From patchwork Thu Jan 23 14:46:25 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudio Imbrenda X-Patchwork-Id: 13948322 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 28C0821322F; Thu, 23 Jan 2025 14:46:44 +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=1737643606; cv=none; b=H6iZh/rpBoROMPmV1Ak2II+4W3SKUeaX+/CtzeKQOpVXdn2zFDW3YMrKcg55Yr1+Ww74cBwVNrHqDf3rTq6/xWhQ7l2vEd+krqlYID1nhiGCqBWpMOPhi6lu6e5xl29hOYXyWzq+OTS8jSBhEFIx2iohJv8bl8Jxz/1XhXy5GTk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737643606; c=relaxed/simple; bh=R/qcMzfFLkLUhT66ulB4tjFyvrg8rhE/lOI+1MyUmlY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SfC49tPvoMXK3RgaubFFmvU/I8dhBOC/kcpU93nod4wLUoXtpVEi/OccnqqnZezybJMw3a43TuyKfhqtgcjtdN7sepbOC6DMBrglbXpcJrr6LxDKthAlcn6T8s8VuH9f/Ln/AGgYIbZDwaH5YkhvRSvJkLDh7ASpiV1nV/ATxbg= 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=H5vE5tgj; 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="H5vE5tgj" Received: from pps.filterd (m0356516.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 50NDClSv016775; Thu, 23 Jan 2025 14:46:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=pp1; bh=HzqWAorIM7S7HuUam CjXHJNjqiVP+T7Z4kPPyvjlXT8=; b=H5vE5tgjHB+HkNCx0g/hCOX4tx1eGyndP Y4bYbYDYI43TJV1AxqmoNaJqtODbawiWbZeYcTYlnh753nQ3RqjA7gJbhqcujTf/ kl191Og9YlcghRr2bMN6pZA6DTdtMKC5h2upTaxLYW26bKUHFDhZlRMX+BuCoQZw bRKEIwyNpoUnDZI4BHuF+VF9054zhvk3d+/hdBuEvOhyvJZ+kU4JXu9eeRi9NjuT +aBYnn3wQE/31pbMIGL4ZmvvQdDTGme0WBibjPy2YqRXmJgL08RWvLWHYPoFSQTP koXpMrDVoF+LjvnGyGYyaYR5x56EujxqEhxU541gOehvPoWEvKMzw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 44b3gtwn3w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Jan 2025 14:46:37 +0000 (GMT) Received: from m0356516.ppops.net (m0356516.ppops.net [127.0.0.1]) by pps.reinject (8.18.0.8/8.18.0.8) with ESMTP id 50NENHGd001810; Thu, 23 Jan 2025 14:46:36 GMT Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 44b3gtwn3u-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Jan 2025 14:46:36 +0000 (GMT) Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 50NAnZx9029538; Thu, 23 Jan 2025 14:46:36 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 448qmnnysp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Jan 2025 14:46:35 +0000 Received: from smtpav05.fra02v.mail.ibm.com (smtpav05.fra02v.mail.ibm.com [10.20.54.104]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 50NEkWlQ45416900 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 23 Jan 2025 14:46:32 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3329E20040; Thu, 23 Jan 2025 14:46:32 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F1DE62004D; Thu, 23 Jan 2025 14:46:31 +0000 (GMT) Received: from p-imbrenda.boeblingen.de.ibm.com (unknown [9.152.224.66]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Thu, 23 Jan 2025 14:46:31 +0000 (GMT) From: Claudio Imbrenda To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, frankja@linux.ibm.com, borntraeger@de.ibm.com, schlameuss@linux.ibm.com, david@redhat.com, willy@infradead.org, hca@linux.ibm.com, svens@linux.ibm.com, agordeev@linux.ibm.com, gor@linux.ibm.com, nrb@linux.ibm.com, nsg@linux.ibm.com, seanjc@google.com, seiden@linux.ibm.com, pbonzini@redhat.com Subject: [PATCH v4 13/15] KVM: s390: remove useless page->index usage Date: Thu, 23 Jan 2025 15:46:25 +0100 Message-ID: <20250123144627.312456-14-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250123144627.312456-1-imbrenda@linux.ibm.com> References: <20250123144627.312456-1-imbrenda@linux.ibm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: PZaXMawLx1BesV8_bU9XA_T3zqvH6Qzz X-Proofpoint-GUID: 5SPQh3lBdUWNaFJVtba7mnuOXryjbHU9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-01-23_06,2025-01-23_01,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 bulkscore=0 mlxscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 mlxlogscore=999 phishscore=0 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2501230108 The page->index field for VSIE dat tables is only used for segment tables. Stop setting the field for all region tables. Signed-off-by: Claudio Imbrenda Reviewed-by: Janosch Frank Reviewed-by: Christoph Schlameuss --- arch/s390/mm/gmap.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c index 918ea14515a1..38f044321704 100644 --- a/arch/s390/mm/gmap.c +++ b/arch/s390/mm/gmap.c @@ -1520,9 +1520,6 @@ int gmap_shadow_r2t(struct gmap *sg, unsigned long saddr, unsigned long r2t, page = gmap_alloc_crst(); if (!page) return -ENOMEM; - page->index = r2t & _REGION_ENTRY_ORIGIN; - if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; s_r2t = page_to_phys(page); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); @@ -1603,9 +1600,6 @@ int gmap_shadow_r3t(struct gmap *sg, unsigned long saddr, unsigned long r3t, page = gmap_alloc_crst(); if (!page) return -ENOMEM; - page->index = r3t & _REGION_ENTRY_ORIGIN; - if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; s_r3t = page_to_phys(page); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock); @@ -1686,9 +1680,6 @@ int gmap_shadow_sgt(struct gmap *sg, unsigned long saddr, unsigned long sgt, page = gmap_alloc_crst(); if (!page) return -ENOMEM; - page->index = sgt & _REGION_ENTRY_ORIGIN; - if (fake) - page->index |= GMAP_SHADOW_FAKE_TABLE; s_sgt = page_to_phys(page); /* Install shadow region second table */ spin_lock(&sg->guest_table_lock);