diff options
Diffstat (limited to 'drivers/lightnvm/pblk.h')
| -rw-r--r-- | drivers/lightnvm/pblk.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h index 8c357fb6538e..fae2526f80b2 100644 --- a/drivers/lightnvm/pblk.h +++ b/drivers/lightnvm/pblk.h @@ -320,14 +320,26 @@ enum { }; #define PBLK_MAGIC 0x70626c6b /*pblk*/ -#define SMETA_VERSION cpu_to_le16(1) + +/* emeta/smeta persistent storage format versions: + * Changes in major version requires offline migration. + * Changes in minor version are handled automatically during + * recovery. + */ + +#define SMETA_VERSION_MAJOR (0) +#define SMETA_VERSION_MINOR (1) + +#define EMETA_VERSION_MAJOR (0) +#define EMETA_VERSION_MINOR (1) struct line_header { __le32 crc; __le32 identifier; /* pblk identifier */ __u8 uuid[16]; /* instance uuid */ __le16 type; /* line type */ - __le16 version; /* type version */ + __u8 version_major; /* version major */ + __u8 version_minor; /* version minor */ __le32 id; /* line id for current line */ }; |