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=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS 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 93C79C33CB1 for ; Tue, 14 Jan 2020 13:04:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 74E212467C for ; Tue, 14 Jan 2020 13:04:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729433AbgANND7 (ORCPT ); Tue, 14 Jan 2020 08:03:59 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:43205 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728916AbgANNCd (ORCPT ); Tue, 14 Jan 2020 08:02:33 -0500 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1irLq1-0004iB-UB; Tue, 14 Jan 2020 14:02:30 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id 841E31C0823; Tue, 14 Jan 2020 14:02:18 +0100 (CET) Date: Tue, 14 Jan 2020 13:02:18 -0000 From: "tip-bot2 for Andrei Vagin" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: timers/core] timerfd: Make timerfd_settime() time namespace aware Cc: Andrei Vagin , Dmitry Safonov , Thomas Gleixner , x86 , LKML In-Reply-To: <20191112012724.250792-14-dima@arista.com> References: <20191112012724.250792-14-dima@arista.com> MIME-Version: 1.0 Message-ID: <157900693827.396.372162983564210186.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the timers/core branch of tip: Commit-ID: 6cd889d43c40b13f81a44c41896781ce70244769 Gitweb: https://git.kernel.org/tip/6cd889d43c40b13f81a44c41896781ce70244769 Author: Andrei Vagin AuthorDate: Tue, 12 Nov 2019 01:27:02 Committer: Thomas Gleixner CommitterDate: Tue, 14 Jan 2020 12:20:53 +01:00 timerfd: Make timerfd_settime() time namespace aware timerfd_settime() accepts an absolute value of the expiration time if TFD_TIMER_ABSTIME is specified. This value is in the task's time namespace and has to be converted to the host's time namespace. Co-developed-by: Dmitry Safonov Signed-off-by: Andrei Vagin Signed-off-by: Dmitry Safonov Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/20191112012724.250792-14-dima@arista.com --- fs/timerfd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/timerfd.c b/fs/timerfd.c index ac7f59a..c5509d2 100644 --- a/fs/timerfd.c +++ b/fs/timerfd.c @@ -26,6 +26,7 @@ #include #include #include +#include struct timerfd_ctx { union { @@ -196,6 +197,8 @@ static int timerfd_setup(struct timerfd_ctx *ctx, int flags, } if (texp != 0) { + if (flags & TFD_TIMER_ABSTIME) + texp = timens_ktime_to_host(clockid, texp); if (isalarm(ctx)) { if (flags & TFD_TIMER_ABSTIME) alarm_start(&ctx->t.alarm, texp);