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| author | Dan Williams <dan.j.williams@intel.com> | 2020-02-28 06:31:45 +0100 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2020-03-17 20:23:21 +0100 |
| commit | b2ba7e91fa81bec9b64c47ab852145559cad2b68 (patch) | |
| tree | 51d7c3caccd913e3bdd10a9179347e5dc4401eee /drivers/nvdimm/pfn.h | |
| parent | mm/memremap_pages: Introduce memremap_compat_align() (diff) | |
| download | linux-b2ba7e91fa81bec9b64c47ab852145559cad2b68.tar.xz linux-b2ba7e91fa81bec9b64c47ab852145559cad2b68.zip | |
libnvdimm/pfn: Prevent raw mode fallback if pfn-infoblock valid
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>
Diffstat (limited to 'drivers/nvdimm/pfn.h')
0 files changed, 0 insertions, 0 deletions