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libnvdimm: convert NDD_ flags to use bitops, introduce NDD_LOCKED

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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 <[email protected]>
This commit is contained in:
Dan Williams 2017-05-04 14:01:24 -07:00
commit 8f078b38dd
6 changed files with 19 additions and 9 deletions
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4
drivers/acpi/nfit/core.c
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@ -1512,7 +1512,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
}
if (nfit_mem->bdw && nfit_mem->memdev_pmem)
flags |= NDD_ALIASING;
set_bit(NDD_ALIASING, &flags);
/* collate flags across all memdevs for this dimm */
list_for_each_entry(nfit_memdev, &acpi_desc->memdevs, list) {
@ -1527,7 +1527,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc)
mem_flags = __to_nfit_memdev(nfit_mem)->flags;
if (mem_flags & ACPI_NFIT_MEM_NOT_ARMED)
flags |= NDD_UNARMED;
set_bit(NDD_UNARMED, &flags);
rc = acpi_nfit_add_dimm(acpi_desc, nfit_mem, device_handle);
if (rc)