Microsoft)" Convert uffd-stress test to use kselftest framework for reporting and tracking successful and failing runs. Signed-off-by: Mike Rapoport (Microsoft) --- tools/testing/selftests/mm/uffd-stress.c | 41 +++++++++++------------- 1 file changed, 19 insertions(+), 22 deletions(-) diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c index 700fbaa18d44..e92a85463eb1 100644 --- a/tools/testing/selftests/mm/uffd-stress.c +++ b/tools/testing/selftests/mm/uffd-stress.c @@ -286,19 +286,12 @@ static int userfaultfd_stress(uffd_global_test_opts_t *gopts) pthread_attr_setstacksize(&attr, 16*1024*1024); while (bounces--) { - printf("bounces: %d, mode:", bounces); - if (bounces & BOUNCE_RANDOM) - printf(" rnd"); - if (bounces & BOUNCE_RACINGFAULTS) - printf(" racing"); - if (bounces & BOUNCE_VERIFY) - printf(" ver"); - if (bounces & BOUNCE_POLL) - printf(" poll"); - else - printf(" read"); - printf(", "); - fflush(stdout); + ksft_print_msg("bounces: %d, mode:%s%s%s%s, ", + bounces, + bounces & BOUNCE_RANDOM ? " rnd" : "", + bounces & BOUNCE_RACINGFAULTS ? " racing" : "", + bounces & BOUNCE_VERIFY ? " ver" : "", + bounces & BOUNCE_POLL ? " poll" : " read"); if (bounces & BOUNCE_POLL) fcntl(gopts->uffd, F_SETFL, gopts->uffd_flags | O_NONBLOCK); @@ -456,6 +449,9 @@ int main(int argc, char **argv) unsigned long nr_cpus; size_t bytes; + ksft_print_header(); + ksft_set_plan(1); + gopts = (uffd_global_test_opts_t *) malloc(sizeof(uffd_global_test_opts_t)); if (argc < 4) @@ -484,10 +480,8 @@ int main(int argc, char **argv) * for racy extra reservation of hugepages. */ if (gopts->test_type == TEST_HUGETLB && - get_free_hugepages() < 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1) { - printf("skip: Skipping userfaultfd... not enough hugepages\n"); - return KSFT_SKIP; - } + get_free_hugepages() < 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1) + ksft_exit_skip("Skipping userfaultfd... not enough hugepages\n"); gopts->nr_pages_per_cpu = bytes / gopts->page_size / gopts->nr_parallel; if (!gopts->nr_pages_per_cpu) { @@ -503,9 +497,12 @@ int main(int argc, char **argv) } gopts->nr_pages = gopts->nr_pages_per_cpu * gopts->nr_parallel; - printf("nr_pages: %lu, nr_pages_per_cpu: %lu\n", - gopts->nr_pages, gopts->nr_pages_per_cpu); - return userfaultfd_stress(gopts); + ksft_print_msg("nr_pages: %lu, nr_pages_per_cpu: %lu\n", + gopts->nr_pages, gopts->nr_pages_per_cpu); + + ksft_test_result(!userfaultfd_stress(gopts), + "uffd-stress %s\n", argv[1]); + ksft_finished(); } #else /* __NR_userfaultfd */ @@ -514,8 +511,8 @@ int main(int argc, char **argv) int main(void) { - printf("skip: Skipping userfaultfd test (missing __NR_userfaultfd)\n"); - return KSFT_SKIP; + ksft_print_header(); + ksft_exit_skip("missing __NR_userfaultfd definition\n"); } #endif /* __NR_userfaultfd */ -- 2.53.0