From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (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 4877C2DC76A; Fri, 31 Jul 2026 16:50:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.158.5 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785516621; cv=none; b=LIMzNYLY2t1Vs6pzXVML57ns2Ib4S6o+arI1ksQZKYeu7/wH6ZIiwO9buOnVJKNRSkCnoGGAy+m3QQPu5c/I6CIF5WYr8floKavUjD5VkW//4MklxDX/co8lXv7xhH3HVkvBG1kKjc30pYcl3S01rYiaxgTNxyI8b8m9ksyojgE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785516621; c=relaxed/simple; bh=Z97yF8Q1u1qO0m1GpK36D4aBK0XPxOUrAVghs980lbg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=GYCi0Tkerbl7BhPLDgVsbMDnMzMyCR3plPWi9XoCGcYDcUuJ5sykCMQDWfjEISZlKgr1yfLUdDPI+38f/2Fr8ocOR50lgn2HfWYiiTKuhMmO8PQD/+hPxL6gbRcUxpzIE5PQqV2J+kc6mFT1yaAwgufaxrbXUgf2wzmt4gziCdo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=kA2OOXZq; arc=none smtp.client-ip=148.163.158.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="kA2OOXZq" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 66VFlrTs2192683; Fri, 31 Jul 2026 16:50:10 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:message-id:mime-version :subject:to; s=pp1; bh=TkQuuD9IGExAR+KBkwqv143fCtYGlXzTpxflQFPrO Qo=; b=kA2OOXZq/3kzTrJJcewMK2Ry+JKX5ubJ1II7Rgr4Ioi3GA5VPCVq1ImOu YHS8FpbqL8GUdYa+25Q/ztQIeZp7mxy2DK0aBwsQrVSPK1n2D42pdcMLYUDGKJNj ipiMi+jJuZExU1zJgv84XLjoG3VETrJLByKP8CvLdH+UFoffvzZ/JUVkhjyDXncU WqWkp7oQjSTz6zHxt40JFpB484bQAz6N4lWzqvN+LZTx26NJ/9oEu+6TCTHmVnw9 5myZcq96UjLTJC6i0wnBCAuNweeAZhvHbUSl0QMb79FZ1qzlQrrDiwVsTQABSQNN ONqU34g/FphKiSYEnPJIbs1R050Qw== Received: from ppma23.wdc07v.mail.ibm.com (5d.69.3da9.ip4.static.sl-reverse.com [169.61.105.93]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4fmuyjn1y7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 31 Jul 2026 16:50:10 +0000 (GMT) Received: from pps.filterd (ppma23.wdc07v.mail.ibm.com [127.0.0.1]) by ppma23.wdc07v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 66VGfKun002896; Fri, 31 Jul 2026 16:50:09 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma23.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4fn8yhrnbt-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 31 Jul 2026 16:50:09 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (smtpav07.fra02v.mail.ibm.com [10.20.54.106]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 66VGo5cw41419234 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 31 Jul 2026 16:50:05 GMT Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0A9F320040; Fri, 31 Jul 2026 16:50:05 +0000 (GMT) Received: from smtpav07.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CB4F02004B; Fri, 31 Jul 2026 16:50:04 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav07.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 31 Jul 2026 16:50:04 +0000 (GMT) From: Heiko Carstens To: Alexander Gordeev , Sven Schnelle , Vasily Gorbik , Christian Borntraeger , Harald Freudenberger , Holger Dengler , Vineeth Vijayan , Peter Oberparleiter , Janosch Frank , Claudio Imbrenda , David Hildenbrand , Peter Zijlstra , Herbert Xu Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org Subject: [PATCH v4 0/4] s390: Remove or replace cond_resched() calls Date: Fri, 31 Jul 2026 18:50:00 +0200 Message-ID: <20260731165004.2758105-1-hca@linux.ibm.