From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: dan.j.williams@intel.com, vishal.l.verma@intel.com, jmoyer@redhat.com
Cc: linux-nvdimm@lists.01.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: [PATCH v4 6/6] libnvdimm/namespace: Expose arch specific supported size align value
Date: Mon, 20 Jan 2020 19:37:49 +0530 [thread overview]
Message-ID: <20200120140749.69549-7-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20200120140749.69549-1-aneesh.kumar@linux.ibm.com>
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 <aneesh.kumar@linux.ibm.com>
---
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 59169d914b86..ea76270c87d2 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1660,6 +1660,14 @@ 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,
@@ -1672,6 +1680,7 @@ 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,
};
--
2.24.1
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prev parent reply other threads:[~2020-01-20 14:08 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-20 14:07 [PATCH v4 0/6] Validating namespace size and start address attributes Aneesh Kumar K.V
2020-01-20 14:07 ` [PATCH v4 1/6] libnvdimm/namespace: Make namespace size validation arch dependent Aneesh Kumar K.V
2020-01-24 5:57 ` Dan Williams
2020-01-24 7:34 ` Aneesh Kumar K.V
2020-01-24 16:45 ` Dan Williams
2020-01-24 17:07 ` Aneesh Kumar K.V
2020-01-24 18:25 ` Dan Williams
2020-01-26 11:41 ` Aneesh Kumar K.V
2020-01-24 17:08 ` Aneesh Kumar K.V
2020-01-20 14:07 ` [PATCH v4 2/6] libnvdimm/namespace: Validate namespace start addr and size Aneesh Kumar K.V
2020-01-25 1:55 ` Dan Williams
2020-01-20 14:07 ` [PATCH v4 3/6] libnvdimm/namespace: Add arch dependent callback for namespace create time validation Aneesh Kumar K.V
2020-01-25 1:59 ` Dan Williams
2020-01-20 14:07 ` [PATCH v4 4/6] libnvdimm/namespace: Validate namespace size when creating a new namespace Aneesh Kumar K.V
2020-01-25 2:22 ` Dan Williams
2020-01-20 14:07 ` [PATCH v4 5/6] libnvdimm/namespace: Align DPA based on arch restrictions Aneesh Kumar K.V
2020-01-20 14:07 ` Aneesh Kumar K.V [this message]
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