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 E2202C43331 for ; Tue, 12 Nov 2019 01:29:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B39B82184C for ; Tue, 12 Nov 2019 01:29:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=arista.com header.i=@arista.com header.b="no7ak0lp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727411AbfKLB2F (ORCPT ); Mon, 11 Nov 2019 20:28:05 -0500 Received: from mail-wr1-f68.google.com ([209.85.221.68]:39826 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727298AbfKLB1y (ORCPT ); Mon, 11 Nov 2019 20:27:54 -0500 Received: by mail-wr1-f68.google.com with SMTP id l7so5100326wrp.6 for ; Mon, 11 Nov 2019 17:27:52 -0800 (PST) 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=1znNAGw/Z1q6zMts4RvOzjAIKcNOTR5cC9VZjL6t0T4=; b=no7ak0lp9bxnBWXhC4+Tx+Ld3kfGjWGcwqMxHG6k1Jesn3stq1RTFYQvubLhKR8H4P M9YDX9NrHZhKHxHF1s2VvzBK5lBOzfFycGG7oxUSFBJXYHfxyV+76234bOF16UmArQEM GYENaeByzCN5GCGPTvEISHJgxSpMgeA8mpVALKx6yDLmfILABsljASkq0qXrVazyHDW/ Wg5tmh51mW9+xE3rV6a/8f4QVhrQObsWvsmgnUi1CXQOlF3t3WvSSJQU/SUtyAEjfnLU yCVCVBUq4QPtwdF5vl8XANMH/2WyZG9X1r/doDnXU5Iv006YwcXzRa9JOWihNlRCwOTK iGLg== 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=1znNAGw/Z1q6zMts4RvOzjAIKcNOTR5cC9VZjL6t0T4=; b=K4JgxyrCUgSmoXhlPy28RuBiMMxhvKy4rqQaAIEqNL5BstG8C/Un7ZSYBN9orqea1L k84m8Rffn186nqOzcccDmwi8JfgNnLRz6y8VVMTpsDdZmja0rhoD5KSnYZglBlMiq88W LMWhHKyjh7yM3ZWKve7tvlzGFQ4WXelwJ0tD8IzujmYfcpCpo3l3PvyKbVV1rbZZYNOT PRhrjPO4s5P0a9IUsrg4MP3/1yLsGzUSepyX53opRGhmPDHFCol9jGt5KbmsYpTqFdXH zmi37pFI02iRBS4n+//ixPi1tU1vldIFuo30eumZrcttCusNzh1l5m7OugYySYL6e6BN Snkg== X-Gm-Message-State: APjAAAXGqRlppKsh5g4VG5syLdFr0AArnK1RYD+XaqYxBufucQ3DA1aG 7Xy5QOIfF8pRmUZDEfy4TBwZAnyfUAA= X-Google-Smtp-Source: APXvYqw1sQ5638emNp4oXahicRk566L49rP3h7hLu+1ZakVzvyAqS3EF8A2tV4rgYhA06BYSYjrp7w== X-Received: by 2002:adf:fe0e:: with SMTP id n14mr24275641wrr.72.1573522071918; Mon, 11 Nov 2019 17:27:51 -0800 (PST) Received: from Mindolluin.ire.aristanetworks.com ([217.173.96.166]) by smtp.gmail.com with ESMTPSA id u187sm1508096wme.15.2019.11.11.17.27.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 Nov 2019 17:27:51 -0800 (PST) From: Dmitry Safonov To: linux-kernel@vger.kernel.org Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Andrei Vagin , Dmitry Safonov , Adrian Reber , Andrei Vagin , 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 Subject: [PATCHv8 15/34] alarmtimer: Make nanosleep time namespace aware Date: Tue, 12 Nov 2019 01:27:04 +0000 Message-Id: <20191112012724.250792-16-dima@arista.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191112012724.250792-1-dima@arista.com> References: <20191112012724.250792-1-dima@arista.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Andrei Vagin clock_nanosleep() accepts absolute values of expiration time when TIMER_ABSTIME flag is set. This absolute value is inside the task's time namespace, and has to be converted to the host's time. Signed-off-by: Andrei Vagin Co-developed-by: Dmitry Safonov Signed-off-by: Dmitry Safonov --- kernel/time/alarmtimer.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 9a8e81bc4ec2..b51b36e533c4 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -839,6 +839,8 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags, ktime_t now = alarm_bases[type].get_ktime(); exp = ktime_add_safe(now, exp); + } else { + exp = timens_ktime_to_host(which_clock, exp); } ret = alarmtimer_do_nsleep(&alarm, exp, type); -- 2.24.0 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Safonov Subject: [PATCHv8 15/34] alarmtimer: Make nanosleep time namespace aware Date: Tue, 12 Nov 2019 01:27:04 +0000 Message-ID: <20191112012724.250792-16-dima@arista.com> References: <20191112012724.250792-1-dima@arista.com> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20191112012724.250792-1-dima@arista.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: Dmitry Safonov <0x7f454c46@gmail.com>, Andrei Vagin , Dmitry Safonov , Adrian Reber , Andrei Vagin , 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 List-Id: linux-api@vger.kernel.org From: Andrei Vagin clock_nanosleep() accepts absolute values of expiration time when TIMER_ABSTIME flag is set. This absolute value is inside the task's time namespace, and has to be converted to the host's time. Signed-off-by: Andrei Vagin Co-developed-by: Dmitry Safonov Signed-off-by: Dmitry Safonov --- kernel/time/alarmtimer.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 9a8e81bc4ec2..b51b36e533c4 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -839,6 +839,8 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags, ktime_t now = alarm_bases[type].get_ktime(); exp = ktime_add_safe(now, exp); + } else { + exp = timens_ktime_to_host(which_clock, exp); } ret = alarmtimer_do_nsleep(&alarm, exp, type); -- 2.24.0