From nobody Sat Feb 7 06:21:21 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 24A3C209F59; Mon, 2 Dec 2024 11:14:54 +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=1733138095; cv=none; b=E/NQIrjZw7VDj5V+HuTdRSCatPcZwnSjtvQmf01LL4wxW7qprXM4J77GZkjUqqQbBCCImr0PDGTJ21SG0nyvoHeie0qj/fDn92XY291vrfojdhMDpg7TgU8OF48fRS3Sj8fyz6UALwKEt21WRFbHiTkErXCYfECauLAKVfHEYLo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733138095; c=relaxed/simple; bh=V62em5H/34Oo3SVQBtNzc5AU4WFh+wT/ZGeUsM1Tyi8=; h=Date:From:To:Subject:Cc:In-Reply-To:References:MIME-Version: Message-ID:Content-Type; b=G5u5RKZFeKcfHFEc68xtlvSWS06g7J6iBJU7SVbnNdt7qRVM3paY+rIkmDKhiim9Wk1G6j8tcX8PJXzG0cQc4UzMPgSNrN0iUCgS9/IJzOnpcescIB/JIcKD7apdKj4qkAPEuClsYV2/tLtiBceJLQ8Wczw0Kezs8zA5EQO5ork= 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=d/NE3xh4; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=L61ekjXh; 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="d/NE3xh4"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="L61ekjXh" Date: Mon, 02 Dec 2024 11:14:51 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1733138092; 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=Cl/Wn6QrssvrdyHG8pwYU3rq9vhIyV6DTCxQrLsB2nI=; b=d/NE3xh4dXm+0I87rJCKIbG/4sTAtFcVpjUR3+dz1N2N6dqbie7y4mgA/S/CSvQEJs98+q Nydh06LwDjE2IWn0ttxn+bWWtta3W7BkZ7YlTknAKUqht+3qx437Yig+IhaJFcNn8d32Ls JQO/V8f9HOP02kdZsm2dXpdYvHEMeKvvfjLJBOk/ph94/EzqxRhBKF2iL9BnDwoG9DxutN W3+sYoh2JxbD5514oDx/EEy5V+NVMnP9/DmHCxatGn/Gn9rsOtIzWdP6cMyN69as2d4N/e GZ1qit8HOtW2d1BrA0+7IuAUASp3Cn04mLl7ty06bwrSpbv8gKvXXCfDbJDlyw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1733138092; 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=Cl/Wn6QrssvrdyHG8pwYU3rq9vhIyV6DTCxQrLsB2nI=; b=L61ekjXhsm6JiU/kwWj2G44c3SVrXkzEg7xK8U1PUkWM4Gf5CPqiGBdw10VEttrrsBKIPp IM9bQCzoXBu4xdAQ== From: "tip-bot2 for Juri Lelli" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] sched/deadline: Fix replenish_dl_new_period dl_server condition Cc: Juri Lelli , "Peter Zijlstra (Intel)" , stable@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20241127063740.8278-1-juri.lelli@redhat.com> References: <20241127063740.8278-1-juri.lelli@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <173313809175.412.2278722733257226756.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 sched/core branch of tip: Commit-ID: 22368fe1f9bbf39db2b5b52859589883273e80ce Gitweb: https://git.kernel.org/tip/22368fe1f9bbf39db2b5b528595898832= 73e80ce Author: Juri Lelli AuthorDate: Wed, 27 Nov 2024 07:37:40 +01:00 Committer: Peter Zijlstra CommitterDate: Mon, 02 Dec 2024 12:01:27 +01:00 sched/deadline: Fix replenish_dl_new_period dl_server condition The condition in replenish_dl_new_period() that checks if a reservation (dl_server) is deferred and is not handling a starvation case is obviously wrong. Fix it. Fixes: a110a81c52a9 ("sched/deadline: Deferrable dl server") Signed-off-by: Juri Lelli Signed-off-by: Peter Zijlstra (Intel) Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20241127063740.8278-1-juri.lelli@redhat.com --- kernel/sched/deadline.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index d9d5a70..206691d 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -781,7 +781,7 @@ static inline void replenish_dl_new_period(struct sched= _dl_entity *dl_se, * If it is a deferred reservation, and the server * is not handling an starvation case, defer it. */ - if (dl_se->dl_defer & !dl_se->dl_defer_running) { + if (dl_se->dl_defer && !dl_se->dl_defer_running) { dl_se->dl_throttled =3D 1; dl_se->dl_defer_armed =3D 1; }