diff options
Diffstat (limited to 'super1.c')
| -rw-r--r-- | super1.c | 65 |
1 files changed, 59 insertions, 6 deletions
@@ -58,7 +58,14 @@ struct mdp_superblock_1 { * NOTE: signed, so bitmap can be before superblock * only meaningful of feature_map[0] is set. */ - __u8 pad1[128-100]; /* set to 0 when written */ + + /* These are only valid with feature bit '4' */ + __u64 reshape_position; /* next address in array-space for reshape */ + __u32 new_level; /* new level we are reshaping to */ + __u32 delta_disks; /* change in number of raid_disks */ + __u32 new_layout; /* new layout */ + __u32 new_chunk; /* new chunk size (bytes) */ + __u8 pad1[128-124]; /* set to 0 when written */ /* constant this-device information - 64 bytes */ __u64 data_offset; /* sector start of data, often 0 */ @@ -94,8 +101,9 @@ struct mdp_superblock_1 { #define MD_FEATURE_RECOVERY_OFFSET 2 /* recovery_offset is present and * must be honoured */ +#define MD_FEATURE_RESHAPE_ACTIVE 4 -#define MD_FEATURE_ALL (1|2) +#define MD_FEATURE_ALL (1|2|4) #ifndef offsetof #define offsetof(t,f) ((int)&(((t*)0)->f)) @@ -156,8 +164,20 @@ static void examine_super1(void *sbv) printf(" Raid Devices : %d\n", __le32_to_cpu(sb->raid_disks)); printf("\n"); printf(" Device Size : %llu%s\n", (unsigned long long)sb->data_size, human_size(sb->data_size<<9)); - if (sb->size != sb->data_size) - printf(" Used Size : %llu%s\n", (unsigned long long)sb->size, human_size(sb->size<<9)); + if (__le32_to_cpu(sb->level) >= 0) { + int ddsks=0; + switch(__le32_to_cpu(sb->level)) { + case 1: ddsks=1;break; + case 4: + case 5: ddsks = sb->raid_disks-1; break; + case 6: ddsks = sb->raid_disks-2; break; + case 10: ddsks = sb->raid_disks / (sb->layout&255) / ((sb->layout>>8)&255); + } + if (ddsks) + printf(" Array Size : %llu%s\n", ddsks*(unsigned long long)sb->size, human_size(ddsks*sb->size<<9)); + if (sb->size != sb->data_size) + printf(" Used Size : %llu%s\n", (unsigned long long)sb->size, human_size(sb->size<<9)); + } if (sb->data_offset) printf(" Data Offset : %llu sectors\n", (unsigned long long)__le64_to_cpu(sb->data_offset)); if (sb->super_offset) @@ -171,6 +191,39 @@ static void examine_super1(void *sbv) printf("%02x", sb->device_uuid[i]); } printf("\n"); + printf("\n"); + if (sb->feature_map & __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE)) { + printf(" Reshape pos'n : %llu%s\n", __le64_to_cpu(sb->reshape_position)/2, + human_size(__le64_to_cpu(sb->reshape_position)<<9)); + if (__le32_to_cpu(sb->delta_disks)) { + printf(" Delta Devices : %d", __le32_to_cpu(sb->delta_disks)); + if (__le32_to_cpu(sb->delta_disks)) + printf(" (%d->%d)\n", + __le32_to_cpu(sb->raid_disks)-__le32_to_cpu(sb->delta_disks), + __le32_to_cpu(sb->raid_disks)); + else + printf(" (%d->%d)\n", __le32_to_cpu(sb->raid_disks), + __le32_to_cpu(sb->raid_disks)+__le32_to_cpu(sb->delta_disks)); + } + if (__le32_to_cpu(sb->new_level) != __le32_to_cpu(sb->level)) { + c = map_num(pers, __le32_to_cpu(sb->new_level)); + printf(" New Level : %s\n", c?c:"-unknown-"); + } + if (__le32_to_cpu(sb->new_layout) != __le32_to_cpu(sb->layout)) { + if (__le32_to_cpu(sb->level) == 5) { + c = map_num(r5layout, __le32_to_cpu(sb->new_layout)); + printf(" New Layout : %s\n", c?c:"-unknown-"); + } + if (__le32_to_cpu(sb->level) == 10) { + printf(" New Layout : near=%d, far=%d\n", + __le32_to_cpu(sb->new_layout)&255, + (__le32_to_cpu(sb->new_layout)>>8)&255); + } + } + if (__le32_to_cpu(sb->new_chunk) != __le32_to_cpu(sb->chunksize)) + printf(" New Chunksize : %dK\n", __le32_to_cpu(sb->new_chunk)/2); + printf("\n"); + } if (sb->devflags) { printf(" Flags :"); if (sb->devflags & WriteMostly1) @@ -203,10 +256,10 @@ static void examine_super1(void *sbv) case 5: case 6: case 10: - printf(" Chunk Size : %dK\n", __le32_to_cpu(sb->chunksize/2)); + printf(" Chunk Size : %dK\n", __le32_to_cpu(sb->chunksize)/2); break; case -1: - printf(" Rounding : %dK\n", __le32_to_cpu(sb->chunksize/2)); + printf(" Rounding : %dK\n", __le32_to_cpu(sb->chunksize)/2); break; default: break; } |