collection commit_queue, what's the purpose?

[Yiming Zhang <yzhan298@xxxxxxxx>]

Hi All,

I have a question of collection commit_queue. What’s the purpose of this queue?

void BlueStore::_txc_committed_kv(TransContext *txc) {
	if (txc->ch->commit_queue){
		txc->ch->commit_queue->queue(txc->oncommits);
	}else{
		finisher.queue(txc->oncommits);
	}
}

I didn’t see clear places that process the ch->commit_queue(did I miss something here?). Why don’t we just use finisher_queue to notify the client the I/O is finished?

Please advice.

Thanks,
Yiming
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