From nobody Wed Apr 1 21:00:03 2026 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 DA88032B9A2; Wed, 1 Apr 2026 15:16:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775056582; cv=none; b=KE4Pa6qDJdGoKbNWyISY8feq0ZqIPSORCKjIMaOBS5qIxkRbtin57PKK4+eu0RfHYm3ZKRuHHUGIwb9Th5M4UEl+vj/viMOPGLfTnrQovF4yZEi6QXvQEgM9m2nWSYnEit7O0RQ29olLVvRTIDsgAZm3JuMHx43/6GYDpgHLPXk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775056582; c=relaxed/simple; bh=jJkUO4BWgzzd9KDVF2ICnbPB5DVqDBAOlh9cXzX1UhU=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=HtQu8feNdA50NKImONodVFSm6BbRxcpKlGWlY9JojzJXvSPkZrJI2BYjs2KPgHg+eIW1bnspYRBuCRXhXYpvFLT7eDrCylJ2+CODC+YyLJDk1+N7ylCAhRe4yD9DmjGJvq0WlfIqvfBoU1Bu5OLYi68Zx7MInCJ9PT6VuqAqkh0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=FdLZ6q0g; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=1u3FcNy4; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="FdLZ6q0g"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="1u3FcNy4" Date: Wed, 01 Apr 2026 15:16:17 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1775056579; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IfuBsPleZcs6aDcgZ5rrMVYhPXLbQHdN+vnIpyt7D/Y=; b=FdLZ6q0gtZuvGNQZewrF7kHEKMNPv1UcfvQLXBnTrA9Hlqzm/bTdvFSBu9elpp9jkpOxNJ XnVZuikuRbovWFcetAt5szSl6vecRY0gGJoC8lJ9vtX2ScgNQlzE+iDe+gt78cLop1GI9f fDMg6AkwKoIZOjhdvE00sWxeeRFg7tYMDRSZT00wFA8vkpJH8dD2dTJJ7Qsf9nwxT7XmkL i56mG1GEFL9fwMlB4Uit3OGxDqhJzQ2Y4jaS78JpmAGDFEIN/Q5iQOwnHb26xRguNO8VCw 5mZLse77gyXFi1Yyf6IxXN/m3HZ4MVHmGpeXgmENpjZ6eWfko/4ErtvYg3i5wA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1775056579; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IfuBsPleZcs6aDcgZ5rrMVYhPXLbQHdN+vnIpyt7D/Y=; b=1u3FcNy4rNK3rXhi++gB+82hovznFfmKTRnFCrfSVyNJPv8B8kg2FflVePXICx+pX4so98 c3A1gx8baq9WQjBA== From: tip-bot2 for Thomas =?utf-8?q?Wei=C3=9Fschuh?= Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: timers/vdso] timens: Use task_lock guard in timens_get*() Cc: thomas.weissschuh@linutronix.de, Thomas Gleixner , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20260330-timens-cleanup-v1-4-936e91c9dd30@linutronix.de> References: <20260330-timens-cleanup-v1-4-936e91c9dd30@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <177505657781.1647592.18275092382588885659.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Precedence: bulk Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable The following commit has been merged into the timers/vdso branch of tip: Commit-ID: 7138a8698a39e81eb153e05500823fff76d5b3bd Gitweb: https://git.kernel.org/tip/7138a8698a39e81eb153e05500823fff7= 6d5b3bd Author: Thomas Wei=C3=9Fschuh AuthorDate: Mon, 30 Mar 2026 09:07:58 +02:00 Committer: Thomas Gleixner CommitterDate: Wed, 01 Apr 2026 17:13:36 +02:00 timens: Use task_lock guard in timens_get*() Simplify the logic in timens_get*() by converting the task_lock usage to a guard(). Signed-off-by: Thomas Wei=C3=9Fschuh Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20260330-timens-cleanup-v1-4-936e91c9dd30@li= nutronix.de --- kernel/time/namespace.c | 30 ++++++++++++++---------------- 1 file changed, 14 insertions(+), 16 deletions(-) diff --git a/kernel/time/namespace.c b/kernel/time/namespace.c index 084ceec..4bca3f7 100644 --- a/kernel/time/namespace.c +++ b/kernel/time/namespace.c @@ -154,34 +154,32 @@ void free_time_ns(struct time_namespace *ns) =20 static struct ns_common *timens_get(struct task_struct *task) { - struct time_namespace *ns =3D NULL; + struct time_namespace *ns; struct nsproxy *nsproxy; =20 - task_lock(task); + guard(task_lock)(task); nsproxy =3D task->nsproxy; - if (nsproxy) { - ns =3D nsproxy->time_ns; - get_time_ns(ns); - } - task_unlock(task); + if (!nsproxy) + return NULL; =20 - return ns ? &ns->ns : NULL; + ns =3D nsproxy->time_ns; + get_time_ns(ns); + return &ns->ns; } =20 static struct ns_common *timens_for_children_get(struct task_struct *task) { - struct time_namespace *ns =3D NULL; + struct time_namespace *ns; struct nsproxy *nsproxy; =20 - task_lock(task); + guard(task_lock)(task); nsproxy =3D task->nsproxy; - if (nsproxy) { - ns =3D nsproxy->time_ns_for_children; - get_time_ns(ns); - } - task_unlock(task); + if (!nsproxy) + return NULL; =20 - return ns ? &ns->ns : NULL; + ns =3D nsproxy->time_ns_for_children; + get_time_ns(ns); + return &ns->ns; } =20 static void timens_put(struct ns_common *ns)