From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: Dan Williams <dan.j.williams@intel.com>, linux-nvdimm@lists.01.org
Cc: peterz@infradead.org, dave.hansen@linux.intel.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH 11/16] libnvdimm: Simplify root read-only definition for the 'resource' attribute
Date: Tue, 12 Nov 2019 17:20:26 +0530 [thread overview]
Message-ID: <87ftits48t.fsf@linux.ibm.com> (raw)
In-Reply-To: <157309905534.1582359.13927459228885931097.stgit@dwillia2-desk3.amr.corp.intel.com>
Dan Williams <dan.j.williams@intel.com> writes:
> Rather than update the permission in ->is_visible() set the permission
> directly at declaration time.
>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
> Cc: Ira Weiny <ira.weiny@intel.com>
> Cc: Vishal Verma <vishal.l.verma@intel.com>
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
> ---
> drivers/nvdimm/namespace_devs.c | 9 +++------
> drivers/nvdimm/pfn_devs.c | 10 +---------
> drivers/nvdimm/region_devs.c | 10 +++-------
> 3 files changed, 7 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
> index 37471a272c1a..85b553094d19 100644
> --- a/drivers/nvdimm/namespace_devs.c
> +++ b/drivers/nvdimm/namespace_devs.c
> @@ -1303,7 +1303,7 @@ static ssize_t resource_show(struct device *dev,
> return -ENXIO;
> return sprintf(buf, "%#llx\n", (unsigned long long) res->start);
> }
> -static DEVICE_ATTR_RO(resource);
> +static DEVICE_ATTR(resource, 0400, resource_show, NULL);
>
> static const unsigned long blk_lbasize_supported[] = { 512, 520, 528,
> 4096, 4104, 4160, 4224, 0 };
> @@ -1619,11 +1619,8 @@ static umode_t namespace_visible(struct kobject *kobj,
> {
> struct device *dev = container_of(kobj, struct device, kobj);
>
> - if (a == &dev_attr_resource.attr) {
> - if (is_namespace_blk(dev))
> - return 0;
> - return 0400;
> - }
> + if (a == &dev_attr_resource.attr && is_namespace_blk(dev))
> + return 0;
>
> if (is_namespace_pmem(dev) || is_namespace_blk(dev)) {
> if (a == &dev_attr_size.attr)
> diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
> index e809961e2b6f..9f9cb51301e7 100644
> --- a/drivers/nvdimm/pfn_devs.c
> +++ b/drivers/nvdimm/pfn_devs.c
> @@ -218,7 +218,7 @@ static ssize_t resource_show(struct device *dev,
>
> return rc;
> }
> -static DEVICE_ATTR_RO(resource);
> +static DEVICE_ATTR(resource, 0400, resource_show, NULL);
>
> static ssize_t size_show(struct device *dev,
> struct device_attribute *attr, char *buf)
> @@ -269,16 +269,8 @@ static struct attribute *nd_pfn_attributes[] = {
> NULL,
> };
>
> -static umode_t pfn_visible(struct kobject *kobj, struct attribute *a, int n)
> -{
> - if (a == &dev_attr_resource.attr)
> - return 0400;
> - return a->mode;
> -}
> -
> static struct attribute_group nd_pfn_attribute_group = {
> .attrs = nd_pfn_attributes,
> - .is_visible = pfn_visible,
> };
>
> const struct attribute_group *nd_pfn_attribute_groups[] = {
> diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
> index 0afc1973e938..be3e429e86af 100644
> --- a/drivers/nvdimm/region_devs.c
> +++ b/drivers/nvdimm/region_devs.c
> @@ -553,7 +553,7 @@ static ssize_t resource_show(struct device *dev,
>
> return sprintf(buf, "%#llx\n", nd_region->ndr_start);
> }
> -static DEVICE_ATTR_RO(resource);
> +static DEVICE_ATTR(resource, 0400, resource_show, NULL);
>
> static ssize_t persistence_domain_show(struct device *dev,
> struct device_attribute *attr, char *buf)
> @@ -605,12 +605,8 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
> if (!is_memory(dev) && a == &dev_attr_badblocks.attr)
> return 0;
>
> - if (a == &dev_attr_resource.attr) {
> - if (is_memory(dev))
> - return 0400;
> - else
> - return 0;
> - }
> + if (a == &dev_attr_resource.attr && !is_memory(dev))
> + return 0;
>
> if (a == &dev_attr_deep_flush.attr) {
> int has_flush = nvdimm_has_flush(nd_region);
> _______________________________________________
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next prev parent reply other threads:[~2019-11-12 11:51 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 3:56 [PATCH 00/16] Memory Hierarchy: Enable target node lookups for reserved memory Dan Williams
2019-11-07 3:56 ` [PATCH 01/16] libnvdimm: Move attribute groups to device type Dan Williams
2019-11-12 11:28 ` Aneesh Kumar K.V
2019-11-07 3:56 ` [PATCH 02/16] libnvdimm: Move region attribute group definition Dan Williams
2019-11-12 11:29 ` Aneesh Kumar K.V
2019-11-07 3:56 ` [PATCH 03/16] libnvdimm: Move nd_device_attribute_group to device_type Dan Williams
2019-11-12 11:30 ` Aneesh Kumar K.V
2019-11-07 3:56 ` [PATCH 04/16] libnvdimm: Move nd_numa_attribute_group " Dan Williams
2019-11-12 9:22 ` Aneesh Kumar K.V
2019-11-13 1:26 ` Dan Williams
2019-11-13 6:02 ` Aneesh Kumar K.V
2019-11-13 6:14 ` Dan Williams
2019-11-07 3:57 ` [PATCH 05/16] libnvdimm: Move nd_region_attribute_group " Dan Williams
2019-11-12 11:45 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 06/16] libnvdimm: Move nd_mapping_attribute_group " Dan Williams
2019-11-12 11:45 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 07/16] libnvdimm: Move nvdimm_attribute_group " Dan Williams
2019-11-12 11:48 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 08/16] libnvdimm: Move nvdimm_bus_attribute_group " Dan Williams
2019-11-12 11:48 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 09/16] dax: Create a dax device_type Dan Williams
2019-11-12 11:49 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 10/16] dax: Simplify root read-only definition for the 'resource' attribute Dan Williams
2019-11-12 11:49 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 11/16] libnvdimm: " Dan Williams
2019-11-12 11:50 ` Aneesh Kumar K.V [this message]
2019-11-07 3:57 ` [PATCH 12/16] dax: Add numa_node to the default device-dax attributes Dan Williams
2019-11-12 11:50 ` Aneesh Kumar K.V
2019-11-07 3:57 ` [PATCH 13/16] acpi/mm: Up-level "map to online node" functionality Dan Williams
2019-11-11 11:30 ` Aneesh Kumar K.V
2019-11-11 23:38 ` Dan Williams
2019-11-07 3:57 ` [PATCH 14/16] x86/numa: Provide a range-to-target_node lookup facility Dan Williams
2019-11-07 3:57 ` [PATCH 15/16] libnvdimm/e820: Drop the wrapper around memory_add_physaddr_to_nid Dan Williams
2019-11-07 3:58 ` [PATCH 16/16] libnvdimm/e820: Retrieve and populate correct 'target_node' info Dan Williams
2019-11-09 5:02 ` kbuild test robot
2019-11-12 11:42 ` [PATCH 00/16] Memory Hierarchy: Enable target node lookups for reserved memory Aneesh Kumar K.V
2019-11-12 19:37 ` Dan Williams
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