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMxMDEyOCBTYWx0ZWRfX9AT27oST34ca oifnWOlzBXVcELBB4ClGvxlDR/nM2Y46//Maqp8e9a2SY8uNRqA7v4c1UPs4vhjRvDmHsf2VSjX s5WD/D+fBqEcG97F0C0Sh6wrSDRhgI8= X-Proofpoint-GUID: p7y0sIaGKDtF8SoCUC21G9VmDrvNYYV- X-Proofpoint-ORIG-GUID: p7y0sIaGKDtF8SoCUC21G9VmDrvNYYV- X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMxMDEyOCBTYWx0ZWRfX1YMx7NPxOecg REqjq9dR6G8b03Egf5KqMt4Ujr9umEtvXkQ33+BlAUxVRs6in7cdePLVrXT9i2mLc7AV3XMeBLj vq+RNvXHkxw9se2XH/ygTfbZ0Qycvahm+eH7/vLStPQNc8P/Vw6porVo3E/EokjvlycdUMeDuI6 TlzOfT+GJOok0dMDS0hWe/5RRqRFXWsFwfPCnF83jdL+ZBPGtHekdQrFroJ4qOE3yX9gkXsXwb9 BIwiV7WFKBqhF333r6tbwij5MQGI5sQUANh7RDp0O9JPz9RnYmQFCNmqj0v+diRcGg5xDGXt+sk PrNhGCSSPC5w+itR5l7GCdqwZzA0aQ2J8D8/rdB6ghQ0hJTb3orhhzDXHwSn6tK2qse5eDhTd5m hmmSmxNHFj2z0f7qfvzJsJbxgrN/cPnj/U5cG17hEkX7vaqS+8PZbqpaXz1kO1snwVZ9U17ZhPW 7SX1onVorkW/Qeq5hBA== X-Authority-Analysis: v=2.4 cv=X5Vi7mTe c=1 sm=1 tr=0 ts=6a6cd242 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=Y2IxJ9c9Rs8Kov3niI8_:22 a=Fs_qYlmMC0Zql47DM_AA:9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-31_05,2026-07-30_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 lowpriorityscore=0 phishscore=0 priorityscore=1501 malwarescore=0 spamscore=0 suspectscore=0 bulkscore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607310128 v4: - Replaced first patch with version from Peter Zijlstra v3: - Drop uv_call_sched() [Claudio Imbrenda] v2: - Use msleep() in crypto code (Holger Dengler) - Add Reviewed-by tag from Peter Oberparleiter v1: Since [1] it is only possible to select the PREEMPT or PREEMPT_LAZY preemption models for s390. This has caused some minor problems, but everything has been addressed. Given that for both preemption models cond_resched() is a no-op remove or replace it everywhere. [1] commit 7dadeaa6e851 ("sched: Further restrict the preemption modes") Heiko Carstens (3): KVM: s390: Remove cond_resched() calls s390: Remove cond_resched() calls s390/cio: Remove cond_resched() calls Peter Zijlstra (1): s390/crypto: Replace cond_resched() with msleep(1) arch/s390/crypto/paes_s390.c | 44 +++------------------------------ arch/s390/crypto/phmac_s390.c | 25 +++---------------- arch/s390/include/asm/pkey.h | 16 ++++++++++++ arch/s390/include/asm/uv.h | 16 ++---------- arch/s390/kernel/perf_cpum_cf.c | 1 - arch/s390/kernel/uv.c | 2 +- arch/s390/kvm/gaccess.c | 8 ++---- arch/s390/kvm/gmap.c | 4 --- arch/s390/kvm/kvm-s390.c | 1 - arch/s390/kvm/pv.c | 11 ++++----- arch/s390/kvm/vsie.c | 1 - arch/s390/mm/cmm.c | 2 -- arch/s390/mm/gmap_helpers.c | 1 - arch/s390/mm/pageattr.c | 5 ---- arch/s390/mm/pgalloc.c | 1 - arch/s390/pci/pci.c | 4 +-- drivers/s390/char/uvdevice.c | 6 ++--- drivers/s390/cio/css.c | 8 ------ 18 files changed, 37 insertions(+), 119 deletions(-) -- 2.53.0