From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11847C76186 for ; Mon, 29 Jul 2019 22:00:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CBB11216C8 for ; Mon, 29 Jul 2019 22:00:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=arista.com header.i=@arista.com header.b="D9j6Ff4c" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730682AbfG2WA1 (ORCPT ); Mon, 29 Jul 2019 18:00:27 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:36744 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389304AbfG2V6v (ORCPT ); Mon, 29 Jul 2019 17:58:51 -0400 Received: by mail-wm1-f65.google.com with SMTP id g67so50692591wme.1 for ; Mon, 29 Jul 2019 14:58:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=arista.com; s=googlenew; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wEfCJbdMxKYDawKCbJAyWHD0Eo3/cUETUwVUhZGJGmo=; b=D9j6Ff4c4rkh9VHKRQgUk1IM7k5ysbrhF/oCKiEguJMTZYxxjjmHxqh8lVDxVfRYmF ThQ0mJxr4gKdu9+twJsQKUH6rmFlLkMG1EzFQ/WXP+MuDteoDAX0oFUopwYt1vHQQqtZ QJm1246g0Lx/dx7NocTNWaJkqFogD0ydj6DbdnuRI3gfpHBSiAImJ/BWePgDjvFTYrN3 Sjq57AwaYyoDE44qB2H9+SgqPjy7hbZLMAjPGfzPH5NTdb+8OjREwt63d0UBLzRm3vDA aKMq3EFlZKdK70EFrks//C1vLVvBmEN3BPaMJbx4o0Lfo5TTspMFDUJzPFYakzTHyBC8 UlVw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wEfCJbdMxKYDawKCbJAyWHD0Eo3/cUETUwVUhZGJGmo=; b=WJpWRqmSpgGHyvb5CYncDRbcaorYd0OqGNGrODGP6bAqTNQWZRCIpnrf/ze+j8QFAB zu3Mh9GAuLRXEOgbONd9E8SG4CTBfeNjUhoWbwv65jzc5iqscFFcFSDIrETl/N6Rxj0n fleHp4R17seD0FwbAaumlnuX5+U/QVBWGM7SxxZkRHIFDqJqjLNv+lW2nEoHzMGdh954 ZIW6tAYwmbax2MaaA/KtMHAMaHUXCOQvcrPhBi7f9w4xTBZaFn8SON5EFjVoC5ZT+o6W QmJjznEOUzhUJS1pGGLf+eSAHAdYjKJBApJxwI6UFmHRlrW9jtM/hlOi+0h19K/dFv/h UnNA== X-Gm-Message-State: APjAAAUec2SLEeoMbQILbciSC1lGI51ey625q0kIgwqsKNgY6M9tieZF kaQrrFVFhN+Re5tn+EnUH3+ONwULQyu1GBbBTjQXnz+ULZHMOiZR/3dNIMql+HScjE+E6BIvmrd s/JME5EHUNLTTkKCF05O1nv3I5VOgvbwfkcJlXqmGouZp+2aigd3WkkIFx7rIjSffZSn/FOP5dT f6K1idvj6kBW4Lm89odIHQu1GmEPFf+mvbsf24dZ0= X-Google-Smtp-Source: APXvYqxDvQUc4PsZBAOd6KsnV3TljNwim5nmPju6v5/sLVVEJm4F68CmLxGjQT1h5gViuvQY2L3Rtg== X-Received: by 2002:a1c:6643:: with SMTP id a64mr104032922wmc.154.1564437528991; Mon, 29 Jul 2019 14:58:48 -0700 (PDT) Received: from Mindolluin.ire.aristanetworks.com ([217.173.96.166]) by smtp.gmail.com with ESMTPSA id x20sm49230728wmc.1.2019.07.29.14.58.47 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 29 Jul 2019 14:58:48 -0700 (PDT) From: Dmitry Safonov To: linux-kernel@vger.kernel.org Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Andrei Vagin , Dmitry Safonov , Adrian Reber , Andy Lutomirski , Arnd Bergmann , Christian Brauner , Cyrill Gorcunov , "Eric W. Biederman" , "H. Peter Anvin" , Ingo Molnar , Jann Horn , Jeff Dike , Oleg Nesterov , Pavel Emelyanov , Shuah Khan , Thomas Gleixner , Vincenzo Frascino , containers@lists.linux-foundation.org, criu@openvz.org, linux-api@vger.kernel.org, x86@kernel.org, Andrei Vagin Subject: [PATCHv5 35/37] selftest/timens: Add timer offsets test Date: Mon, 29 Jul 2019 22:57:17 +0100 Message-Id: <20190729215758.28405-36-dima@arista.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190729215758.28405-1-dima@arista.com> References: <20190729215758.28405-1-dima@arista.