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Merge tag 'libnvdimm-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

Browse Source 
Pull libnvdimm updates from Dan Williams:
 "The highlight this cycle is continuing integration fixes for PowerPC
  and some resulting optimizations.

  Summary:

   - Updates to better support vmalloc space restrictions on PowerPC
     platforms.

   - Cleanups to move common sysfs attributes to core 'struct
     device_type' objects.

   - Export the 'target_node' attribute (the effective numa node if pmem
     is marked online) for regions and namespaces.

   - Miscellaneous fixups and optimizations"

* tag 'libnvdimm-for-5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (21 commits)
  MAINTAINERS: Remove Keith from NVDIMM maintainers
  libnvdimm: Export the target_node attribute for regions and namespaces
  dax: Add numa_node to the default device-dax attributes
  libnvdimm: Simplify root read-only definition for the 'resource' attribute
  dax: Simplify root read-only definition for the 'resource' attribute
  dax: Create a dax device_type
  libnvdimm: Move nvdimm_bus_attribute_group to device_type
  libnvdimm: Move nvdimm_attribute_group to device_type
  libnvdimm: Move nd_mapping_attribute_group to device_type
  libnvdimm: Move nd_region_attribute_group to device_type
  libnvdimm: Move nd_numa_attribute_group to device_type
  libnvdimm: Move nd_device_attribute_group to device_type
  libnvdimm: Move region attribute group definition
  libnvdimm: Move attribute groups to device type
  libnvdimm: Remove prototypes for nonexistent functions
  libnvdimm/btt: fix variable 'rc' set but not used
  libnvdimm/pmem: Delete include of nd-core.h
  libnvdimm/namespace: Differentiate between probe mapping and runtime mapping
  libnvdimm/pfn_dev: Don't clear device memmap area during generic namespace probe
  libnvdimm: Trivial comment fix
  ...
This commit is contained in:
Linus Torvalds
2019-12-01 18:43:25 -08:00
parent 43fd4bd72c 0dfbb932bb
commit d10032dd53
22 changed files with 387 additions and 354 deletions
Download Patch File Download Diff File Expand all files Collapse all files

235
drivers/nvdimm/region_devs.c
View File

@@ -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);
@@ -583,7 +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)
@@ -635,12 +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);
@@ -674,80 +640,6 @@ 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);
@@ -855,11 +747,124 @@ static struct attribute *mapping_attributes[] = {
NULL,
};
struct attribute_group nd_mapping_attribute_group = {
static const struct attribute_group nd_mapping_attribute_group = {
.is_visible = mapping_visible,
.attrs = mapping_attributes,
};
EXPORT_SYMBOL_GPL(nd_mapping_attribute_group);
static const struct attribute_group nd_region_attribute_group = {
.attrs = nd_region_attributes,
.is_visible = region_visible,
};
static const struct attribute_group *nd_region_attribute_groups[] = {
&nd_device_attribute_group,
&nd_region_attribute_group,
&nd_numa_attribute_group,
&nd_mapping_attribute_group,
NULL,
};
static const struct device_type nd_blk_device_type = {
.name = "nd_blk",
.release = nd_region_release,
.groups = nd_region_attribute_groups,
};
static const struct device_type nd_pmem_device_type = {
.name = "nd_pmem",
.release = nd_region_release,
.groups = nd_region_attribute_groups,
};
static const struct device_type nd_volatile_device_type = {
.name = "nd_volatile",
.release = nd_region_release,
.groups = nd_region_attribute_groups,
};
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)
{
@@ -931,8 +936,8 @@ void nd_region_release_lane(struct nd_region *nd_region, unsigned int lane)
EXPORT_SYMBOL(nd_region_release_lane);
static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
struct nd_region_desc *ndr_desc, struct device_type *dev_type,
const char *caller)
struct nd_region_desc *ndr_desc,
const struct device_type *dev_type, const char *caller)
{
struct nd_region *nd_region;
struct device *dev;