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Subject[PATCH 02/16] libnvdimm: Move region attribute group definition
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In preparation for moving region attributes from device attribute groups
to the region device-type, reorder the declaration so that it can be
referenced by the device-type definition without forward declarations.
No functional changes are intended to result from this change.

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/region_devs.c | 208 +++++++++++++++++++++---------------------
1 file changed, 104 insertions(+), 104 deletions(-)

diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index ef423ba1a711..e89f2eb3678c 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -140,36 +140,6 @@ static void nd_region_release(struct device *dev)
kfree(nd_region);
}

-static struct device_type nd_blk_device_type = {
- .name = "nd_blk",
- .release = nd_region_release,
-};
-
-static struct device_type nd_pmem_device_type = {
- .name = "nd_pmem",
- .release = nd_region_release,
-};
-
-static struct device_type nd_volatile_device_type = {
- .name = "nd_volatile",
- .release = nd_region_release,
-};
-
-bool is_nd_pmem(struct device *dev)
-{
- return dev ? dev->type == &nd_pmem_device_type : false;
-}
-
-bool is_nd_blk(struct device *dev)
-{
- return dev ? dev->type == &nd_blk_device_type : false;
-}
-
-bool is_nd_volatile(struct device *dev)
-{
- return dev ? dev->type == &nd_volatile_device_type : false;
-}
-
struct nd_region *to_nd_region(struct device *dev)
{
struct nd_region *nd_region = container_of(dev, struct nd_region, dev);
@@ -674,80 +644,6 @@ static umode_t region_visible(struct kobject *kobj, struct attribute *a, int n)
return 0;
}

-struct attribute_group nd_region_attribute_group = {
- .attrs = nd_region_attributes,
- .is_visible = region_visible,
-};
-EXPORT_SYMBOL_GPL(nd_region_attribute_group);
-
-u64 nd_region_interleave_set_cookie(struct nd_region *nd_region,
- struct nd_namespace_index *nsindex)
-{
- struct nd_interleave_set *nd_set = nd_region->nd_set;
-
- if (!nd_set)
- return 0;
-
- if (nsindex && __le16_to_cpu(nsindex->major) == 1
- && __le16_to_cpu(nsindex->minor) == 1)
- return nd_set->cookie1;
- return nd_set->cookie2;
-}
-
-u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region)
-{
- struct nd_interleave_set *nd_set = nd_region->nd_set;
-
- if (nd_set)
- return nd_set->altcookie;
- return 0;
-}
-
-void nd_mapping_free_labels(struct nd_mapping *nd_mapping)
-{
- struct nd_label_ent *label_ent, *e;
-
- lockdep_assert_held(&nd_mapping->lock);
- list_for_each_entry_safe(label_ent, e, &nd_mapping->labels, list) {
- list_del(&label_ent->list);
- kfree(label_ent);
- }
-}
-
-/*
- * When a namespace is activated create new seeds for the next
- * namespace, or namespace-personality to be configured.
- */
-void nd_region_advance_seeds(struct nd_region *nd_region, struct device *dev)
-{
- nvdimm_bus_lock(dev);
- if (nd_region->ns_seed == dev) {
- nd_region_create_ns_seed(nd_region);
- } else if (is_nd_btt(dev)) {
- struct nd_btt *nd_btt = to_nd_btt(dev);
-
- if (nd_region->btt_seed == dev)
- nd_region_create_btt_seed(nd_region);
- if (nd_region->ns_seed == &nd_btt->ndns->dev)
- nd_region_create_ns_seed(nd_region);
- } else if (is_nd_pfn(dev)) {
- struct nd_pfn *nd_pfn = to_nd_pfn(dev);
-
- if (nd_region->pfn_seed == dev)
- nd_region_create_pfn_seed(nd_region);
- if (nd_region->ns_seed == &nd_pfn->ndns->dev)
- nd_region_create_ns_seed(nd_region);
- } else if (is_nd_dax(dev)) {
- struct nd_dax *nd_dax = to_nd_dax(dev);
-
- if (nd_region->dax_seed == dev)
- nd_region_create_dax_seed(nd_region);
- if (nd_region->ns_seed == &nd_dax->nd_pfn.ndns->dev)
- nd_region_create_ns_seed(nd_region);
- }
- nvdimm_bus_unlock(dev);
-}
-
static ssize_t mappingN(struct device *dev, char *buf, int n)
{
struct nd_region *nd_region = to_nd_region(dev);
@@ -861,6 +757,110 @@ struct attribute_group nd_mapping_attribute_group = {
};
EXPORT_SYMBOL_GPL(nd_mapping_attribute_group);