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CLOUD-SEC-AV-Info: arista,google_mail,monitor X-CLOUD-SEC-AV-Sent: true X-Gm-Spam: 0 X-Gm-Phishy: 0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrei Vagin Check that timer_create() takes into account clock offsets. Signed-off-by: Andrei Vagin Co-developed-by: Dmitry Safonov Signed-off-by: Dmitry Safonov --- tools/testing/selftests/timens/.gitignore | 1 + tools/testing/selftests/timens/Makefile | 3 +- tools/testing/selftests/timens/timer.c | 118 ++++++++++++++++++++++ 3 files changed, 121 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/timens/timer.c diff --git a/tools/testing/selftests/timens/.gitignore b/tools/testing/selftests/timens/.gitignore index 94ffdd9cead7..3b7eda8f35ce 100644 --- a/tools/testing/selftests/timens/.gitignore +++ b/tools/testing/selftests/timens/.gitignore @@ -1,4 +1,5 @@ clock_nanosleep procfs timens +timer timerfd diff --git a/tools/testing/selftests/timens/Makefile b/tools/testing/selftests/timens/Makefile index f96f50d1fef8..ae1ffd24cc43 100644 --- a/tools/testing/selftests/timens/Makefile +++ b/tools/testing/selftests/timens/Makefile @@ -1,5 +1,6 @@ -TEST_GEN_PROGS := timens timerfd clock_nanosleep procfs +TEST_GEN_PROGS := timens timerfd timer clock_nanosleep procfs CFLAGS := -Wall -Werror +LDFLAGS := -lrt include ../lib.mk diff --git a/tools/testing/selftests/timens/timer.c b/tools/testing/selftests/timens/timer.c new file mode 100644 index 000000000000..45a9dd3cbb12 --- /dev/null +++ b/tools/testing/selftests/timens/timer.c @@ -0,0 +1,118 @@ +// SPDX-License-Identifier: GPL-2.0 +#define _GNU_SOURCE +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "log.h" +#include "timens.h" + +int run_test(int clockid, struct timespec now) +{ + struct itimerspec new_value; + long long elapsed; + timer_t fd; + int i; + + for (i = 0; i < 2; i++) { + struct sigevent sevp = {.sigev_notify = SIGEV_NONE}; + int flags = 0; + + new_value.it_value.tv_sec = 3600; + new_value.it_value.tv_nsec = 0; + new_value.it_interval.tv_sec = 1; + new_value.it_interval.tv_nsec = 0; + + if (i == 1) { + new_value.it_value.tv_sec += now.tv_sec; + new_value.it_value.tv_nsec += now.tv_nsec; + } + + if (timer_create(clockid, &sevp, &fd) == -1) + return pr_perror("timerfd_create"); + + if (i == 1) + flags |= TIMER_ABSTIME; + if (timer_settime(fd, flags, &new_value, NULL) == -1) + return pr_perror("timerfd_settime"); + + if (timer_gettime(fd, &new_value) == -1) + return pr_perror("timerfd_gettime"); + + elapsed = new_value.it_value.tv_sec; + if (abs(elapsed - 3600) > 60) { + ksft_test_result_fail("clockid: %d elapsed: %lld\n", + clockid, elapsed); + return 1; + } + } + + ksft_test_result_pass("clockid=%d\n", clockid); + + return 0; +} + +int main(int argc, char *argv[]) +{ + int ret, status, len, fd; + char buf[4096]; + pid_t pid; + struct timespec btime_now, mtime_now; + + nscheck(); + + ksft_set_plan(3); + + clock_gettime(CLOCK_MONOTONIC, &mtime_now); + clock_gettime(CLOCK_BOOTTIME, &btime_now); + + if (unshare(CLONE_NEWTIME)) + return pr_perror("unshare"); + + len = snprintf(buf, sizeof(buf), "%d %d 0\n%d %d 0", + CLOCK_MONOTONIC, 70 * 24 * 3600, + CLOCK_BOOTTIME, 9 * 24 * 3600); + fd = open("/proc/self/timens_offsets", O_WRONLY); + if (fd < 0) + return pr_perror("/proc/self/timens_offsets"); + + if (write(fd, buf, len) != len) + return pr_perror("/proc/self/timens_offsets"); + + close(fd); + mtime_now.tv_sec += 70 * 24 * 3600; + btime_now.tv_sec += 9 * 24 * 3600; + + pid = fork(); + if (pid < 0) + return pr_perror("Unable to fork"); + if (pid == 0) { + ret = 0; + ret |= run_test(CLOCK_BOOTTIME, btime_now); + ret |= run_test(CLOCK_MONOTONIC, mtime_now); + ret |= run_test(CLOCK_BOOTTIME_ALARM, btime_now); + + if (ret) + ksft_exit_fail(); + ksft_exit_pass(); + return ret; + } + + if (waitpid(pid, &status, 0) != pid) + return pr_perror("Unable to wait the child process"); + + if (WIFEXITED(status)) + return WEXITSTATUS(status); + + return 1; +} + -- 2.22.0