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 2D080331218; Tue, 28 Apr 2026 20:44:49 +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=1777409090; cv=none; b=QJKn8FF1SOaaLb+Lu3dwyrqXwV45yw75SdW/Ty6WBaWAeeBGiwYRK86/ogt2CWRE6t5jvXuz6p5USVXMi6rtJChtKOKJhskToIJ2M93KYtF/+MycRHjad5SIsyyk2YGAqWNXRwKWmW5leWugv+5Y5AiV8asMb7aDZuIOJEydvIE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777409090; c=relaxed/simple; bh=7qKHzCadzgEQAQzNVqCf6fre80BxdReFv76mDf7/IKw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fCUF109OUMBtENu6MiX/egAP1UnnoZN//I56Fs3q1TcQgkS+jDYVGxA/ZziOCSqEMRP2RWiMRh2/a0trfT0iFWLkT+St1/cLLRfZE1JxYcAPGQX5SC2J5acsHQvMuc8bTj+guKDWVXh0rTPYYL/K5nabNQ6RYYhU+sRd56EkEY8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=EXmOL9ou; 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="EXmOL9ou" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B2EFBC2BCB3; Tue, 28 Apr 2026 20:44:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777409089; bh=7qKHzCadzgEQAQzNVqCf6fre80BxdReFv76mDf7/IKw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EXmOL9ou5pb28Qr8PTiAefwZfwy88snUIzJS8rYsQHY0Zl+Z0b3Jh5GOP8TO2lVSV pEvW97yjRJoPizvGmLDImbmW4ewcXa8F33xnWt7pyp5cuXmKanuTgK9L/Wd+5jq5Ju TiA4/T9qHWfLhPNQCjNb0gNwENQ1ftUsC91Ky9NonciIwfyoHgSjQbcWvTjmqVRgZJ k6FYkUKxvk0QQUUzA1yQmggAkvy3ty2U1sVv9Q2p0CT2BuyQzwr91/41QjC3lbMnXA Lnxv5JQhLdeXJZk7DABLvQ1y0vpjuXSWAK/NAE7w+sa9D5FRdGm8XmCY5u9MCRE9iH U6NlWwOIJ4PEA== 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 , Luiz Capitulino , 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 v3 18/54] selftests/mm: uffd-stress: use kselftest framework Date: Tue, 28 Apr 2026 23:42:04 +0300 Message-ID: <20260428204240.1924129-19-rppt@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260428204240.1924129-1-rppt@kernel.org> References: <20260428204240.1924129-1-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. Reviewed-by: Mark Brown 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