From patchwork Thu Sep 5 15:46:01 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Aneesh Kumar K.V" X-Patchwork-Id: 11133439 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 35CD514B4 for ; Thu, 5 Sep 2019 15:46:31 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 83CF2207E0 for ; Thu, 5 Sep 2019 15:46:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 83CF2207E0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from [127.0.0.1] (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 80CE120277249; Thu, 5 Sep 2019 08:47:27 -0700 (PDT) X-Original-To: linux-nvdimm@lists.01.org Delivered-To: linux-nvdimm@lists.01.org Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=aneesh.kumar@linux.ibm.com; receiver=linux-nvdimm@lists.01.org Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 26B5F20260CF7 for ; Thu, 5 Sep 2019 08:47:26 -0700 (PDT) Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x85FbpYd041422; Thu, 5 Sep 2019 11:46:28 -0400 Received: from ppma02dal.us.ibm.com (a.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.10]) by mx0a-001b2d01.pphosted.com with ESMTP id 2uu3hjn8n9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 05 Sep 2019 11:46:28 -0400 Received: from pps.filterd (ppma02dal.us.ibm.com [127.0.0.1]) by ppma02dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id x85Fjgwq018760; Thu, 5 Sep 2019 15:46:27 GMT Received: from b03cxnp08027.gho.boulder.ibm.com (b03cxnp08027.gho.boulder.ibm.com [9.17.130.19]) by ppma02dal.us.ibm.com with ESMTP id 2uqgh7jw7j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 05 Sep 2019 15:46:27 +0000 Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x85FkP4A58720544 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 5 Sep 2019 15:46:25 GMT Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1F91413604F; Thu, 5 Sep 2019 15:46:25 +0000 (GMT) Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B82EE136051; Thu, 5 Sep 2019 15:46:23 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.199.35.243]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Thu, 5 Sep 2019 15:46:23 +0000 (GMT) From: "Aneesh Kumar K.V" To: dan.j.williams@intel.com Subject: [PATCH v9 5/7] libnvdimm/label: Remove the dpa align check Date: Thu, 5 Sep 2019 21:16:01 +0530 Message-Id: <20190905154603.10349-6-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190905154603.10349-1-aneesh.kumar@linux.ibm.com> References: <20190905154603.10349-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-09-05_05:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=987 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1906280000 definitions=main-1909050147 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Aneesh Kumar K.V" , linux-nvdimm@lists.01.org Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" There's no strict requirement why slot_valid() needs to check for page alignment and it would seem to actively hurt cross-page-size compatibility. Let's delete the check and rely on checksum validation. Signed-off-by: Aneesh Kumar K.V --- drivers/nvdimm/label.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/nvdimm/label.c b/drivers/nvdimm/label.c index 73e197babc2f..47a4828b8b31 100644 --- a/drivers/nvdimm/label.c +++ b/drivers/nvdimm/label.c @@ -353,11 +353,6 @@ static bool slot_valid(struct nvdimm_drvdata *ndd, if (slot != __le32_to_cpu(nd_label->slot)) return false; - /* check that DPA allocations are page aligned */ - if ((__le64_to_cpu(nd_label->dpa) - | __le64_to_cpu(nd_label->rawsize)) % SZ_4K) - return false; - /* check checksum */ if (namespace_label_has(ndd, checksum)) { u64 sum, sum_save;