Allow label support to be dynamically enabled for PMEM regions that are
not aliased with BLK. By default these PMEM regions are surfaced as a
single / label-less namespace. However, if the backing dimm(s) for the
region support labels then PMEM sub-division support can be enabled by
1/ disable the pmem region
2/ write a valid namespace index block to the label area
3/ re-enable the region and create a namespace
See the man page for the "ndctl init-labels" command.
---
Dan Williams (2):
libnvdimm: allow a platform to force enable label support
tools/testing/nvdimm: dynamic label support
drivers/nvdimm/dimm.c | 2 ++
drivers/nvdimm/dimm_devs.c | 7 +++++++
drivers/nvdimm/nd.h | 1 +
tools/testing/nvdimm/test/nfit.c | 30 +++++++++++++++++++++++-------
4 files changed, 33 insertions(+), 7 deletions(-)
