diff options
Diffstat (limited to 'drivers/nvdimm/pfn.h')
| -rw-r--r-- | drivers/nvdimm/pfn.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/nvdimm/pfn.h b/drivers/nvdimm/pfn.h index 8e343a3ca873..dde9853453d3 100644 --- a/drivers/nvdimm/pfn.h +++ b/drivers/nvdimm/pfn.h @@ -19,6 +19,7 @@ #define PFN_SIG_LEN 16 #define PFN_SIG "NVDIMM_PFN_INFO\0" +#define DAX_SIG "NVDIMM_DAX_INFO\0" struct nd_pfn_sb { u8 signature[PFN_SIG_LEN]; @@ -33,7 +34,9 @@ struct nd_pfn_sb { /* minor-version-1 additions for section alignment */ __le32 start_pad; __le32 end_trunc; - u8 padding[4004]; + /* minor-version-2 record the base alignment of the mapping */ + __le32 align; + u8 padding[4000]; __le64 checksum; }; |