* Increasing replication is an explicit operation triggered by
* rereplicate, currently, so that users don't get an unexpected -ENOSPC
*/
- if (!(m->data_opts.write_flags & BCH_WRITE_CACHED) &&
- !durability_required) {
- m->data_opts.kill_ptrs |= m->data_opts.rewrite_ptrs;
- m->data_opts.rewrite_ptrs = 0;
- /* if iter == NULL, it's just a promote */
- if (iter)
- ret = bch2_extent_drop_ptrs(trans, iter, k, m->data_opts);
- goto out;
- }
-
m->op.nr_replicas = min(durability_removing, durability_required) +
m->data_opts.extra_replicas;
if (!(durability_have + durability_removing))
m->op.nr_replicas = max((unsigned) m->op.nr_replicas, 1);
- if (!m->op.nr_replicas) {
- struct printbuf buf = PRINTBUF;
+ m->op.nr_replicas_required = m->op.nr_replicas;
- bch2_data_update_to_text(&buf, m);
- WARN(1, "trying to move an extent, but nr_replicas=0\n%s", buf.buf);
- printbuf_exit(&buf);
+ /*
+ * It might turn out that we don't need any new replicas, if the
+ * replicas or durability settings have been changed since the extent
+ * was written:
+ */
+ if (!m->op.nr_replicas) {
+ m->data_opts.kill_ptrs |= m->data_opts.rewrite_ptrs;
+ m->data_opts.rewrite_ptrs = 0;
+ /* if iter == NULL, it's just a promote */
+ if (iter)
+ ret = bch2_extent_drop_ptrs(trans, iter, k, m->data_opts);
goto out;
}
- m->op.nr_replicas_required = m->op.nr_replicas;
-
if (reserve_sectors) {
ret = bch2_disk_reservation_add(c, &m->op.res, reserve_sectors,
m->data_opts.extra_replicas