From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: dan.j.williams@intel.com
Cc: linux-nvdimm@lists.01.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: [PATCH v3 6/6] libnvdimm/namespace: Expose arch specific supported size align value
Date: Wed, 8 Jan 2020 12:22:19 +0530 [thread overview]
Message-ID: <20200108065219.171221-6-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20200108065219.171221-1-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 dd2d65c76fcf..a8f03b72d426 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1658,6 +1658,14 @@ 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,
@@ -1670,6 +1678,7 @@ 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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next prev parent reply other threads:[~2020-01-08 6:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-08 6:52 [PATCH v3 1/6] libnvdimm/namespace: Make namespace size validation arch dependent Aneesh Kumar K.V
2020-01-08 6:52 ` [PATCH v3 2/6] libnvdimm/namespace: Validate namespace start addr and size Aneesh Kumar K.V
2020-01-08 6:52 ` [PATCH v3 3/6] libnvdimm/namespace: Validate namespace size when creating new namespace Aneesh Kumar K.V
2020-01-08 6:52 ` [PATCH v3 4/6] libnvdimm/namespace: Add debug check while initializing namespace resource size Aneesh Kumar K.V
2020-01-08 6:52 ` [PATCH v3 5/6] libnvdimm/namespace: Align DPA based on arch restrictions Aneesh Kumar K.V
2020-01-08 6:52 ` Aneesh Kumar K.V [this message]
2020-01-10 20:38 ` [PATCH v3 1/6] libnvdimm/namespace: Make namespace size validation arch dependent Jeff Moyer
2020-01-10 21:03 ` Dan Williams
2020-01-11 4:29 ` Aneesh Kumar K.V
2020-01-11 4:33 ` Aneesh Kumar K.V
2020-01-11 4:55 ` Dan Williams
2020-01-13 15:08 ` Aneesh Kumar K.V
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