diff options
| author | Robert Buchholz <rbu@goodpoint.de> | 2012-09-10 17:28:21 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-09-10 17:28:21 +1000 |
| commit | 8a63c73123b9d022107c82bd684e17bf87bc081e (patch) | |
| tree | 930c5965d5bbd2f1bc71c810cb52ffca6edb002e /raid6check.c | |
| parent | 351d7680265945803e63695d23d7a88324468a64 (diff) | |
raid6check: Auto-repair mode
When calling raid6check in regular scanning mode, specifiying
"autorepair" as the last positional parameter will cause it
to automatically repair any single slot failes it identifies.
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'raid6check.c')
| -rw-r--r-- | raid6check.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/raid6check.c b/raid6check.c index 4aeafad4..e9a17a7c 100644 --- a/raid6check.c +++ b/raid6check.c @@ -284,6 +284,35 @@ int check_stripes(struct mdinfo *info, int *source, unsigned long long *offsets, err = unlock_all_stripes(info, sig); if(err != 0) goto exitCheck; + } else if (disk >= 0 && repair == 2) { + printf("Auto-repairing slot %d (%s)\n", disk, name[disk]); + if (disk == diskQ) { + qsyndrome(p, (uint8_t*)stripes[diskQ], (uint8_t**)blocks, data_disks, chunk_size); + } else { + char *all_but_failed_blocks[data_disks]; + int failed_block_index = block_index_for_slot[disk]; + for (i=0; i < data_disks; i++) + if (failed_block_index == i) + all_but_failed_blocks[i] = stripes[diskP]; + else + all_but_failed_blocks[i] = blocks[i]; + xor_blocks(stripes[disk], + all_but_failed_blocks, data_disks, chunk_size); + } + + err = lock_stripe(info, start, chunk_size, data_disks, sig); + if(err != 0) { + if (err != 2) + unlock_all_stripes(info, sig); + goto exitCheck; + } + + lseek64(source[disk], offsets[disk] + start * chunk_size, 0); + write(source[disk], stripes[disk], chunk_size); + + err = unlock_all_stripes(info, sig); + if(err != 0) + goto exitCheck; } @@ -343,7 +372,7 @@ int main(int argc, char *argv[]) prg++; if (argc < 4) { - fprintf(stderr, "Usage: %s md_device start_stripe length_stripes\n", prg); + fprintf(stderr, "Usage: %s md_device start_stripe length_stripes [autorepair]\n", prg); fprintf(stderr, " or: %s md_device repair stripe failed_slot_1 failed_slot_2\n", prg); exit_err = 1; goto exitHere; @@ -441,6 +470,8 @@ int main(int argc, char *argv[]) else { start = getnum(argv[2], &err); length = getnum(argv[3], &err); + if (argc >= 5 && strcmp(argv[4], "autorepair")==0) + repair = 2; } if (err) { |