libnvdimm: convert NDD_ flags to use bitops, introduce NDD_LOCKED
This is a preparation patch for handling locked nvdimm label regions, a
new concept as introduced by the latest DSM document on pmem.io [1]. A
future patch will leverage nvdimm_set_locked() at DIMM probe time to
flag regions that can not be enabled. There should be no functional
difference resulting from this change.
[1]: http://pmem.io/documents/NVDIMM_DSM_Interface_Example-V1.3.pdf
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 07756b2..b550edf 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -222,7 +222,7 @@ int nd_region_to_nstype(struct nd_region *nd_region)
struct nd_mapping *nd_mapping = &nd_region->mapping[i];
struct nvdimm *nvdimm = nd_mapping->nvdimm;
- if (nvdimm->flags & NDD_ALIASING)
+ if (test_bit(NDD_ALIASING, &nvdimm->flags))
alias++;
}
if (alias)
@@ -881,7 +881,7 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
return NULL;
}
- if (nvdimm->flags & NDD_UNARMED)
+ if (test_bit(NDD_UNARMED, &nvdimm->flags))
ro = 1;
}
