From patchwork Thu Nov 28 08:30:57 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: 11265575 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 9E66D13A4 for ; Thu, 28 Nov 2019 08:32:00 +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 85EEF21781 for ; Thu, 28 Nov 2019 08:32:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 85EEF21781 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 ml01.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 1DE64101134F2; Thu, 28 Nov 2019 00:35:23 -0800 (PST) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=148.163.158.5; helo=mx0b-001b2d01.pphosted.com; envelope-from=aneesh.kumar@linux.ibm.com; receiver= 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 ml01.01.org (Postfix) with ESMTPS id 35CDD101134E9 for ; Thu, 28 Nov 2019 00:35:21 -0800 (PST) Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xAS8RFxr043915; Thu, 28 Nov 2019 03:31:55 -0500 Received: from ppma03dal.us.ibm.com (b.bd.3ea9.ip4.static.sl-reverse.com [169.62.189.11]) by mx0a-001b2d01.pphosted.com with ESMTP id 2wjar88411-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 28 Nov 2019 03:31:55 -0500 Received: from pps.filterd (ppma03dal.us.ibm.com [127.0.0.1]) by ppma03dal.us.ibm.com (8.16.0.27/8.16.0.27) with SMTP id xAS8UBWO007767; Thu, 28 Nov 2019 08:31:54 GMT Received: from b01cxnp22034.gho.pok.ibm.com (b01cxnp22034.gho.pok.ibm.com [9.57.198.24]) by ppma03dal.us.ibm.com with ESMTP id 2wevd772b5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 28 Nov 2019 08:31:54 +0000 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xAS8VrZu49545670 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 28 Nov 2019 08:31:53 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A664AAC05F; Thu, 28 Nov 2019 08:31:53 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 67177AC059; Thu, 28 Nov 2019 08:31:48 +0000 (GMT) Received: from skywalker.ibmuc.com (unknown [9.199.39.131]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 28 Nov 2019 08:31:47 +0000 (GMT) From: "Aneesh Kumar K.V" To: dan.j.williams@intel.com Subject: [PATCH v2 6/6] libnvdimm/namespace: Expose arch specific supported size align value Date: Thu, 28 Nov 2019 14:00:57 +0530 Message-Id: <20191128083057.141425-6-aneesh.kumar@linux.ibm.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191128083057.141425-1-aneesh.kumar@linux.ibm.com> References: <20191128083057.141425-1-aneesh.kumar@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-11-28_01:2019-11-28,2019-11-28 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxscore=0 phishscore=0 impostorscore=0 clxscore=1015 suspectscore=1 mlxlogscore=902 adultscore=0 malwarescore=0 spamscore=0 bulkscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1911280071 Message-ID-Hash: XTRPMQWBJOAONFAOX6UUNA2CUG6LYZWV X-Message-ID-Hash: XTRPMQWBJOAONFAOX6UUNA2CUG6LYZWV X-MailFrom: aneesh.kumar@linux.ibm.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: linux-nvdimm@lists.01.org, "Aneesh Kumar K.V" X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Expose supported size align as a namespace RO attribute. Usespace can use this to validate the size argument specified when creating a new namespace. Signed-off-by: Aneesh Kumar K.V --- drivers/nvdimm/namespace_devs.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c index 6a83db9f8734..22c714469f87 100644 --- a/drivers/nvdimm/namespace_devs.c +++ b/drivers/nvdimm/namespace_devs.c @@ -1684,6 +1684,14 @@ static ssize_t force_raw_show(struct device *dev, } static DEVICE_ATTR_RW(force_raw); +static ssize_t supported_size_align_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%ld\n", arch_namespace_align_size()); +} +static DEVICE_ATTR_RO(supported_size_align); + + static struct attribute *nd_namespace_attributes[] = { &dev_attr_nstype.attr, &dev_attr_size.attr, @@ -1696,6 +1704,7 @@ static struct attribute *nd_namespace_attributes[] = { &dev_attr_sector_size.attr, &dev_attr_dpa_extents.attr, &dev_attr_holder_class.attr, + &dev_attr_supported_size_align.attr, NULL, };