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authorDan Williams <dan.j.williams@intel.com>2016-09-19 16:38:50 -0700
committerDan Williams <dan.j.williams@intel.com>2016-09-30 19:13:42 -0700
commit44c462eb9e19dfa089b454271dd2dff5eaf1ad6d (patch)
tree4973b6ac54b002b340e1c5a863a982048b2f7c1f /drivers/nvdimm
parente046114af5fcafe8d6d3f0b6ccb99804bad34bfb (diff)
downloadlinux-44c462eb9e19dfa089b454271dd2dff5eaf1ad6d.tar.bz2
libnvdimm, region: move region-mapping input-paramters to nd_mapping_desc
Before we add more libnvdimm-private fields to nd_mapping make it clear which parameters are input vs libnvdimm internals. Use struct nd_mapping_desc instead of struct nd_mapping in nd_region_desc and make struct nd_mapping private to libnvdimm. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm')
-rw-r--r--drivers/nvdimm/nd.h14
-rw-r--r--drivers/nvdimm/region_devs.c16
2 files changed, 23 insertions, 7 deletions
diff --git a/drivers/nvdimm/nd.h b/drivers/nvdimm/nd.h
index 38d6f039234e..e58c40824e1f 100644
--- a/drivers/nvdimm/nd.h
+++ b/drivers/nvdimm/nd.h
@@ -98,6 +98,20 @@ struct nd_percpu_lane {
spinlock_t lock;
};
+struct nd_mapping {
+ struct nvdimm *nvdimm;
+ struct nd_namespace_label **labels;
+ u64 start;
+ u64 size;
+ /*
+ * @ndd is for private use at region enable / disable time for
+ * get_ndd() + put_ndd(), all other nd_mapping to ndd
+ * conversions use to_ndd() which respects enabled state of the
+ * nvdimm.
+ */
+ struct nvdimm_drvdata *ndd;
+};
+
struct nd_region {
struct device dev;
struct ida ns_ida;
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index e8d5ba7b29af..0ff43cbb15e3 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -755,10 +755,10 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
int ro = 0;
for (i = 0; i < ndr_desc->num_mappings; i++) {
- struct nd_mapping *nd_mapping = &ndr_desc->nd_mapping[i];
- struct nvdimm *nvdimm = nd_mapping->nvdimm;
+ struct nd_mapping_desc *mapping = &ndr_desc->mapping[i];
+ struct nvdimm *nvdimm = mapping->nvdimm;
- if ((nd_mapping->start | nd_mapping->size) % SZ_4K) {
+ if ((mapping->start | mapping->size) % SZ_4K) {
dev_err(&nvdimm_bus->dev, "%s: %s mapping%d is not 4K aligned\n",
caller, dev_name(&nvdimm->dev), i);
@@ -809,11 +809,13 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
ndl->count = 0;
}
- memcpy(nd_region->mapping, ndr_desc->nd_mapping,
- sizeof(struct nd_mapping) * ndr_desc->num_mappings);
for (i = 0; i < ndr_desc->num_mappings; i++) {
- struct nd_mapping *nd_mapping = &ndr_desc->nd_mapping[i];
- struct nvdimm *nvdimm = nd_mapping->nvdimm;
+ struct nd_mapping_desc *mapping = &ndr_desc->mapping[i];
+ struct nvdimm *nvdimm = mapping->nvdimm;
+
+ nd_region->mapping[i].nvdimm = nvdimm;
+ nd_region->mapping[i].start = mapping->start;
+ nd_region->mapping[i].size = mapping->size;
get_device(&nvdimm->dev);
}