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Add write_nr to quorum blocks

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Add a write_nr field to the quorum block header which is incremented
with every write.  Each event also gets a write_nr field that is set to
the incremented value from the header.   This gives us a history of the
order of event updates that isn't sensitive to misconfigured time.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2021-09-28 13:59:55 -07:00
parent 1cdcf41ac7
commit ac2587017e
3 changed files with 8 additions and 2 deletions
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6
utils/src/print.c
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@@ -898,13 +898,15 @@ static int print_quorum_blocks(int fd, struct scoutfs_super_block *super)
printf("quorum blkno %llu (slot %llu)\n",
blkno, blkno - SCOUTFS_QUORUM_BLKNO);
print_block_header(&blk->hdr, SCOUTFS_BLOCK_SM_SIZE);
printf(" write_nr %llu\n", le64_to_cpu(blk->write_nr));
for (e = 0; e < array_size(event_names); e++) {
ev = &blk->events[e];
printf(" %12s: rid %016llx term %llu ts %llu.%08u\n",
printf(" %12s: rid %016llx term %llu write_nr %llu ts %llu.%08u\n",
event_names[e], le64_to_cpu(ev->rid), le64_to_cpu(ev->term),
le64_to_cpu(ev->ts.sec), le32_to_cpu(ev->ts.nsec));
le64_to_cpu(ev->write_nr), le64_to_cpu(ev->ts.sec),
le32_to_cpu(ev->ts.nsec));
}
}