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libnvdimm, label: honor the lba size specified in v1.2 labels

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Previously we only honored the lba size for blk-aperture mode
namespaces. For pmem namespaces the lba size was just assumed to be 512.
With the new v1.2 label definition and compatibility with other
operating environments, the ->lbasize property is now respected for pmem
namespaces.

Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2017-06-04 12:12:07 +09:00
parent c12c48ce86
commit f979b13c3c
4 changed files with 57 additions and 12 deletions
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2
include/linux/nd.h
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@ -75,12 +75,14 @@ struct nd_namespace_io {
/**
* struct nd_namespace_pmem - namespace device for dimm-backed interleaved memory
* @nsio: device and system physical address range to drive
* @lbasize: logical sector size for the namespace in block-device-mode
* @alt_name: namespace name supplied in the dimm label
* @uuid: namespace name supplied in the dimm label
* @id: ida allocated id
*/
struct nd_namespace_pmem {
struct nd_namespace_io nsio;
unsigned long lbasize;
char *alt_name;
u8 *uuid;
int id;