libnvdimm, namespace: allow creation of multiple pmem-namespaces per region
Similar to BLK regions, publish new seed namespace devices to allow
unused PMEM region capacity to be consumed by additional namespaces.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index 3ac534a..4f74e00 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -530,11 +530,12 @@
if (is_nd_pmem(dev))
return;
}
- if (dev->parent && is_nd_blk(dev->parent) && probe) {
+ if (dev->parent && (is_nd_blk(dev->parent) || is_nd_pmem(dev->parent))
+ && probe) {
nd_region = to_nd_region(dev->parent);
nvdimm_bus_lock(dev);
if (nd_region->ns_seed == dev)
- nd_region_create_blk_seed(nd_region);
+ nd_region_create_ns_seed(nd_region);
nvdimm_bus_unlock(dev);
}
if (is_nd_btt(dev) && probe) {
@@ -544,23 +545,30 @@
nvdimm_bus_lock(dev);
if (nd_region->btt_seed == dev)
nd_region_create_btt_seed(nd_region);
- if (nd_region->ns_seed == &nd_btt->ndns->dev &&
- is_nd_blk(dev->parent))
- nd_region_create_blk_seed(nd_region);
+ if (nd_region->ns_seed == &nd_btt->ndns->dev)
+ nd_region_create_ns_seed(nd_region);
nvdimm_bus_unlock(dev);
}
if (is_nd_pfn(dev) && probe) {
+ struct nd_pfn *nd_pfn = to_nd_pfn(dev);
+
nd_region = to_nd_region(dev->parent);
nvdimm_bus_lock(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);
nvdimm_bus_unlock(dev);
}
if (is_nd_dax(dev) && probe) {
+ struct nd_dax *nd_dax = to_nd_dax(dev);
+
nd_region = to_nd_region(dev->parent);
nvdimm_bus_lock(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);
}
}