diff options
Diffstat (limited to 'include/sys/uberblock_impl.h')
| -rw-r--r-- | include/sys/uberblock_impl.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sys/uberblock_impl.h b/include/sys/uberblock_impl.h index 6ab6aa313..9fdc70b91 100644 --- a/include/sys/uberblock_impl.h +++ b/include/sys/uberblock_impl.h @@ -43,6 +43,7 @@ extern "C" { */ #define UBERBLOCK_MAGIC 0x00bab10c /* oo-ba-bloc! */ #define UBERBLOCK_SHIFT 10 /* up to 1K */ +#define MMP_MAGIC 0xa11cea11 /* all-see-all */ struct uberblock { uint64_t ub_magic; /* UBERBLOCK_MAGIC */ @@ -54,6 +55,11 @@ struct uberblock { /* highest SPA_VERSION supported by software that wrote this txg */ uint64_t ub_software_version; + + /* Maybe missing in uberblocks we read, but always written */ + uint64_t ub_mmp_magic; /* MMP_MAGIC */ + uint64_t ub_mmp_delay; /* nanosec since last MMP write */ + uint64_t ub_mmp_seq; /* reserved for sequence number */ }; #ifdef __cplusplus |