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[2620:137:e000::1:20]) by mx.google.com with ESMTP id q80-20020a632a53000000b00518664086b1si1087467pgq.861.2023.04.25.12.14.27; Tue, 25 Apr 2023 12:14:41 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linutronix.de header.s=2020 header.b=uniI75pn; dkim=neutral (no key) header.i=@linutronix.de; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=linutronix.de Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234583AbjDYSuE (ORCPT + 99 others); Tue, 25 Apr 2023 14:50:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234880AbjDYStq (ORCPT ); Tue, 25 Apr 2023 14:49:46 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C45E817A26 for ; Tue, 25 Apr 2023 11:49:19 -0700 (PDT) Message-ID: <20230425183313.567072835@linutronix.de> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1682448558; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=8NduAiJ2J+swWwUoiKJ97uYPpuB6SXNqBekstp0ggR4=; b=uniI75pnAS9TOvDGmGZVsKmTpGEdI0zkV8W39Bh9j4CS6jwK7SePZXC0PFEhjigIof0tKR hfUjXedgBzFvaYT/1oJge5OzjdmM1FTqMM56fPHeH64X2wTtR4RgmynD4DY8WQtey20Za7 toQNRYI0cs7wosSn87CVNDBJaPbWb6J8MP1dtGYqj6nQN0tP8sxJYDNRk5k9UFrf305LUH gX1251nDmA9zYB9WrCDGvA9NIU/NIv/oF5ky1Wm4jh6okYMsgdhmhh0X2ZSvHgESiYIcjS 37NjCmKupda66UurjPkqe8iOlzjq6oaa6zJFjTC+77VXXL3i+IZpnafbWgBxtQ== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1682448558; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: references:references; bh=8NduAiJ2J+swWwUoiKJ97uYPpuB6SXNqBekstp0ggR4=; b=tHHXQwEvpOzhjSgJCn9tEFVsh2raSSAt1VXbS50b9x8XaRNKQzbrJB5uamjTTG9WIy6dWh Nmr5sCpuU8+bHlCA== From: Thomas Gleixner To: LKML Cc: Frederic Weisbecker , Anna-Maria Behnsen , Peter Zijlstra , Sebastian Siewior , syzbot+5c54bd3eb218bb595aa9@syzkaller.appspotmail.com, Dmitry Vyukov , Michael Kerrisk Subject: [patch 14/20] posix-timers: Document nanosleep() details References: <20230425181827.219128101@linutronix.de> MIME-Version: 1.0 Date: Tue, 25 Apr 2023 20:49:17 +0200 (CEST) X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1764176777347475594?= X-GMAIL-MSGID: =?utf-8?q?1764176777347475594?= The descriptions for common_nsleep() is wrong and common_nsleep_timens() lacks any form of comment. Signed-off-by: Thomas Gleixner Reviewed-by: Frederic Weisbecker --- kernel/time/posix-timers.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1376,7 +1376,7 @@ SYSCALL_DEFINE2(clock_getres_time32, clo #endif /* - * nanosleep for monotonic and realtime clocks + * sys_clock_nanosleep() for CLOCK_REALTIME and CLOCK_TAI */ static int common_nsleep(const clockid_t which_clock, int flags, const struct timespec64 *rqtp) @@ -1388,8 +1388,13 @@ static int common_nsleep(const clockid_t which_clock); } +/* + * sys_clock_nanosleep() for CLOCK_MONOTONIC and CLOCK_BOOTTIME + * + * Absolute nanosleeps for these clocks are time-namespace adjusted. + */ static int common_nsleep_timens(const clockid_t which_clock, int flags, - const struct timespec64 *rqtp) + const struct timespec64 *rqtp) { ktime_t texp = timespec64_to_ktime(*rqtp);