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Tue, 28 Jul 2026 15:04:12 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.87.85.9]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 28 Jul 2026 15:04:12 +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 v2 0/4] s390: Remove or replace cond_resched() calls Date: Tue, 28 Jul 2026 17:04:08 +0200 Message-ID: <20260728150412.3893933-1-hca@linux.ibm.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 8zh8w7_myis3vN-7SN8qt95E3lbMEHgO X-Proofpoint-ORIG-GUID: 8zh8w7_myis3vN-7SN8qt95E3lbMEHgO X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzI4MDEzMiBTYWx0ZWRfX+tLRTBiNhGqC P9QMUHor8BPrMim9fUeCGXGVNzNsPdLP/nRfFy3Osj61Uros8d9rKE8IIYMZq7Q3JIKc3U6Rc0W +j9W/epy+JfUi1BIhF9uh+dHYUyVTQhORCReKozhm+3Ucy3JDpHdcAQs8KxGz9MWw56xgzi9PJp Rp+06qk5CEaRNZk2kwhOdCW7L3Qc2wyN6f0ovQMPB7nGLgqAqmRNlw5uWLbC5hIPEO/JAFTDDkQ zfhihARtpI2LkHHKpwthq6OQuZZ2oi5bKNoPZJBTG8uazPEtYuVVBoFYEjv3mJW5a/lXmxnJG5i OMNC2vWkKBmhdlrnWdhrrsu9s0XK8M4DXZZ6cfJu9zszBsXa92gK5RtYtn0+LrcoBCML65EH5A/ QQvht3Z2Bjwgwkd8A9W7PulGJ7FWqRzdtCTjFt0knDz1/lcHsLAyuFosYb3E6Sh6xPhw53qvUiH 0LKTl4OrI8Lui3lkM7w== X-Authority-Analysis: v=2.4 cv=SKFykuvH c=1 sm=1 tr=0 ts=6a68c4f2 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=RAioF0-LDSMA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=Fs_qYlmMC0Zql47DM_AA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzI4MDEzMiBTYWx0ZWRfX7XbFWybbvR4Y OP2iIYiXCoFV51u59duEeNOsqu44mXKUwoZnmC32ToBDZv/zxv1xnIbaZjpZKEtaWkNjA4dzaV5 DF9FOekC8x3nDFn+yQCeQJKlM+k9/o0= 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=2026-07-28_04,2026-07-28_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 clxscore=1011 adultscore=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 phishscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607280132 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 (4): s390/crypto: Replace cond_resched() with msleep(1) KVM: s390: Remove cond_resched() calls s390: Remove cond_resched() calls s390/cio: Remove cond_resched() calls arch/s390/crypto/paes_s390.c | 8 ++++---- arch/s390/crypto/phmac_s390.c | 4 ++-- arch/s390/include/asm/uv.h | 1 - arch/s390/kernel/perf_cpum_cf.c | 1 - arch/s390/kvm/gaccess.c | 8 ++------ arch/s390/kvm/gmap.c | 4 ---- arch/s390/kvm/kvm-s390.c | 1 - arch/s390/kvm/pv.c | 1 - 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/cio/css.c | 8 -------- 15 files changed, 9 insertions(+), 41 deletions(-) -- 2.53.0