tree 916ab96acbdc05f548e85b3897be7167276b3e4f
parent 2e21807d4b131dfd4a8e5c82116a85b62f28aeec
author Dave Jiang <dave.jiang@intel.com> 1473437408 -0700
committer Dan Williams <dan.j.williams@intel.com> 1473467686 -0700

libnvdimm: allow legacy (e820) pmem region to clear bad blocks

Bad blocks can be injected via /sys/block/pmemN/badblocks. In a situation
where legacy pmem is being used or a pmem region created by using memmap
kernel parameter, the injected bad blocks are not cleared due to
nvdimm_clear_poison() failing from lack of ndctl function pointer. In
this case we need to just return as handled and allow the bad blocks to
be cleared rather than fail.

Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>