+struct attribute_group nd_region_attribute_group = {
+ .attrs = nd_region_attributes,
+ .is_visible = region_visible,
+};
+EXPORT_SYMBOL_GPL(nd_region_attribute_group);
+
+static struct device_type nd_blk_device_type = {
+ .name = "nd_blk",
+ .release = nd_region_release,
+};
+
+static struct device_type nd_pmem_device_type = {
+ .name = "nd_pmem",
+ .release = nd_region_release,
+};
+
+static struct device_type nd_volatile_device_type = {
+ .name = "nd_volatile",
+ .release = nd_region_release,
+};
+
+bool is_nd_pmem(struct device *dev)
+{
+ return dev ? dev->type == &nd_pmem_device_type : false;
+}
+
+bool is_nd_blk(struct device *dev)
+{
+ return dev ? dev->type == &nd_blk_device_type : false;
+}
+
+bool is_nd_volatile(struct device *dev)
+{
+ return dev ? dev->type == &nd_volatile_device_type : false;
+}
+
+u64 nd_region_interleave_set_cookie(struct nd_region *nd_region,
+ struct nd_namespace_index *nsindex)
+{
+ struct nd_interleave_set *nd_set = nd_region->nd_set;
+
+ if (!nd_set)
+ return 0;
+
+ if (nsindex && __le16_to_cpu(nsindex->major) == 1
+ && __le16_to_cpu(nsindex->minor) == 1)
+ return nd_set->cookie1;
+ return nd_set->cookie2;
+}
+
+u64 nd_region_interleave_set_altcookie(struct nd_region *nd_region)
+{
+ struct nd_interleave_set *nd_set = nd_region->nd_set;
+
+ if (nd_set)
+ return nd_set->altcookie;
+ return 0;
+}
+
+void nd_mapping_free_labels(struct nd_mapping *nd_mapping)
+{
+ struct nd_label_ent *label_ent, *e;
+
+ lockdep_assert_held(&nd_mapping->lock);
+ list_for_each_entry_safe(label_ent, e, &nd_mapping->labels, list) {
+ list_del(&label_ent->list);
+ kfree(label_ent);
+ }
+}
+
+/*
+ * When a namespace is activated create new seeds for the next
+ * namespace, or namespace-personality to be configured.
+ */
+void nd_region_advance_seeds(struct nd_region *nd_region, struct device *dev)
+{
+ nvdimm_bus_lock(dev);
+ if (nd_region->ns_seed == dev) {
+ nd_region_create_ns_seed(nd_region);
+ } else if (is_nd_btt(dev)) {
+ struct nd_btt *nd_btt = to_nd_btt(dev);
+
+ if (nd_region->btt_seed == dev)
+ nd_region_create_btt_seed(nd_region);
+ if (nd_region->ns_seed == &nd_btt->ndns->dev)
+ nd_region_create_ns_seed(nd_region);
+ } else if (is_nd_pfn(dev)) {
+ struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+
+ if (nd_region->pfn_seed == dev)
+ nd_region_create_pfn_seed(nd_region);
+ if (nd_region->ns_seed == &nd_pfn->ndns->dev)
+ nd_region_create_ns_seed(nd_region);
+ } else if (is_nd_dax(dev)) {
+ struct nd_dax *nd_dax = to_nd_dax(dev);
+
+ if (nd_region->dax_seed == dev)
+ nd_region_create_dax_seed(nd_region);
+ if (nd_region->ns_seed == &nd_dax->nd_pfn.ndns->dev)
+ nd_region_create_ns_seed(nd_region);
+ }
+ nvdimm_bus_unlock(dev);
+}
+
int nd_blk_region_init(struct nd_region *nd_region)
{
struct device *dev = &nd_region->dev;
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