40 	struct jset *j, *data = ca->set->journal.w[0].data;  in journal_read_bucket()
530 	j->cur = (j->cur == j->w)  in bch_journal_next()
531 		? &j->w[1]  in bch_journal_next()
532 		: &j->w[0];  in bch_journal_next()
552 	struct journal_write *w = bio->bi_private;  in journal_write_endio()  local
554 	cache_set_err_on(error, w->c, "journal io error");  in journal_write_endio()
555 	closure_put(&w->c->journal.io);  in journal_write_endio()
563 	struct journal_write *w = (j->cur == j->w)  in journal_write_done()  local
564 		? &j->w[1]  in journal_write_done()
565 		: &j->w[0];  in journal_write_done()
567 	__closure_wake_up(&w->wait);  in journal_write_done()
584 	struct journal_write *w = c->journal.cur;  in journal_write_unlocked()  local
586 	unsigned i, sectors = set_blocks(w->data, block_bytes(c)) *  in journal_write_unlocked()
593 	if (!w->need_write) {  in journal_write_unlocked()
603 	c->journal.blocks_free -= set_blocks(w->data, block_bytes(c));  in journal_write_unlocked()
605 	w->data->btree_level = c->root->level;  in journal_write_unlocked()
607 	bkey_copy(&w->data->btree_root, &c->root->key);  in journal_write_unlocked()
608 	bkey_copy(&w->data->uuid_bucket, &c->uuid_bucket);  in journal_write_unlocked()
611 		w->data->prio_bucket[ca->sb.nr_this_dev] = ca->prio_buckets[0];  in journal_write_unlocked()
613 	w->data->magic		= jset_magic(&c->sb);  in journal_write_unlocked()
614 	w->data->version	= BCACHE_JSET_VERSION;  in journal_write_unlocked()
615 	w->data->last_seq	= last_seq(&c->journal);  in journal_write_unlocked()
616 	w->data->csum		= csum_set(w->data);  in journal_write_unlocked()
631 		bio->bi_private = w;  in journal_write_unlocked()
632 		bch_bio_map(bio, w->data);  in journal_write_unlocked()
639 		ca->journal.seq[ca->journal.cur_idx] = w->data->seq;  in journal_write_unlocked()
666 	struct journal_write *w = c->journal.cur;  in journal_try_write()  local
668 	w->need_write = true;  in journal_try_write()
690 		struct journal_write *w = c->journal.cur;  in journal_wait_for_write()  local
692 		sectors = __set_blocks(w->data, w->data->keys + nkeys,  in journal_wait_for_write()
698 			return w;  in journal_wait_for_write()
713 			BUG_ON(!w->data->keys);  in journal_wait_for_write()
754 	struct journal_write *w;  in bch_journal()  local
760 	w = journal_wait_for_write(c, bch_keylist_nkeys(keys));  in bch_journal()
762 	memcpy(bset_bkey_last(w->data), keys->keys, bch_keylist_bytes(keys));  in bch_journal()
763 	w->data->keys += bch_keylist_nkeys(keys);  in bch_journal()
769 		closure_wait(&w->wait, parent);  in bch_journal()
771 	} else if (!w->dirty) {  in bch_journal()
772 		w->dirty = true;  in bch_journal()
798 	free_pages((unsigned long) c->journal.w[1].data, JSET_BITS);  in bch_journal_free()
799 	free_pages((unsigned long) c->journal.w[0].data, JSET_BITS);  in bch_journal_free()
812 	j->w[0].c = c;  in bch_journal_alloc()
813 	j->w[1].c = c;  in bch_journal_alloc()
816 	    !(j->w[0].data = (void *) __get_free_pages(GFP_KERNEL, JSET_BITS)) ||  in bch_journal_alloc()
817 	    !(j->w[1].data = (void *) __get_free_pages(GFP_KERNEL, JSET_BITS)))  in bch_journal_alloc()