libnvdimm/pfn: Prevent raw mode fallback if pfn-infoblock valid

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The EOPNOTSUPP return code from the pmem driver indicates that the
namespace has a configuration that may be valid, but the current kernel
does not support it. Expand this to all of the nd_pfn_validate() error
conditions after the infoblock has been verified as self consistent.

This prevents exposing the namespace to I/O when the infoblock needs to
be corrected, or the system needs to be put into a different
configuration (like changing the page size on PowerPC).

Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

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Dan Williams 2020-02-27 21:31:45 -08:00

parent 9ffc1d19fc

commit b2ba7e91fa

1 changed files with 4 additions and 4 deletions

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drivers/nvdimm/pfn_devs.c

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