bio_list_merge_init
bio_list_merge_init(&bios, &blkg->async_bios);
bio_list_merge_init(bios, &cell->bios);
bio_list_merge_init(&bios, &b->bios);
bio_list_merge_init(&bios, &cache->deferred_bios);
bio_list_merge_init(&bios, &cache->deferred_bios);
bio_list_merge_init(&cache->deferred_bios, bios);
bio_list_merge_init(&discards, &clone->deferred_discard_bios);
bio_list_merge_init(&bios, &clone->deferred_bios);
bio_list_merge_init(&bios, &clone->deferred_flush_bios);
bio_list_merge_init(&bio_completions,
bio_list_merge_init(&deferred_bios, &era->deferred_bios);
bio_list_merge_init(&bios, &m->queued_bios);
bio_list_merge_init(&bios, master);
bio_list_merge_init(&bios, &tc->deferred_bio_list);
bio_list_merge_init(&bios, &tc->retry_on_resume_list);
bio_list_merge_init(&limiter->waiters, &limiter->new_waiters);
bio_list_merge_init(&flush->bios, &vdo->flusher->waiting_flush_bios);
bio_list_merge_init(&dest->bio_list, &victim->bio_list);
bio_list_merge_init(&tmp, &failed_read_list);