| commit | 24e3a7fb60a9187e5df90e5fa655ffc94b9c4f77 | |
| author | Vishal Verma <vishal.l.verma@intel.com> | |
| Mon, 18 Dec 2017 16:28:39 +0000 (18 09:28 -0700) | ||
| committer | Dan Williams <dan.j.williams@intel.com> | |
| Thu, 21 Dec 2017 22:59:27 +0000 (21 14:59 -0800) | ||
| tree | eac112b892e6a56fc4217ba20b5b30af1b4ea504 | treesnapshot (tar.gz zip) |
| parent | 13b7954c0b8dd2d6382b4ddb5053f09e389d5c6e | commitdiff |
libnvdimm, btt: Fix an incompatibility in the log layout
Due to a spec misinterpretation, the Linux implementation of the BTT log
area had different padding scheme from other implementations, such as
UEFI and NVML.
This fixes the padding scheme, and defaults to it for new BTT layouts.
We attempt to detect the padding scheme in use when probing for an
existing BTT. If we detect the older/incompatible scheme, we continue
using it.
Reported-by: Juston Li <juston.li@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: <stable@vger.kernel.org>
Fixes: 5212e11fde4d ("nd_btt: atomic sector updates")
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Due to a spec misinterpretation, the Linux implementation of the BTT log
area had different padding scheme from other implementations, such as
UEFI and NVML.
This fixes the padding scheme, and defaults to it for new BTT layouts.
We attempt to detect the padding scheme in use when probing for an
existing BTT. If we detect the older/incompatible scheme, we continue
using it.
Reported-by: Juston Li <juston.li@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: <stable@vger.kernel.org>
Fixes: 5212e11fde4d ("nd_btt: atomic sector updates")
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| drivers/nvdimm/btt.c | diffblobblamehistory | |
| drivers/nvdimm/btt.h | diffblobblamehistory |